文献类型：期刊文献

中文题名：盐胁迫对4个水稻种质抗逆性生理的影响

英文题名：Effects of Salt Stress on Resistance Physiology of Four Rice Germplasms

作者：王旭明[1];麦绮君[1];周鸿凯[1];赵夏夏[1];陈景阳[1];龚茂健[1];杨善[1];谢平[1];莫俊杰[1];叶昌辉[1]

机构：[1]广东海洋大学农学院,广东湛江524088

年份：2019

卷号：27

期号：2

起止页码：149

中文期刊名：热带亚热带植物学报

外文期刊名：Journal of Tropical and Subtropical Botany

收录：CSTPCD、、北大核心2017、CSCD2019_2020、北大核心、CSCD

基金：国家自然科学基金项目(41073059);广东省高等教育高校创新强校工程项目(GDOU2017052604;2017KZDXM044);广东省农业科技创新及推广项目(2018LM2173);湛江市科技计划项目(2015A03015)资助~~

语种：中文

中文关键词：水稻;盐胁迫;抗逆性;丙二醛;脯氨酸

外文关键词：Rice;Salt Stress;Stress Resistance;Malondialdehyde;Proline

中文摘要：为筛选水稻(Oryza sativa)耐盐种质资源,研究了水稻耐盐相关生理指标。结果表明,盐胁迫下,耐盐种质Pokkali、Fl478、JX99的电导率较低,细胞膜透性较小,叶片叶绿素含量较高,受盐害程度较弱。盐胁迫促进了丙二醛的大量积累,加剧了细胞膜脂过氧化程度,而耐盐种质的丙二醛积累较少,但高盐胁迫下3个耐盐种质的丙二醛含量升高,破坏了细胞膜的完整性。感盐种质R29的临界饱和亏的增幅较大,耐盐种质相对含水量降幅小。应用模糊隶属函数法综合评价,4个水稻种质的耐盐性依次为JX99>Pokkali>FL478>IR29。

外文摘要：In order to select salt-tolerance germplasms of rice(Oryza sativa) germplasms, the physiological indexes related salt tolerance were studied under salt stress. The results showed that the salt tolerance germplasms,such as Pokkali, Fl478 and JX99, had low conductivity, small cell membrane permeability, and high chlorophyll content in leaf, showing weak salt damage. The malondialdehyde content, the degree of cell membrane lipid peroxidation increased under salt stress. The malondialdehyde accumulated in salt-tolerant germplasm less than that in sensitive germplasm, but the malondialdehyde content in three salt-tolerant germplasms also increased under high salt stress, which destroyed the integrity of cell membrane. The critical saturation deficit in sensitive germplasm R29 greatly enhanced, while the relative water content in salt-tolerant germplasms slightly decreased.So, the order of salt tolerance was JX99>Pokkali > FL478> IR29 by fuzzy membership function method.