排序方式: 共有31条查询结果,搜索用时 15 毫秒
1.
Wang Pei Wang Chun-Mei Gao Li Cui Yan-Nong Yang Hai-Li de Silva Nayana D. G. Ma Qing Bao Ai-Ke Flowers Timothy J. Rowland Owen Wang Suo-Min 《Plant and Soil》2020,448(1-2):603-620
Plant and Soil - Uncontrolled uptake of Na+ is the reason that many species are sensitive to salinity. Suberin is a protective barrier found in the walls of root endodermal cells that appears to be... 相似文献
2.
3.
Mechanisms of sodium uptake by roots of higher plants 总被引:3,自引:0,他引:3
The negative impact of soil salinity on agricultural yields is significant. For agricultural plants, sensitivity to salinity is commonly (but not exclusively) due to the abundance of Na+ in the soil as excess Na+ is toxic to plants. We consider reducing Na+ uptake to be the key, as well as the most efficient approach, to control Na+ accumulation in crop plants and hence to improve their salt resistance. Understanding the mechanism of Na+ uptake by the roots of higher plants is crucial for manipulating salt resistance. Hence, the aim of this review is to highlight and discuss recent advances in our understanding of the mechanisms of Na+ uptake by plant roots at both physiological and molecular levels. We conclude that continued efforts to investigate the mechanisms of root Na+ uptake in higher plants are necessary, especially that of low-affinity Na+ uptake, as it is the means by which sodium enters into plants growing in saline soils. 相似文献
4.
5.
6.
非损伤微测技术在植物生理学研究中的应用及进展 总被引:3,自引:0,他引:3
非损伤微测技术(NMT)是一种选择性微电极技术,可以在不损伤活体样品的情况下获得进出样品的各种离子或分子浓度、流速及其三维运动方向的信息。该技术具有非损伤性、长时间、多电极、高分辨率、高灵敏度、多角度测量等优点,可获得其他技术难以测到的生理特征和生命活动规律,从而在理论研究和应用领域产生实质性的突破。本文综述了近年来NMT在植物营养调控、抗病性、抗盐碱、抗旱、抗冷、抗重金属毒害等方面的应用及其进展,并展望了NMT在植物生理学研究中的应用前景。 相似文献
7.
Liu Hai-Shuang Guo Xiao-Nong Chai Wei-Wei Zhang Rui-Xin Li Pei-Qin Ma Cui-Min Ma Qing Wang Suo-Min 《Journal of Plant Growth Regulation》2022,41(6):2476-2490
Journal of Plant Growth Regulation - Zygophyllum xanthoxylum, a succulent xerophyte, possesses excellent salt tolerance which is closely associated with vacuolar Na+ compartmentation via ZxNHX1.... 相似文献
8.
超表达AVP1基因提高转基因百脉根的耐盐性和抗旱性 总被引:1,自引:0,他引:1
本研究以超表达拟南芥液泡膜H+-焦磷酸酶编码基因AVPI的转基因百脉根为材料,对其耐盐性和抗旱性进行了检测。结果显示:在200mmol·L^-1 NaCl下处理或自然干旱7d后,转基因植株的生长虽然受到抑制,但受抑程度明显低于野生型植株,前者叶片相对含水量比后者分别高18%和14%,净光合速率分别高20%和21%,而MDA含量则分别低35%和27%,相对质膜透性分别低28%和27%。此外,随着盐和干旱胁迫的加剧,与野生型植株相比,转基因植株体内积累了更多Na+、K+和Ca2+。以上结果表明,AVPI基因的超表达可能提高了百脉根细胞Na+区域化能力,既减轻了过量Na+对细胞质的毒害作用,也提高了植株的渗透调节能力,从而增强了百脉根的耐盐性和抗旱性。 相似文献
9.
10.