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Saffron(Crocus sativus L.) stigmas as a potential natural additive to improve oxidative stability attributes of sunflower(Helianthus annuus L.) oil stored under different conditions
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作者 Moussa Nid Ahmed Karima Abourat +3 位作者 Jamila Gagour El Hassan Sakar Khalid Majourhat Said Gharby 《Grain & Oil Science and Technology》 CAS 2024年第3期133-149,共17页
The aim of our study was to explore the antioxidant potential of Moroccan saffron stigmas(SS) and examine their performance as a natural antioxidant in enhancing the stability and quality properties of edible sunflowe... The aim of our study was to explore the antioxidant potential of Moroccan saffron stigmas(SS) and examine their performance as a natural antioxidant in enhancing the stability and quality properties of edible sunflower oil(SO), with a focus on understanding the critical importance of edible oil stability for predicting quality deterioration during storage. Bearing this in mind, our research was designed to compare the efficacy of three concentrations of dried SS(at 0.2%, 0.3%, and 0.6%) against tocobiol(a synthetic antioxidant) as a positive control(at 0.3% concentration). This comparison was conducted under three distinct storage conditions namely accelerated ageing(60 ℃), exposure to light at ambient temperature, and darkness, to evaluate their impact on preventing severe oxidation and extending oil shelf-life. Oxidation state evolution was evaluated through peroxide value(PV), free fatty acid(FFA), anisidine value(p-AV), K_(270)value(conjugated trienes), total oxidation index(TOTOX), iodine value(IV), and fatty acid composition(FA). Our results revealed notable differences in stability tracking parameters. Specifically, these parameters were higher in samples stored under accelerated conditions, followed by the samples stored in ambient light, while those stored in darkness showed the highest stability among the three storage conditions. Supplementation of sunflower oil with SS and tocobiol significantly enhanced its oxidation stability. Notably, SS exhibited exceptional effectiveness in stabilizing sunflower oil regardless of SS dose, with the highest efficacy observed at 0.6%. This was evidenced by the slower rate of oxidation parameters under various storage conditions, highlighting a superior antioxidant activity compared to both the non-enriched oil and tocobiol-enriched oil. Furthermore, saffron stigmas, used as a natural supplement,contributed to the preservation of polyunsaturated fatty acids, indicating its potential as a robust source of natural antioxidants in sunflower oil. These attributes position SS as a promising alternative to synthetic antioxidants, offering opportunities to enhance the nutritional quality and extend edible oil shelf-life. 展开更多
关键词 Crocus sativus L. Helianthus annuus L. Saffron stigmas Shelf-life Sunflower oil Tocobiol
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THE SECRETORY STIGMAS IN POPULUS: DEVELOPMENT, CYTOCHEMISTRY, ULTRASTRUCTURE AND THEIR RELATION TO INTERSECTIONAL INCOMPATIBILITY * 被引量:1
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作者 李文钿 孙福生 +1 位作者 成小飞 朱彤 《Acta Botanica Sinica》 CSCD 1995年第7期514-521,共8页
The stigmas of five species, Populus euphratica Oliv., P. alba L., P. simonii Carr., P. lasiocarpa Oliv. and P. nigra L. have been studied. Scanning electron microscopy re veals that exudates are present in the ... The stigmas of five species, Populus euphratica Oliv., P. alba L., P. simonii Carr., P. lasiocarpa Oliv. and P. nigra L. have been studied. Scanning electron microscopy re veals that exudates are present in the intercellular spaces, in the clefts between the multicel lular papillae and on the receptive surface. Release and movement of exudates can be visual ized when the fresh stigmas are stained with sudan Ⅲ and auramine O. Paraffin and semi thin resin sections of stigmas after glutaraldehyde osmium fixation evidence the lipidic nature of the exudates. Transmission electron microscopy reveals the glandular features of the stigmatic papillae cells, such as abundance of rough and smooth endoplasmic reticulum, polyribosomes, and well developed dictyosomes with secretory vesicles. Pellicle and epicuticular lamellate layers which have been considered as typical features of the dry type stigmas are also present in the species where stigmas appear extremely wet. It is concluded that stigmas in all of the five species are secretory at the receptive stage. Well developed generative and sperm cells were observed in the pollen tubes penetrating through the deep layers of the stigmatic tissue in the reciprocal crosses between P. euphratica and P. simonii, which indicated that there is no significant barrier in the stigma. 展开更多
关键词 Secretory stigma POPULUS ULTRASTRUCTURE CYTOCHEMISTRY INCOMPATIBILITY
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玉米须绞股蓝复合提取总黄酮工艺及其降压片的制备
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作者 刘霞 马泽刚 马林 《湖北农业科学》 2024年第4期136-140,230,共6页
