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NaCl胁迫对续随子离子吸收及荧光特性的影响 被引量:1
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作者 刘冲 王茂文 +5 位作者 丁海荣 朱小梅 邢锦城 赵宝泉 刘兴华 洪立洲 《中国油料作物学报》 CAS CSCD 北大核心 2012年第6期666-670,共5页
以续随子为材料采用温室盆栽法,研究了NaCl胁迫处理对其生长发育、离子分布和叶绿素荧光特性的影响。结果表明:(1)25mmol.L-1NaCl胁迫时续随子幼苗的鲜重、干重和株高比对照略有下降,但不显著;随着NaCl浓度的继续增加,三指标均显著降低... 以续随子为材料采用温室盆栽法,研究了NaCl胁迫处理对其生长发育、离子分布和叶绿素荧光特性的影响。结果表明:(1)25mmol.L-1NaCl胁迫时续随子幼苗的鲜重、干重和株高比对照略有下降,但不显著;随着NaCl浓度的继续增加,三指标均显著降低。(2)盐胁迫影响植物组织的离子分布,Na+浓度增加时,K+、Ca2+和Mg2+浓度均持续下降,K+/Na+、Ca2+/Na+、Mg2+/Na+也急剧下降。(3)NaCl胁迫下,续随子幼苗叶片的初始荧光(Fo)、最大荧光(Fm)、PSⅡ实际光化学效率均降低。但在0~25mmol.L-1NaCl浓度下,Fo、Fm与对照差异不显著。 展开更多
关键词 续随子 盐胁迫 叶绿素荧光 离子分布
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植物抗盐机理的研究进展 被引量:220
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作者 许祥明 叶和春 李国凤 《应用与环境生物学报》 CAS CSCD 2000年第4期379-387,共9页
The responses of plants to salt stress were discussed with respect to the effect of salt stress on phenotypic characters, photosynthesis, and phyto-hormone of plants. So far, many adaptation mechanisms of plants to sa... The responses of plants to salt stress were discussed with respect to the effect of salt stress on phenotypic characters, photosynthesis, and phyto-hormone of plants. So far, many adaptation mechanisms of plants to salt stress are known, among them osmoregulation and compartmentation of inorganic ions were especially related in the context about their roles on adaptation of plants to salt stress. In addition, the progresses of plant tolerance to salt stress mechanism, revealed by molecular biological methods in recent years, were also discussed in this paper. Ref 展开更多
关键词 盐胁迫 光合作用 内源激素 渗透调节 离子的区域
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