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A theoretical framework for improved fire suppression by linking management models with smart early fire detection and suppression technologies
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作者 Li Meng Jim O’Hehir +2 位作者 Jing Gao Stefan Peters Anthony Hay 《Journal of Forestry Research》 SCIE EI CAS CSCD 2024年第5期1-13,共13页
Bushfires are devastating to forest managers,owners,residents,and the natural environment.Recent tech-nological advances indicate a potential for faster response times in terms of detecting and suppressing fires.Howev... Bushfires are devastating to forest managers,owners,residents,and the natural environment.Recent tech-nological advances indicate a potential for faster response times in terms of detecting and suppressing fires.However,to date,all these technologies have been applied in isola-tion.This paper introduces the latest fire detection and sup-pression technologies from ground to space.An operations research method was used to assemble these technologies into a theoretical framework for fire detection and suppres-sion.The framework harnesses the advantages of satellite-based,drone,sensor,and human reporting technologies as well as image processing and artificial intelligence machine learning.The study concludes that,if a system is designed to maximise the use of available technologies and carefully adopts them through complementary arrangements,a fire detection and resource suppression system can achieve the ultimate aim:to reduce the risk of fire hazards and the dam-age they may cause. 展开更多
关键词 Forest fire Resource suppression Smart fire detection and suppression system Forest fire management Holistic system
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Assessing Financial Management Practices and Accounting Mechanisms in Agricultural Cooperatives:A Case Study From Nepal
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作者 Chiranjeewee Khadka Ghanshyam Pandey +1 位作者 Arbin Poudel Eva Cudnilova 《Management Studies》 2024年第3期146-171,共26页
The study focuses on assessing the financial management practices and accounting mechanisms in agricultural cooperatives in Tulsipur Sub-Metropolitan,Dang District,Nepal with a focus on understanding their implication... The study focuses on assessing the financial management practices and accounting mechanisms in agricultural cooperatives in Tulsipur Sub-Metropolitan,Dang District,Nepal with a focus on understanding their implications for financial performance and organizational effectiveness.The sample size of total cooperatives(n=46)was divided into Savings and Credit Cooperatives(n=18)and Multipurpose Cooperatives(n=28),respectively,with a total number of respondents(n=138)categorized into managing directors,employees,and general members.Using a mixed-methods approach that combines quantitative analysis of financial data with qualitative insights gathered through interviews and surveys,the study emphasizes the importance of modern financial practices,improved reporting mechanisms,and relevant staff training for long-term sustainability.Recommendations include the integration of criteria and evaluation tools to assess cooperative performance,with Hamro Pahunch Multipurpose Cooperative identified as a high performer.Emphasizing the need for robust financial management strategies to navigate the complexity of the agricultural sector,manage risks,and achieve sustainable development,the study notes frequent preparation of financial management reports on a monthly and annual basis,and predominantly annual accounting management.Most cooperatives are using computerized models to present financial positions,but face challenges such as lack of marketing infrastructure,cooperative skills,and technical support.Ultimately,the study advocates for educating policy makers,cooperative leaders,practitioners and stakeholders on the role of effective financial management and accounting in enhancing the resilience,expansion and socio-economic impact of agricultural cooperatives,thereby fostering their long-term prosperity and viability as drivers of rural development and empowerment. 展开更多