以玉米须(stigma maydis)、绞股蓝(Gynostemma pentaphyllum)(1∶1)为提取原料,总黄酮含量为考察指标,通过提取溶剂、乙醇体积分数、提取温度、提取时间、料液比和提取次数等单因素考察对复合总黄酮含量的影响,再通过正交试验优化总黄... 以玉米须(stigma maydis)、绞股蓝(Gynostemma pentaphyllum)(1∶1)为提取原料,总黄酮含量为考察指标,通过提取溶剂、乙醇体积分数、提取温度、提取时间、料液比和提取次数等单因素考察对复合总黄酮含量的影响,再通过正交试验优化总黄酮的提取工艺,最后将优化提取的总黄酮过D101大孔吸附树脂精制后制备成降压片。结果表明,复方总黄酮的最佳提取工艺为乙醇体积分数50%,料液比1∶10,50℃下提取3.5 h。制备的片剂质量(片重差异±5.1%,脆碎度0.83%,崩解时限2.41 min)符合《中华人民共和国药典》(2020版)片剂的有关规定,并且降压片能降低SHR大鼠血压。 展开更多
关键词 玉米须(stigma maydis) 绞股蓝(Gynostemma pentaphyllum) 总黄酮 提取工艺 降压片 制备
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Quantitative trait loci identification reveals zinc finger protein CONSTANS-LIKE 4 as the key candidate gene of stigma color in watermelon(Citrullus lanatus)
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作者 Shuang Pei Zexu Wu +4 位作者 Ziqiao Ji Zheng Liu Zicheng Zhu Feishi Luan Shi Liu 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第7期2292-2305,共14页
Stigma color is a critical agronomic trait in watermelon that plays an important role in pollination.However,there are few reports on the regulation of stigma color in watermelon.In this study,a genetic analysis of th... Stigma color is a critical agronomic trait in watermelon that plays an important role in pollination.However,there are few reports on the regulation of stigma color in watermelon.In this study,a genetic analysis of the F2 population derived from ZXG1553(P1,with orange stigma)and W1-17(P2,with yellow stigma)indicated that stigma color is a quantitative trait and the orange stigma is recessive compared with the yellow stigma.Bulk segregant analysis sequencing(BSA-seq)revealed a 3.75 Mb segment on chromosome 6 that is related to stigma color.Also,a major stable effective QTL Clqsc6.1(QTL stigma color)was detected in two years between cleaved amplified polymorphic sequencing(CAPS)markers Chr06_8338913 and Chr06_9344593 spanning a~1.01 Mb interval that harbors 51 annotated genes.Cla97C06G117020(annotated as zinc finger protein CONSTANS-LIKE 4)was identified as the best candidate gene for the stigma color trait through RNA-seq,quantitative real-time PCR(qRT-PCR),and gene structure alignment analysis among the natural watermelon panel.The expression level of Cla97C06G117020 in the orange stigma accession was lower than in the yellow stigma accessions with a significant difference.A nonsynonymous SNP site of the Cla97C06G117020 coding region that causes amino acid variation was related to the stigma color variation among nine watermelon accessions according to their re-sequencing data.Stigma color formation is often related to carotenoids,and we also found that the expression trend of ClCHYB(annotated asβ-carotene hydroxylase)in the carotenoid metabolic pathway was consistent with Cla97C06G117020,and it was expressed in low amounts in the orange stigma accession.These data indicated that Cla97C06G117020 and ClCHYB may interact to form the stigma color.This study provides a theoretical basis for gene fine mapping and mechanisms for the regulation of stigma color in watermelon. 展开更多
关键词 WATERMELON stigma color gene mapping zinc finger protein CONSTANS-LIKE 4
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Assessing the current situation and the influencing factors affecting perceived stigma among older patients after leukemia diagnosis
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作者 Xuan Tang Shuang-Qin Chen +3 位作者 Jiang-Hua Huang Cai-Feng Deng Jie-Qiong Zou Juan Zuo 《World Journal of Psychiatry》 SCIE 2024年第6期812-821,共10页
BACKGROUND Psychological problems are becoming increasingly prominent among older patients with leukemia,with patients potentially facing stigmatization after diagnosis.However,there is limited research on the stigma ... BACKGROUND Psychological problems are becoming increasingly prominent among older patients with leukemia,with patients potentially facing stigmatization after diagnosis.However,there is limited research on the stigma experienced by these patients and the factors that may contribute to it.AIM To investigate the stigma faced by older patients after being diagnosed with leukemia and to analyze the potential influencing factors.METHODS A retrospective analysis was conducted using clinical data obtained from questionnaire surveys,interviews,and the medical records of older patients with leukemia admitted to the Hengyang Medical School from June 2020 to June 2023.The data obtained included participants’basic demographic information,medical history,leukemia type,family history of leukemia,average monthly family income,pension,and tendency to conceal illness.The Chinese versions of the Social Impact Scale(SIS),Perceived Social Support Scale(PSSS),Self-Rating Anxiety Scale(SAS),and Self-Rating Depression Scale(SDS)were used to assess indicators related to stigma,social support,and mental health status.We used Pearson’s correlation coefficient to analyze the strength and direction of the relationship between the scores of each scale,and regression analysis to explore the factors related to