Sensitivity to Abscisic Acid Modulates Positive Interactions between Arabidopsis thaliana Individuals |
| |
Authors: | Hao Zhang Zhuxia Shen Genxuan Wang Xinfeng Dai Qiaoqiao Huang Kefeng Zheng |
| |
Affiliation: | 1.Center for Digital Agricultural Research, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;2.Institution of Agricultural Ecological Research, College of Life Sciences, Zhejiang University, Hangzhou 310058, China |
| |
Abstract: | The ability of abscisic acid (ABA) to modulate positive interactions between Arabidopsis thaliana individuals under salinity stress was investigated using abi1-1 (insensitive to ABA), era1-2 (hypersensitive to ABA) mutant and wild type plants. The results showed that sensitivity to ABA affects relative interaction intensity (RII) between Arabidopsis thaliana individuals. The neighbor removal experiments also confirmed the role of phenotypic responses in linking plant-plant interactions and sensitivity to ABA. For abi1-1 mutants, the absolute value differences between neighbor removal and control of stem length, root length, leaf area, leaf thickness, flower density, above biomass/belowground biomass (A/U), photosynthetic rate, stomatal conductance, leaf water content and water-use efficiency were smaller than those of the wild type, while for era1-2 mutants, these absolute value differences were larger than those of the wild type. Thus, it is suggested that positive interactions between Arabidopsis thaliana individuals are at least partly modulated by different sensitivity to ABA through different physiological and phenotypic plasticity. |
| |
Keywords: | |
本文献已被 万方数据 等数据库收录! |
| 点击此处可从《植物学报(英文版)》浏览原始摘要信息 |
|
点击此处可从《植物学报(英文版)》下载全文 |
|