关键词 accounting mechanisms agricultural cooperatives financial management evaluation criteria and performance TRANSPARENCY
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Generalized uncertainty principle from long-range kernel effects:The case of the Hawking black hole temperature
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作者 Rami Ahmad El-Nabulsi Waranont Anukool 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第9期153-156,共4页
We prove the existence of an analogy between spatial long-range interactions,which are of the convolution-type introduced in non-relativistic quantum mechanics,and the generalized uncertainty principle predicted from ... We prove the existence of an analogy between spatial long-range interactions,which are of the convolution-type introduced in non-relativistic quantum mechanics,and the generalized uncertainty principle predicted from quantum gravity theories.As an illustration,black hole temperature effects are discussed.It is observed that for specific choices of the moment's kernels,cold black holes may emerge in the theory. 展开更多
关键词 long-range kernel effects generalized uncertainty principle
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Germination of Chenopodium Album in Response to Microwave Plasma Treatment 被引量:4
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作者 Bo■ena ER Vitězslav STRA■K +2 位作者 Michal ER■ Milan TICH■ Petr PATENKA 《Plasma Science and Technology》 SCIE EI CAS CSCD 2008年第4期506-511,共6页
The seeds of Lamb's Quarters (Chenopodium album agg.) were stimulated by low- pressure discharge. The tested seeds were exposed to plasma discharge for different time durations (from 6 minutes to 48 minutes). Ger... The seeds of Lamb's Quarters (Chenopodium album agg.) were stimulated by low- pressure discharge. The tested seeds were exposed to plasma discharge for different time durations (from 6 minutes to 48 minutes). Germination tests were performed under specified laboratory conditions during seven days in five identical and completely independent experiments. Significant differences between the control and plasma-treated seeds were observed. The treated seeds showed structural changes on the surface of the seat coat. They germinated faster and their sprout accretion on the first day of seed germination was longer. Germination rate for the untreated seeds was 15% while it increased approximately three times (max 55%) for seeds treated by plasma from 12 minutes to 48 minutes. 展开更多
关键词 early growth GERMINATION Lamb's Quarters seed enhancement stimulation surfatron discharge
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真菌资源保护需要植物学家和动物学家
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作者 David Minter 林英任 高小明 《安徽农业大学学报》 CAS CSCD 北大核心 2011年第6期821-826,共6页
在现今保护物种的世界上,真菌还是个新成员。保护鸟类和哺乳动物的运动已持续了大约一个世纪之久,而植物成为保护的核心也有数十年了。目前,两栖动物、鱼类和爬行动物都出现了濒危物种。近些年来,对于无脊椎动物也需要保护的认识也有了... 在现今保护物种的世界上,真菌还是个新成员。保护鸟类和哺乳动物的运动已持续了大约一个世纪之久,而植物成为保护的核心也有数十年了。目前,两栖动物、鱼类和爬行动物都出现了濒危物种。近些年来,对于无脊椎动物也需要保护的认识也有了很大提高。不知何故,在这条路上却遗漏了真菌,而且原因似乎并不让人高兴。从18世纪早期开始, 展开更多
关键词 资源保护 植物学家 动物学家 真菌 无脊椎动物 保护物种 哺乳动物 两栖动物
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Attention deficit hyperactivity disorder and comorbidity: A review of literature 被引量:4
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作者 Sundar Gnanavel Pawan Sharma +1 位作者 Pulkit Kaushal Sharafat Hussain 《World Journal of Clinical Cases》 SCIE 2019年第17期2420-2426,共7页
Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder with onset in early childhood.It is a clinically heterogenous condition with comorbidity posing a distinct challenge to diagnosin... Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder with onset in early childhood.It is a clinically heterogenous condition with comorbidity posing a distinct challenge to diagnosing and managing these children and adolescents.This review aims to provide an overview of comorbidity with ADHD including other neurodevelopmental disorders,learning disorders,externalising and internalising disorders.Challenges in screening for,diagnosing and managing comorbidity with ADHD are summarised.Also,methodological challenges and future directions in research in this interesting field are highlighted. 展开更多