the stigma of older patients with leukemia after diagnosis.RESULTS Data from 120 patients with leukemia aged 65-80 years were analyzed.The total score on the SIS and PSSS was 43.60±4.07 and 37.06±2.87,respectively.The SAS score was 58.35±8.32 and the SDS score was 60.58±5.97.The stigma experienced by older leukemia patients was negatively correlated with social support(r=-0.691,P<0.05)and positively correlated with anxiety and depression(r=0.506,0.382,P<0.05).Age,education level,smoking status,average monthly family income,pension,and tendency to conceal illness were significantly associated with the participants’level of stigma(P<0.05).Age,smoking status,social support,anxiety,and depression were predictive factors of stigmatization among older leukemia patients after diagnosis(all P<0.05),with a coefficient of determination(R2)of 0.644 and an adjusted R2 of 0.607.CONCLUSION Older patients commonly experience stigmatization after being diagnosed with leukemia.Factors such as age,smoking status,social support,and psychological well-being may influence older patients’reported experience of stigma. 展开更多
关键词 Senile leukemia STIGMA Social support ANXIETY DEPRESSION Influencing factors
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Tendency to Avoid Physical Activity and Sport:Associations with Weight Stigma,and Psychological Distress in a Two-Wave Longitudinal Study
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作者 Saffari Mohsen Yi-Ching Lin +7 位作者 Po-Ching Huang Yu-Ting Huang Ru-Yi Huang Chi Hsien Huang Jung-Sheng Chen Wai Chuen Poon Mark D.Griffiths Chung-Ying Lin 《International Journal of Mental Health Promotion》 2024年第8期633-641,共9页
Background:Physical inactivity is a major public health problem worldwide that results in physical and mental health problems.One major issue for physical inactivity is weight stigma(WS),especially perceived WS,which ... Background:Physical inactivity is a major public health problem worldwide that results in physical and mental health problems.One major issue for physical inactivity is weight stigma(WS),especially perceived WS,which could lead to a tendency to avoid physical activity(PA).To better understand the association between perceived WS and PA,knowledge of the likely mediators in this association such as weight bias internalization(WBI)and psychological distress were investigated in the present study.Methods:Using a two-wave longitudinal study and convenient sampling,388 Taiwan residents participants(55%females;mean age=29.7 years[SD±6.3])completed two surveys six months apart.Body mass index(BMI),Perceived Weight Stigma Scale(PWSS),Weight Bias Internalization Scale(WBIS),Depression,Anxiety,Stress Scale(DASS-21),and Tendency to Avoid Physical Activity and Sport Scale(TAPAS)were assessed.Results:A mediation model controlling for age,gender,and BMI with 5000 bootstrapping resamples was performed.Perceived WS exerted significant direct effects on WBI(β=0.25;p<0.001),psychological distress(β=0.15;p=0.003),and tendency to avoid PA(β=0.10;p=0.027);WBI exerted a significant direct effect on tendency to avoid PA(β=0.47;p<0.001).Standardized indirect effects of WBI and psychological distress on the association between perceived WS and tendency to avoid PA were 0.12 and 0.01,respectively.Conclusion:Given the direct association of perceived WS on the tendency to avoid PA and the mediating role of WBI in this association,interventions addressing perceived WS and WBI may contribute to promoting PA.Therefore,health interventionists(both when planning and executing PA programs)need to consider weight stigmawhen encouraging physical activity. 展开更多
关键词 Mediation model physical activity psychological distress weight stigma young adults
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Effects of Alexithymia to Stigma of Patients with Lymphedema
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作者 Qiaoling Zhong Huizhen Zhang +6 位作者 Liping Zhang Qinghua Luo Huiting Zhang Feng Liu Hailin Tang Na Li Lijuan Zhang 《Journal of Cancer Therapy》 2024年第4期201-211,共11页
BACKGROUND: Secondary lymphedema is one of the common complications after malignant tumor surgery. It is a chronic and complex disease. Once lymphedema occurs, there will be discomfort such as limb swelling, pain, num... BACKGROUND: Secondary lymphedema is one of the common complications after malignant tumor surgery. It is a chronic and complex disease. Once lymphedema occurs, there will be discomfort such as limb swelling, pain, numbness and tension, which will eventually lead to changes in the appearance of the affected limb and will seriously affect the quality of life and require lifelong treatment and psychosocial support. This study investigated the current situation of stigma and alexithymia in patients with lymphedema, and discussed the impact of alexithymia on stigma in patients with lymphedema. AIMS: To understand the current situation of stigma and alexithymia in patients with lymphedema, and to analyze the influence of alexithymia on stigma. METHODS: 195 patients with lymphedema in a hospital were selected by convenient sampling. General information questionnaire, Toronto Alexithymia Scale and social impact scale were used to investigate respectively, to study the general situation, stigma and alexithymia of the respondents. RESULTS: The results showed that the total score of stigma in 195 patients with lymphedema was (60.36 ± 11.08), and the total score of alexithymia was (56.53 ± 8.43). Multiple linear regression analysis showed that alexithymia and family relationship were the influencing factors of stigma in patients with lymphedema. CONCLUSIONS: The patients with lymphedema have obvious stigma, and alexithymia and family relationship are the influencing factors. 展开更多
