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卷丹百合生根期镉吸收转运规律初探
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作者 谢进 戴艳娇 +3 位作者 郑思乡 周利 孙梦姗 宋荣 《湖南农业科学》 2024年第5期38-42,共5页
为了探讨卷丹百合根系对镉胁迫的生理响应,以卷丹百合为实验材料,设置不同浓度的水培试验,比较不同镉浓度处理的卷丹百合生根期根部镉吸收、转运规律,并比较根系蛋白质表达的差异。结果表明:在镉胁迫下,卷丹百合鳞茎生根期没有富集镉的... 为了探讨卷丹百合根系对镉胁迫的生理响应,以卷丹百合为实验材料,设置不同浓度的水培试验,比较不同镉浓度处理的卷丹百合生根期根部镉吸收、转运规律,并比较根系蛋白质表达的差异。结果表明:在镉胁迫下,卷丹百合鳞茎生根期没有富集镉的特性,而卷丹百合根在20μmol/L及以上浓度情况下,富集系数大于1;转运系数分析表明,卷丹百合生根期鳞茎对镉的转运能力很弱,同时卷丹百合根系蛋白质发生了差异表达,这些蛋白功能包括与氧化活性相关的过氧化物歧化酶、与异黄酮分解相关的异黄酮还原酶、多功能调节酶核苷二磷酸激酶b。 展开更多
关键词 卷丹百合 蛋白质
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Comparative Study on Floral Organs and Pollen Characteristics of Different Varieties of Sorrel
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作者 HUANG Jin-qiang sun meng-shan +2 位作者 LI Xin-yao ZOU Jian-feng ZENG Jian-guo 《Agricultural Science & Technology》 CAS 2024年第3期31-37,共7页
The floral organ morphology,pollen morphology,quantity,and viability of Rumex,Rumex hanus F1,Rumex hanus 1,and Rumex hanus 2 were compared and analyzed.The results showed that the longitudinal diameter of petals was n... The floral organ morphology,pollen morphology,quantity,and viability of Rumex,Rumex hanus F1,Rumex hanus 1,and Rumex hanus 2 were compared and analyzed.The results showed that the longitudinal diameter of petals was not significantly different among different varieties of sorrel,and the transverse diameter and corolla diameter showed differences to varying degrees.They all had six stamens and three stigmas.The pollen shape of the four varieties was prolate,and the polar view was trilobated and round.They all had three germinal furrows,and the outer wall of the pollen was decorated with small cavities and spiny patterns,with warty protrusions.The equatorial axis length of pollen of different varieties of sorrel was significantly different(P<0.05).There were no significant differences in pollen amount among different varieties.There were six anthers in a single flower,featuring anther dehiscence.The pollen viability of Rumex hanus 1 was significantly lower than that of the other three varieties(P<0.05).Therefore,through the analysis of the floral organs and morphological characteristics of anthers of sorrel,the varieties of sorrel can be effectively distinguished and identified. 展开更多
关键词 Sorrel Floral organ structure Pollen viability Pollen microstructure
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