关键词 ATTENTION DEFICIT HYPERACTIVITY DISORDER COMORBIDITY REVIEW
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Behaviour of cranes(family Gruidae)mirrors their phylogenetic relationships
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作者 Nela Nováková Jan Robovský 《Avian Research》 CSCD 2021年第3期285-295,共11页
Background:The behavioural repertoire of every species evolved over time and its evolution can be traced through the phylogenetic relationships in distinct groups.Cranes(family Gruidae)represent a small,old,monophylet... Background:The behavioural repertoire of every species evolved over time and its evolution can be traced through the phylogenetic relationships in distinct groups.Cranes(family Gruidae)represent a small,old,monophyletic group with well-corroborated phylogenetic relationships on the species level,and at the same time they exhibit a complex and well-described behavioural repertoire.Methods:We therefore investigated the evolution of behavioural traits of cranes in a phylogenetic context using several phylogenetic approaches and two types of trait scoring.The cranes exhibit more than a hundred behavioural displays,almost one third of which may be phylogenetically informative.Results:More than half of the analysed traits carry a significant phylogenetic signal.The ancestor of cranes already exhibited a quite complex behavioural repertoire,which remained unchanged in Balearicinae but altered greatly in Gruinae,specifically by the shedding of traits rather than their creation.Trait scoring has an influence on results within the Gruinae,primarily in genera Bugeranus and Anthropoides.Conclusions:Albeit the behavioural traits alone cannot be used for resolving species-level relationships within the Gruidae,when optimized on molecular tree,they can help us to detect interesting evolutionary transformations of behaviour repertoire within Gruiformes.The Limpkin(Aramus guarauna)seems to be the most enigmatic species and should be studied in detail for its behavioural repertoire,which may include some precursors of crane behavioural traits. 展开更多
关键词 Ancestral behavioural repertoire Evolution Phylogenetic signal
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Photodegradation of Atorvastatin under Light Conditions Relevant to Natural Waters and Photoproducts Toxicity Assessment
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作者 Šárka Klementová Pavla Petráňová Pavla Fojtíková 《Open Journal of Applied Sciences》 2021年第4期489-499,共11页
Atorvastatin, widely prescribed hypolipidemic drug, undergoes rapid, probably self-sensitised, degradation (less than 20% left after 25-minute irradiation) if irradiated by wavelengths 300 - 350 nm in aqueous solution... Atorvastatin, widely prescribed hypolipidemic drug, undergoes rapid, probably self-sensitised, degradation (less than 20% left after 25-minute irradiation) if irradiated by wavelengths 300 - 350 nm in aqueous solution. When ferric ions are added to the reaction mixture, the degradation follows first order kinetics with a rate constant of 0.130 min<sup><span style="white-space:nowrap;"><span style="white-space:nowrap;">&#8722;</span></span>1</sup>. Photochemical degradation may thus represent a significant way of environmental transformation of this pharmaceutical. Toxicity testing of atorvastatin and atorvastatin photoproducts performed on the water plant <em>Lemna minor</em> revealed that atorvastatin itself exhibited no observable toxic effect measured as leaf area growth inhibition, while the photoproducts showed a significant toxicity to the plant, which shows the extreme importance of investigating not only toxicity of drugs themselves on aquatic organisms but also effects of their transformation products. 展开更多
关键词 Atoravastatin PHOTODEGRADATION Atorvastatin and Photoproducts Toxicity Lemna minor
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包装产业的印前工作流程——从设计阶段贯穿到分色胶片或印版输出
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《印刷杂志》 2003年第4期95-102,共8页
包装产品印前阶段的复杂性部分上是因为该工艺在处理的过程中涉及到许多成员.清楚地认识每个成员所负责的内容及其需要达到的效果,是为正确地理解印前阶段的必要准备.