关键词 ALEXITHYMIA LYMPHEDEMA STIGMA Influence Factor
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Relationship between Stigma and Marital Satisfaction in Cervical Cancer Patients
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作者 Shanshan He Wei Xing Jie Mao 《Journal of Biosciences and Medicines》 2024年第10期390-399,共10页
Objective: To investigate the status quo of stigma and marital satisfaction of patients with cervical cancer, and analyze the correlation between them, to provide a reference for making intervention plans for patients... Objective: To investigate the status quo of stigma and marital satisfaction of patients with cervical cancer, and analyze the correlation between them, to provide a reference for making intervention plans for patients with cervical cancer. Methods: 216 patients in a third-class first-class hospital in Zhengzhou were investigated by convenient sampling method, using a general information questionnaire, social impact scale, and Olson marriage quality questionnaire. Results: The total stigma score of cervical cancer patients was 73.00 (62.00, 76.00), which was high. The total marital satisfaction score is 36.00 (26.00, 38.00), in the middle level. There was a negative correlation between marital satisfaction and stigma (P Conclusion: The stigma of patients with cervical cancer is at a high level, and their marital satisfaction is at a medium level. Medical staff should give them health education through various channels, pay attention to low-income patients, improve marital satisfaction, and reduce stigma. 展开更多
关键词 Cervical Cancer STIGMA Marital Satisfaction CORRELATION
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Mediating role of fear of progression between sensory processing sensitivity and stigma in lung cancer patients:a cross-sectional study
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作者 Nan Shen Jiao Yang +5 位作者 Qian-Rong Yang Ruo-Jia Wu Jing Yang Kai-Wen Dong Yan-Qiu Zhao Xiu-Mei Yang 《Frontiers of Nursing》 2024年第4期373-378,共6页
Objective:To explore the association of sensory processing sensitivity(SPS)and stigma as well as the mediating role of fear of progression(FoP)in lung cancer patients.Methods:Two hundred and forty-two lung cancer pati... Objective:To explore the association of sensory processing sensitivity(SPS)and stigma as well as the mediating role of fear of progression(FoP)in lung cancer patients.Methods:Two hundred and forty-two lung cancer patients completed a self-reported questionnaire,which included the highly sensitive person scale(HSPS),fear of progression questionnaire-short form(FoP-Q-SF),and the Cataldo Lung Cancer Stigma Scale(CLCSS).Results:CLCSS was positively correlated with FoP(Pearson correlation=0.217,P<0.01)and HSPS(Pearson correlation=0.187,P<0.01),FoP was positively correlated with HSPS(Pearson correlation=0.199,P<0.01).FoP played a mediating role between SPS and stigma(a×b=0.025,95%confidence intervals[CI][0.004,0.054]),and the proportion of mediating effect(ab/c)was 21%(ab=0.025,c=0.120).Conclusions:Patients with higher SPS reported higher level of stigma,and FoP has a mediating role between SPS and stigma.Our discussion deemed that psychological intervention may help higher SPS patients reduce the harm of FoP and further reduce stigma. 展开更多
关键词 fear of progression lung cancer mediating role sensory processing sensitivity STIGMA
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Analysis of the Current Situation of Stigma Among Elderly Hemodialysis Patients and its Influencing Factors
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作者 Tingting He Heng Zhang +3 位作者 Yu Ai Juan Hu Xiaoying Yu Huan Yang 《Journal of Clinical and Nursing Research》 2024年第2期92-97,共6页
Objective:To understand the current situation of stigma among elderly hemodialysis patients and to analyze its influencing factors.Methods:Convenience sampling was used to select 242 elderly patients undergoing hemodi... Objective:To understand the current situation of stigma among elderly hemodialysis patients and to analyze its influencing factors.Methods:Convenience sampling was used to select 242 elderly patients undergoing hemodialysis in one of the two tertiary hospitals in Mianyang City.The survey was carried out from December 2022 to March 2023,with the Basic Information Questionnaire,the Social Influence Scale,and the Collaborative Social Support Scale.All influencing factors were analyzed by correlation analysis,univariate analysis,and multiple linear regression.Results:The average stigma score among elderly hemodialysis patients was 72.94±9.58,and the influencing factors of stigma among elderly hemodialysis patients were determined to be social support and economic status(P<0.05).Conclusion:The occurrence of stigma among elderly hemodialysis patients was at a moderate to high level,and the influencing factors were mainly economic status and social support.To reduce the occurrence of stigma in elderly hemodialysis patients,appropriate economic support from families and social support from medical personnel are needed. 展开更多
关键词 STIGMA HEMODIALYSIS Influencing factors
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Analysis of the Current Status and Influencing Factors of Family Members’Collateral Stigma in Schizophrenia Patients
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作者 Min Li 《Journal of Clinical and Nursing Research》 2024年第4期50-55,共6页
Objective: To investigate the associated collateral stigma of the family members of schizophrenia patients and analyze its current status and influencing factors. Methods: The Link Depreciation-Discrimination Percepti... Objective: To investigate the associated collateral stigma of the family members of schizophrenia patients and analyze its current status and influencing factors. Methods: The Link Depreciation-Discrimination Perception Scale was used to investigate the status quo of the associated stigma of the family members of 169 schizophrenia patients diagnosed in 4 hospitals in a certain province. The results of the investigation were analyzed and summarized. Results: The detection rate of stigma associated with the family members of schizophrenia patients was 72.78%, with a score of 28.41 ± 3.92 points. The main influencing factors were the family member’s education level, the patient’s illness duration, the family member’s occupation, and the family-patient relationship. Conclusion: The detection rate of stigma associated with schizophrenia was relatively high. This requires increased attention and appropriate nursing intervention. 展开更多
关键词 Patients with schizophrenia Family members’associated disease stigma Status survey
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Observation on Flowering Habit of Reverse Genic Sterile Rice FHS 被引量:7
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作者 王会峰 欧阳艳蓉 黄群策 《Agricultural Science & Technology》 CAS 2009年第3期81-83,共3页
[Objective] This study was to use reverse genic male sterile FHS better in field production. [Method] Low energy nitrogen ion beam was taken as a mutation source to conduct mutagenic treatment for indica rice 99-02 an... [Objective] This study was to use reverse genic male sterile FHS better in field production. [Method] Low energy nitrogen ion beam was taken as a mutation source to conduct mutagenic treatment for indica rice 99-02 and the mutant FHS with special fertility that was isolated from their offspring. Some characteristics such as flowering habit and stigma exsertion rate of FHS were observed in this experiment. [Result] The reverse genic sterile rice FHS had an obvious peak flowering stage from 10:00 to 10:30, while the second peak flowering was from August 5 to August 10. Compared with PA64S, FHS flowered early and its flowering time was concentrated, showing that it is for seed propagation. The stigma exsertion rate of FHS was 85.8% and low exsertion rate was good for the purity of seed. [Conclusion] The reverse genic sterile rice FHS had good value in use, besides, it could also be used as comparison material for studying fertility alternation mechanism of photoperiod sensitive genic male sterile rice. 展开更多
关键词 RICE Genic sterile Flowering habit Stigma exsertion rate
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Correlation between Stigma Characteristics and Outcrossing Rate of Five Photo-thermo Sensitive Genic Male Sterile(PTGMS) Rice Lines 被引量:2
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作者 舒志芬 陈勇 +3 位作者 刘钊 袁露 熊朝 张海清 《Agricultural Science & Technology》 CAS 2016年第3期573-576,583,共5页
[Objective] This study aimed to investigate the correlation between stigma characteristics and outcrossing rate of photo-thermo sensitive genic male sterile(PTGMS) rice lines. [Method] The stigma exsertion rate, sti... [Objective] This study aimed to investigate the correlation between stigma characteristics and outcrossing rate of photo-thermo sensitive genic male sterile(PTGMS) rice lines. [Method] The stigma exsertion rate, stigma size and stigma vitality of Chuang 5S, Yun 9S, Peiai 64 S, P88 S and Y58 S were analyzed. Using R608 as a male parent, outcrossing rate of these five PTGMS lines was determined. [Result]There were differences in stigma exsertion rate, stigma size and stigma vitality among five PTGMS lines. P88 S exhibited the best stigma characteristics and relatively strong stigma vitality, with the stigma exsertion