关键词 包装印刷 印前工作流程 纸盒 设计
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Microbiotechnological Stimulation of the Root Systems of Woody Plants within the Scope of the Revitalization of Mining Works
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作者 Miloslav Soch Bohuslav Vostoupal +2 位作者 Jaroslava Vráblíková Petr Vráblík Jana St'astná 《Agricultural Sciences》 2018年第12期1529-1537,共9页
In general, the conditions for the growth of vegetation in former mining works are unfavorable, particularly in locations where the rooting process or inadequate functional contact by the root system with underground ... In general, the conditions for the growth of vegetation in former mining works are unfavorable, particularly in locations where the rooting process or inadequate functional contact by the root system with underground water, creates vegetative problems. For the process of the revitalization of the disrupted areas to be successful, the correct rooting of woody plants is essential for starting the development of the vegetation, and directing it towards greater biodiversity. The addition of bio alginates, whose basic raw component is selected seaweed, to the soil ensures the stimulation of the root system, thereby significantly increasing the likelihood of the plants surviving. The article monitors, in detail, the effect of the application of these bio alginates, and the subsequent response of the plants in growth patterns. 展开更多
关键词 Bioalginates Soil Root System Abandoned Mining Works RECLAMATION
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Behavioral flexibility and novel environments:integrating currentpers pectives for future directions
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作者 Valeria Mazza Vedrana Šlipogor 《Current Zoology》 SCIE CAS CSCD 2024年第3期304-309,共6页
Individuals in the process of encountering a novel environment face several new selective pressures that can lead to changes in phenotypes,which provides an exciting opportunity to study microevolutionary processes.En... Individuals in the process of encountering a novel environment face several new selective pressures that can lead to changes in phenotypes,which provides an exciting opportunity to study microevolutionary processes.Environmental novelty encompasses a variety of changes in the socioecological world of an individual,as well as situations for which animals lack eco-evolutionary experience(e.g.,Saul et al.2013;Heger et al.2019). 展开更多
关键词 environments EVOLUTIONARY PROCESSES
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The neglect of nonnative orthopterans as potential invaders:A call for awareness
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作者 Anna K.Kulessa Paride Balzani +4 位作者 Ismael Soto Antonín Kouba David Renault Ali Serhan Tarkan Phillip J.Haubrock 《Insect Science》 SCIE CAS CSCD 2024年第4期994-1000,共7页
Despite the potential ecological and economic impacts of invasive species,there is a dearth of data on the presence,impacts,and management implications of potentially invasive Orthoptera species.This lack of research ... Despite the potential ecological and economic impacts of invasive species,there is a dearth of data on the presence,impacts,and management implications of potentially invasive Orthoptera species.This lack of research and inconsistent data,including risk screenings and impact assessments,is especially evident in Europe.Consequently,assessing the status,distribution,and potential threats of nonnative Orthoptera in Europe remains challenging,impeding the development of effective management strategies.To address this gap,we call for increased efforts to collect and curate data on non-native and possibly invasive Orthoptera in Europe.Such efforts will improve our understanding of this order’s invasion dynamics,facilitate the identification of priority areas for conservation,and support the development of effective management policies and preventive measures. 展开更多
关键词 costs CRICKET DAMAGES GRASSHOPPER impact research
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Towards disentangling the classification of freshwater fish trypanosomes 被引量:1
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作者 Peng Zhang Jie Liu +4 位作者 Xiao‑Ming Yin Jun‑Yu Zhou Julius Lukeš Zhao‑Rong Lun De-Hua Lai 《Marine Life Science & Technology》 SCIE CSCD 2023年第4期551-563,共13页