rate of 95.94%, stigma vitality coefficient of 2.71, outcrossing rate of 84.02% in the field. Peiai 64 s had the minimum stigma length(2.41 mm) and stigma width(1.10 mm) and the weakest stigma vitality, with the stigma exsertion rate of 93.04%, outcrossing rate of 65.47%. Yun 9S,Y58 S and Chuang 5S displayed medium stigma characteristics, among which Yun9 S exhibited higher outcrossing rate than other two PTGMS lines. Correlation analysis showed that stigma exsertion rate, stigma length, stigma width, stigma area and stigma volume were significantly correlated to outcrossing rate(P〈0.05), with correlation coefficients of 0.897, 0.934, 0.934, 0.939 and 0.937, respectively. However,there was no significant correlation between stigma vitality coefficient and outcrossing rate. [Conclusion] Based on stigma characteristics of five PTGMS lines, auxiliary pollination measures should be adopted reasonably to save production costs and improve hybrid rice seed yield. 展开更多
关键词 RICE PTGMS lines Stigma characteristics Outcrossing rate
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Pistillate Flower Development and Stigma Receptivity of Euphorbia pulcherrima 被引量:1
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作者 李畅 苏家乐 +2 位作者 刘晓青 陈尚平 何丽斯 《Agricultural Science & Technology》 CAS 2014年第10期1671-1675,共5页
Objective] This study aimed to investigate the relationship between pistil-late flower developmental morphology and stigma receptivity in Euphorbia pulcherri-ma. [Method] One-year-old adult plants of E. pulcherrima cu... Objective] This study aimed to investigate the relationship between pistil-late flower developmental morphology and stigma receptivity in Euphorbia pulcherri-ma. [Method] One-year-old adult plants of E. pulcherrima cultivar ‘Mil enium’ were used as experimental materials to analyze pistil ate flower development process by macroscopic and scanning electron microscope (SEM) observation. Stigma receptivity was detected with benzidine-hydrogen peroxide method and in vivo pol en germina-tion method. [Result] The pistil ate flower development process of E. pulcherrima was consisted of columnar stigma phase, stigma lobe slightly opening phase, Y-shape stigma lobe phase, inverse V-shaped stigma lobe phase and stigma curling phase. Pistil ate flower development and stigma receptivity of E. pulcherrima exhibit-ed certain correlation. The stigma receptive period lasted from stigma lobe slightly opening phase to inverse V-shaped stigma lobe phase; inverse V-shaped stigma lobe phase was appropriate for pol ination, lasting for 3-5 d, with V-shaped stigma lobe and a large amount of exudates on stigma surface according to SEM obser-vation. Stigma receptivity of E. pulcherrima detected with benzidine-hydrogen perox-ide method was consistent with that detected in vivo pol en germination method. [Conclusion] ln breeding practice, the optimal pol ination period of E. pulcherrima can be determined based on the developmental morphology of pistil ate flower. 展开更多
关键词 Euphorbia pulcherrima Pistil ate flower STIGMA Morphological development RECEPTIVITY
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Study on the Flowering Biological Characteristics of Prunus domestica × armeniaca 被引量:1
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作者 魏雅君 李雯雯 +5 位作者 冯贝贝 徐业勇 王明 杨红丽 牛莹莹 廖康 《Agricultural Science & Technology》 CAS 2016年第3期577-583,共7页
[Objective] The aims of this study were to understand the flowering biological characteristics of Prunus domestica ×armeniaca and analyze its differences with other apricot varieties and plum varieties. [Method] ... [Objective] The aims of this study were to understand the flowering biological characteristics of Prunus domestica ×armeniaca and analyze its differences with other apricot varieties and plum varieties. [Method] Taking three varieties of Prunus domestica ×armeniaca as the research object, the phenophase of blooming,morphology characteristics of floral organs and development characteristics of floral organs were observed, pollen amount, pollen viability and stigma receptivity were measured. [Result] The results showed that three varieties of Prunus domestica×armeniaca were in blossom in early April, the florescence were relatively late for 8-12 d comparing with the varieties of apricot, the florescence were relatively similar to the P. domestica L. Morphology characteristics of floral organs of three varieties of Prunus domestica×armeniaca had few differences, were relatively similar to two varieties of plum, and they all had high percent of middle-style and long-style flower.The pollen amount of three varieties of Prunus domestica ×armeniaca had a little differences comparing with two varieties of plum, but were lower than three varieties of apricot. There were some differences in pollen viability, the germination percentage of pollen of ‘Konglongdan' was relatively high, was 51.6%; The pollen amount of ‘Fengweihuanghou' was relatively high, was 880.8 per anther; ‘Weidi' had fewer pollen amount, and the pollen viability was just 2.1%; Three varieties of Prunus domestica ×armeniaca all had strong stigma receptivity on the bloom day, and the stigma receptivity continued exist until the day that 5 days after blooming. [Conclusion] The florescence of three varieties of Prunus domestica ×armeniaca were relatively concentrated, and the rate of pistil abortion was lowest, the variation intensity of stigma receptivity and sustainable time of three varieties of Prunus domestica×armeniaca almost had a little differences comparing with a variety of plum, but slightly more than three varieties of apricot. 展开更多
关键词 Prunus domestica×armeniaca Blooming phenophase Floral organs Pollen viability Stigma receptivity
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The Flowering Biology of Plum(Prunus domestica L.) in Aksu Region, Xinjiang
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作者 冯贝贝 李雯雯 +5 位作者 魏雅君 徐业勇 王明 杨红丽 牛莹莹 廖康 《Agricultural Science & Technology》 CAS 2016年第6期1371-1375,共5页
[Objective] The aim of this study was to understand the flowering biological characteristics of different varieties Prunus domestica L. in Aksu Jiamu Experi- ment Station. [Method] Three varieties of plum as Prunus do... [Objective] The aim of this study was to understand the flowering biological characteristics of different varieties Prunus domestica L. in Aksu Jiamu Experi- ment Station. [Method] Three varieties of plum as Prunus domestica L. cv. 'French', Prunus domestica L. cv. "Victoria' and Prunus domestica L. cv. "Stanley' were the research subjects. The phenophases of blooming, and the morphological and developmental characteristics of floral organs were observed. The amount and viability of pollen and the stigma receptivity were measured. [Result] Three varieties of plum all blossomed in early April, and the florescence had lasted for 9-10 d. The average number of anthers was 28.48%. The average number of pollen grains in each flower was 28 700.0. The pollen germination rate was 27.4%. 86.75% of the flowers were medium-styled or long-styled. There was no significant difference in the petal shape, color, anther number, calyx color, and flower ovary among the three varieties of plum. The stigma receptivity was strongest on the first day of flowering, and then dropped gradually. Therefore, the flowers of plum were manual pollinated on the first day of flowering. The duration time of stigma receptivity of Prunus domestica L. cv. 'Victoria' was longer than the other cultivars, the duration time of stigma receptivity was about 5 d. [Conclusion] The pollen number and pollen germination rate of Prunus domestica L. cv. 'Stanley' were higher than the other cultivars, which be considered the most suitable pollinizer for plum. In contrast, the complete flower rate of Prunus domestica L. cv. 'French' and Prunus domestica L. cv. 'Victoria' was relatively high, but the pollen number and pollen germination rate of Prunus domestica L. cv. 'French' and Prunus domestica L. cv. 'Victoria' were lower than Prunus domestica L. cv. 'Stanley', which are not suitable to use as a pollinizer for plum. 展开更多
关键词 Prunus domestica L. PHENOPHASE Floral organs Pollen viability Stigma receptivity
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Preliminary Discussion on Stigma Vitality of Sterile Line Rong 18A and Its Application in Seed Production
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作者 蔡良俊 徐敬洪 +6 位作者 沈超 袁亚章 张帆 王富全 杨震 赵永康 李治义 《Agricultural Science & Technology》 CAS 2016年第8期1820-1822,1920,共4页
Rong 18A is an Indica three-line sterile line bred with M5B×D Xing B, and has the characteristics of stable sterility, high outcrossing rate, good combining ability and good quality. With Rong 18A as an experimen... Rong 18A is an Indica three-line sterile line bred with M5B×D Xing B, and has the characteristics of stable sterility, high outcrossing rate, good combining ability and good quality. With Rong 18A as an experimental material and Ⅱ-32A, Jin 23A and Gang46 A as the CK materials, a seed setting rate estimation method by daily pollination was used for measuring its stigma vigor, to comparatively analyze the decreasing rates and lasting time of stigma vigor of various materials under natural condition. According to experimental results and combining with field breeding practice, the application of stigma vigor of sterile lines on hybrid rice seed production was discussed. 展开更多
关键词 Hybrid rice Sterile lines Rong 18A Stigma vigor Seed production
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Preliminary Study on Inheritance of Stigma Exertion in Wheat Thermo-photo Sensitive Genic Male Sterile Line
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作者 李宏生 丁明亮 +6 位作者 顾坚 田玉仙 赵红 吴绍柱 杨素梅 杨和仙 李绍祥 《Agricultural Science & Technology》 CAS 2015年第9期1930-1932,1938,共4页