Currently,new species of freshwater fish trypanosomes,which are economically important parasites,are being described based on subjectively selected features,i.e.,their cell morphology and the host species.We have perf... Currently,new species of freshwater fish trypanosomes,which are economically important parasites,are being described based on subjectively selected features,i.e.,their cell morphology and the host species.We have performed detailed phylogenetic and haplotype diversity analyses of all 18S rRNA genes available for freshwater fish trypanosomes,including the newly obtained sequences of Trypanosoma carassii and Trypanosoma danilewskyi.Based on a sequence similarity of 99.5%,we divide these trypanosomes into 15 operational taxonomic units,and propose three nominal scenarios for distinguishing T.carassii and other aquatic trypanosomes.We find evidences for the existence of a low number of freshwater fish trypanosomes,with T.carassii having the widest geographic and host ranges.Our analyses support the existence of an umbrella complex composed of T.carassii and two sister species. 展开更多
关键词 Freshwaterfish trypanosomes 18S rRNA MORPHOLOGY PHYLOGENY
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Comparison of carotid endarterectomy and repeated carotid angioplasty and stenting for in-stent restenosis(CERCAS trial):a randomised study
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作者 Tomáš Hrbáč Jiří Fiedler +7 位作者 Václav Procházka Tomáš Jonszta Martin Roubec David Pakizer Daniel Václavík David Netuka Tomáš Heryán David Školoudík 《Stroke & Vascular Neurology》 SCIE CSCD 2023年第5期399-404,共6页
Background and aim In-stent restenosis(ISR)belongs to an infrequent but potentially serious complication after carotid angioplasty and stenting in patients with severe carotid stenosis.Some of these patients might be ... Background and aim In-stent restenosis(ISR)belongs to an infrequent but potentially serious complication after carotid angioplasty and stenting in patients with severe carotid stenosis.Some of these patients might be contraindicated to repeat percutaneous transluminal angioplasty with or without stenting(rePTA/S).The purpose of the study is to compare the safety and effectiveness of carotid endarterectomy with stent removal(CEASR)and rePTA/S in patients with carotid ISR.Methods Consecutive patients with carotid ISR(≥80%)were randomly allocated to the CEASR or rePTA/S group.The incidence of restenosis after intervention,stroke,transient ischaemic attack myocardial infarction and death 30 days and 1 year after intervention and restenosis 1 year after intervention between patients in CEASR and rePTA/S groups were statistically evaluated.Results A total of 31 patients were included in the study;14 patients(9 males;mean age 66.3±6.6 years)were allocated to CEASR and 17 patients(10 males;mean age 68.8±5.6 years)to the rePTA/S group.The implanted stent in carotid restenosis was successfully removed in all patients in the CEASR group.No clinical vascular event was recorded periproceduraly,30 days and 1 year after intervention in both groups.Only one patient in the CEASR group had asymptomatic occlusion of the intervened carotid artery within 30 days and one patient died in the rePTA/S group within 1 year after intervention.Restenosis after intervention was significantly greater in the rePTA/S group(mean 20.9%)than in the CEASR group(mean 0%,p=0.04),but all stenoses were<50%.Incidence of 1-year restenosis that was≥70%did not differ between the rePTA/S and CEASR groups(4 vs 1 patient;p=0.233).Conclusion CEASR seems to be effective and save procedures for patients with carotid ISR and might be considered as a treatment option. 展开更多
关键词 CAROTID RESTENOSIS ANGIOPLASTY
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Taxonomy and phylogeny of the brown-rot fungi:Fomitopsis and its related genera 被引量:5
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作者 Mei-Ling Han Yuan-Yuan Chen +4 位作者 Lu-Lu Shen Jie Song Josef Vlasák Yu-Cheng Dai Bao-Kai Cui 《Fungal Diversity》 SCIE 2016年第5期343-373,共31页