Stigma exertion is one of the key factors for improving the outcrossing ability of wheat thermo-photo sensitive genic male sterile(TPSGMS) line. A DH population derived from K239S/K92 S was constructed to investigat... Stigma exertion is one of the key factors for improving the outcrossing ability of wheat thermo-photo sensitive genic male sterile(TPSGMS) line. A DH population derived from K239S/K92 S was constructed to investigate the inheritance of stigma exertion. K239 S and K92 S are TPSGMS lines with higher and lower stigma exertion rates(SER), respectively. The SERs of parents, reciprocal crosses and the DH population were evaluated for two consecutive years. The results showed that no significant difference was observed in SER between F1 s of K239S/K92 S and K92S/K239 S,implying that stigma exertion was a trait controlled by nuclear gene(s). In the DH population, the segregation of low and high SERs fitted to a ratio of 3 ∶1 by Chisquare test, suggesting that the stigma exertion of K239 S was controlled by one pair of recessive genes. In addition, the effects of temperature and humidity on the expression of stigma exertion were also discussed. 展开更多
关键词 WHEAT Thermo-photo sensitive genic male sterile line Stigma exertion rate Genetic analysis
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Study on Pollen Viability and Stigma Receptivity of Very Later-ripening ‘Dongxing' Apricot
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作者 赵世荣 廖康 +4 位作者 达梦香 徐桂香 徐乐 董胜利 杜润清 《Agricultural Science & Technology》 CAS 2015年第5期954-957,967,共5页
[Objective] The primary aims of this study were to understand the characteristic of floralorgan development in ‘Dongxing', and analyze its differences with other apricot varieties. [Method] Floral organ morphology, ... [Objective] The primary aims of this study were to understand the characteristic of floralorgan development in ‘Dongxing', and analyze its differences with other apricot varieties. [Method] Floral organ morphology, pollen quantity, pollen viability and stigma receptivityof ‘Dongxing' and other apricot varieties were observed and measured. [Result] The ratio between the medium style and long style of‘Dongxing' was 82.4%, and the ratio of pistillode was lower than that in the other apricot varieties. Its pollen quantity was 32 183.2 grains per flower, and was fewer than the others. The pollen germination of ‘Dongxing' in optimum medium(1% agar +15% sucrose + 0.01% boric acid) was 53.0%, i.e. its pollen viability was low. The pollen viability increased at first and then decreased following the period of the bud stage to flowering stage, and pollen viability reached maximum value at the 1st d after flowering. Meanwhile the stored pollen viability continuously decreased with the extension of storage time, and pollen viability of the both vivo or vitro stored was decreased to the half of the maximum value at the 3rdd after flowering or storage.The stigma receptivity of ‘ongxing' enhanced at first then weakened, maximum stigma receptivity was found at the period of 2 h to 4 h after flowering. The optimum time for artificial pollination was 1 h to 8 h after flowering and it was shorter than the other apricot varieties was. [Conclusion] The ratio between the medium style and long style of ‘Dongxing' was higher than the other apricot varieties, while the pollen viability of ‘Dongxing' on the contrary. Its pollen viability reached maximum value at the 1st d after flowering and the optimum time for artificial pollination was1 h to 8h after flowering. 展开更多
关键词 'Dongxing' floral organ Pollen viability Stigma receptivity
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Characterization and Genetic Analysis of a Novel Mutant mst of Rice Defective in Flower Development
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作者 LI Yun XU Pei-zhou +4 位作者 ZHANG Hong-yu FU Shao-hong YANG Jin ZHANG Ru-quan WU Xian-jun 《Rice science》 SCIE 2009年第1期75-78,共4页
A spontaneous mutant with multiple stigmas (msf) was found in an indica rice line 466. The mst mutant exhibits normal at the vegetative development stage and produces normal inflorescence structures. The difference ... A spontaneous mutant with multiple stigmas (msf) was found in an indica rice line 466. The mst mutant exhibits normal at the vegetative development stage and produces normal inflorescence structures. The difference between the mutant and the wild type was observed when the stamen primordium began to develop. In the mst florets, palea and lemma opened, Iodicules were homeotically transformed into palea/lemma-like structures, and stamens were homeotically transformed into carpel-like structures. It looked like multiple stigmas being full of the whole floret. The phenotypic changes of rest were very similar to that of B-like mutant spwl. Compared with other mutants with pistillate morphologies, the severe mstflorets showed that the inner three floral organs were completely changed into palea/lemma-like structures. Moreover, the mutant was female sterile. Occasionally, with the changing environment, one or two stamens were fertile. Genetic analysis indicated that the mutant traits were controlled by a single recessive gene. 展开更多
关键词 RICE flower development multiple stigmas mutant floral organ identity
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