Taxonomic and phylogenetic studies on the brown-rot fungi,Fomitopsis and its related genera,are carried out.On the basis of morphological characters and phylogenetic evidence of DNA sequences of multiple loci includin... Taxonomic and phylogenetic studies on the brown-rot fungi,Fomitopsis and its related genera,are carried out.On the basis of morphological characters and phylogenetic evidence of DNA sequences of multiple loci including the internal transcribed spacer(ITS)regions,the large subunit nuclear ribosomal RNA gene(nLSU),the small subunit nuclear ribosomal RNA gene(nSSU),the small subunit mitochondrial rRNA gene sequences(mtSSU),the translation elongation factor 1-αgene(tef1)and the second subunit of RNA polymerase II(rpb2),six new genera,Fragifomes,Niveoporofomes,Piptoporellus,Rhodofomitopsis,Rubellofomes and Ungulidaedalea are established.Four new species,Buglossoporus eucalypticola,Daedalea allantoidea,Piptoporellus hainanensis and P.triqueter are descibed from China.Illustrated descriptions of the novel species are provided.Identification keys to Fomitopsis and its related genera,as well as keys to the species of each genus are provided. 展开更多
关键词 Fomitopsidaceae Multi-marker analysis PHYLOGENY POLYPORE SYSTEMATICS
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Phylogeny and taxonomy of the Inonotus linteus complex 被引量:7
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作者 Xue-Mei Tian Hai-You Yu +3 位作者 Li-Wei Zhou Cony Decock Josef Vlasák Yu-Cheng Dai 《Fungal Diversity》 SCIE 2013年第1期159-169,共11页
The Inonotus linteus complex comprises several closely related species characterized by pileate basidiomes,a heterogeneous hyphal system with a monomitic context and a dimitic hymenophoral trama.Setae are hymenial and... The Inonotus linteus complex comprises several closely related species characterized by pileate basidiomes,a heterogeneous hyphal system with a monomitic context and a dimitic hymenophoral trama.Setae are hymenial and basidiospores are broadly ellipsoid to subglobose,yellowish and thick-walled.Research to understand this complex have been particularly noticeable in East Asia.In the present paper,the complex was studied at a larger scale,including samples from Mesoamerica.Inonotus linteus,an epitype of this species being designated here,is circumscribed as a narrow sense based on morphological and phylogenetic data,and this has lead to delimiting a new species from Mesoamerica,viz.I.cubensis,and provides evidence for two additional species,I.alpinus and I.zonatus,from East Asia.Phylogenetic analyses of ITS sequences also confirmed the status of I.baumii,I.linteus,I.lonicericola,I.lonicerinus,I.vaninii,I.sanghuang,I.weigelae and I.weirianus as distinct taxa,while I.tenuicontextus is considered to be a synonym of I.weigelae.A key to 11 species in the complex is provided. 展开更多
关键词 China HYMENOCHAETACEAE ITS PHELLINUS PHYLOGENY
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甲虫群落构建研究进展
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作者 姬俏俏 Chen Ting-Wen 吴东辉 《生态学杂志》 CAS CSCD 北大核心 2022年第1期174-181,共8页
甲虫作为节肢动物中一个庞大的类群,具有繁简各异的生活习性,在生态系统中发挥极为重要的作用。甲虫群落构建是群落生态研究的重要内容之一,可揭示不同生态环境下生物多样性的形成与维持机制。现阶段对甲虫群落构建的研究主要通过物种... 甲虫作为节肢动物中一个庞大的类群,具有繁简各异的生活习性,在生态系统中发挥极为重要的作用。甲虫群落构建是群落生态研究的重要内容之一,可揭示不同生态环境下生物多样性的形成与维持机制。现阶段对甲虫群落构建的研究主要通过物种的功能性状,或将系统发育结构与物种功能性状相结合的方法,对群落构建过程进行解析,用以判断主要的驱动因素,包含生物间的相互作用、环境因子及历史作用等。本文回顾了甲虫群落构建近些年的研究,介绍主要研究内容和研究类群,整理出目前常见的研究方法。结合已有理论和假说,归纳影响甲虫群落构建过程的因素,以增加学界对甲虫群落生态的认识,推动动物群落构建研究的发展。 展开更多
关键词 群落生态 功能性状 系统发育 生态位理论 中性理论
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Global diversity and taxonomy of the Inonotus linteus complex(Hymenochaetales,Basidiomycota):Sanghuangporus gen.nov.,Tropicoporus excentrodendri and T.guanacastensis gen.et spp.nov.,and 17 new combinations 被引量:25
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作者 Li-Wei Zhou Josef Vlasák +5 位作者 Cony Decock Addisu Assefa Jan Stenlid Dawit Abate Sheng-Hua Wu Yu-Cheng Dai 《Fungal Diversity》 SCIE 2016年第2期335-347,共13页
Although Inonotus linteus complex is placed in the genusInonotus,its perennial basidiocarps with a dimitic hyphal system,at least in the trama,distinguish the complex from other species in the genus,which have an annu... Although Inonotus linteus complex is placed in the genusInonotus,its perennial basidiocarps with a dimitic hyphal system,at least in the trama,distinguish the complex from other species in the genus,which have an annual habit and a monomitic hyphal system.The species number of Inonotus linteus complex has been increased in China and tropical America in recent publications.However,whether species in this complex belong to Inonotus has not specifically been addressed.To explore the phylogenetic placement of species of Inonotus linteus complex,we performed a comprehensive study using morphological and phylogenetic data based on global samples.nLSU(53 with 13 new)and ITS(70 with 18 new)datasets were used to produce the phylogenetic results.Taking into consideration the phylogenies inferred from the nLSU and ITS datasets,Inonotus is a polyphyletic genus comprising at least three clades.Clade A,the core Inonotus clade,contains the generic type,Inonotus hispidus,while Clades B and C comprise species from the Inonotus linteus complex.Morphological and phylogenetic evidence indicates that Clades B and C are new genera,and Sanghuangporus and Tropicoporus are introduced in this study.Ten species are transferred to Sanghuangporus and seven to Tropicoporus.Tropicoporus excentrodendri and T.guanacastensis spp.nov.are described,and their distinctive characters are discussed.Keys to the two new genera and the Inonotus sensu stricto,and to species of each new genus are provided. 展开更多
关键词 POLYPORE HYMENOCHAETACEAE Morphology nLSU ITS
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Phylogeny and global diversity of Polyporus group Melanopus (Polyporales, Basidiomycota) 被引量:1
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作者 Yu-Cheng Dai Hui-Jun Xue +3 位作者 Josef Vlasák Mario Rajchenberg Bing Wang Li-Wei Zhou 《Fungal Diversity》 SCIE 2014年第1期133-144,共12页
Polyporus accommodates species with stipitate basidiocarps,a dimitic hyphal system with skeleto-binding hyphae,and hyaline,thin-walled,more or less cylindrical basidiospores.The species of Polyporus are divided into s... Polyporus accommodates species with stipitate basidiocarps,a dimitic hyphal system with skeleto-binding hyphae,and hyaline,thin-walled,more or less cylindrical basidiospores.The species of Polyporus are divided into six morphological groups,of which Melanopus is characterized by coriaceous basidiocarps,thin context and a black cuticle on the stipe.In this study,we explore the phylogeny and species diversity of Polyporus sensu lato focusing on the group Melanopus based on global samples.Our combined ITS and nLSU dataset included 117 collections represented by 117 ITS and 94 nLSU sequences,of which 43 ITS and 37 nLSU sequences were newly generated.The resulting phylogenetic analysis recovered four clades,Favolus,Neofavolus,Melanopus and Polyporellus clades,while several species in the morphological groups Melanopus and Polyporus were outside these clades.Combined with morphological evidence,three new species in the Melanopus clade,Polyporus americanus,P.austroandinus and P.conifericola,are newly described and illustrated,and their distinctive characters are discussed.The illegitimate name Polyporus fraxineus is renamed as Polyporus fraxinicola.The phylogeny and taxonomy of each species in group Melanopus(morphology)or Melanopus clade(phylogeny)and related species are briefly discussed. 展开更多
关键词 ITS nLSU Morphology POLYPORE Group Admirabilis Group Polyporellus
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Simple Traits among Diaspore Weight/Number,Plant Height and Ability of Vegetative Propagation
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作者 Bozena erá 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2008年第12期1563-1569,共7页
Several expected correlations among followed internal plant traits were confirmed using the dataset of 492 herbaceous species from the temporal zone of Central Europe. Average diaspore weight (seed mass), reproducti... Several expected correlations among followed internal plant traits were confirmed using the dataset of 492 herbaceous species from the temporal zone of Central Europe. Average diaspore weight (seed mass), reproductive capacity of population (number of produced diaspores), species height, and ability of lateral spread were the plant traits considered. The evident correlations were confirmed among all investigated traits: (i) The reproductive capacity of population negatively correlated with diaspore weight, plant height, and vegetative propagation. The diaspore weight and their number are closely correlated and co-adapted. (ii) Bigger plant species produce bigger diaspores. These trends are obvious at the inter- and intra-family levels. (iii) Larger plant species showed higher ability to vegetative propagation. 展开更多
关键词 comparison lateral spread REPRODUCTION seed production seed weight strategy trade-off.
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