盐胁迫下外源Ca2+对花生生长发育、生理及产量的影响

doi:10.13287/j.1001-9332.201703.016

应用生态学报 ›› 2017, Vol. 28 ›› Issue (3): 894-900.doi: 10.13287/j.1001-9332.201703.016

盐胁迫下外源Ca²⁺对花生生长发育、生理及产量的影响

杨莎^1,2, 侯林琳^1,2,3, 郭峰^1,2, 张佳蕾^1,2, 耿耘^1,2, 孟静静^1,2, 李新国^1,2, 万书波^2**

¹山东省农业科学院生物技术研究中心, 济南 250100
²山东省作物遗传改良与生态生理重点实验室, 济南 250100
³青岛农业大学农学与植物保护学院, 山东青岛 266109

收稿日期:2016-07-13 发布日期:2017-03-18
通讯作者: *E-mail: wansb@saas.ac.cn
作者简介:杨莎,女,1984年生,博士,副研究员.主要从事花生抗盐性研究.E-mail:yangsha0904@126.com
基金资助:
本文由国家自然科学基金项目(31571581,31571605)、国家科技支撑计划项目(2014BAD11B04)、山东省自然科学基金项目(ZR2015YL077,BS2015SW020)、山东省农业科学院科技创新重点项目(2014CXZ06-6)、现代农业产业技术体系建设专项资金项目(CARS-14)和山东省农业科学院青年科研基金项目(2014QNM38,2015YQN02)资助

Effects of exogenous Ca²⁺ on growth and development, physiology and yield of peanut under salt stress

YANG Sha^1,2, HOU Lin-lin^1,2,3, GUO Feng^1,2, ZHANG Jia-lei^1,2, GENG Yun^1,2, MENG Jing-jing^1,2,LI Xin-guo^1,2*, WAN Shu-bo^2*

¹Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Ji’nan 250100, China
²Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Ji’nan 250100, China
³College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao 266109, Shandong, China

Received:2016-07-13 Published:2017-03-18
Contact: *E-mail: wansb@saas.ac.cn
Supported by:
This work was supported by the National Natural Science Foundation of China (31571581, 31571605), the Supporting Plan of National Science and Technology of China (2014BAD11B04), the Natural Science Foundation of Shandong Province (ZR2015YL077, BS2015SW020), Major Projects of Science and Technology Innovation in Shandong Academy of Agricultural Sciences (2014CXZ06-6), the Earmarked Fund for Modern Agro-industry Technology Research System (CARS-14), and the Youth Scientific Research Foundation of Shandong Academy of Agricultural Sciences (2014QNM38, 2015YQN02)

摘要/Abstract

摘要： 以‘花育22’为试验材料,使用外源钙[0、6、12 mmol·L^-1的Ca(NO₃)₂]处理盐胁迫(100 mmol·L^-1NaCl)及正常条件下生长的花生,以盆栽方式研究了不同Ca²⁺浓度处理对盐胁迫条件下花生整个生育期的相关生理与产量指标的影响.结果表明: 在100 mmol·L^-1NaCl条件下,施加不同浓度外源钙均可提高超氧化物歧化酶(SOD)、过氧化氢酶(CAT)活性以及叶绿素含量,降低丙二醛(MDA)含量和电解质外渗,增加根系活力,改善植株的农艺性状,增加生物积累量,最终提高花生产量,并且12 mmol·L^-1Ca²⁺处理的效果最显著.通过增强活性氧的清除能力、维持细胞膜的稳定性以及完整性,是外源钙有效缓解花生植株的盐胁迫伤害并最终提高荚果产量的重要原因.

Abstract: Huayu 22, one of the peanut (Arachis hypogaea) cultivars, was used as material in this study. Peanuts, which grew under normal conditions and 100 mmol·L^-1NaCl stress, were treated with 0, 6, 12 mmol·L^-1Ca(NO₃)₂ respectively to elucidate the effects of exogenous calcium on peanut salt tolerance. The effects of different Ca²⁺ concentrations on the physiological indices and yield of peanut during the whole growth period under salt stress were investigated in potted plants, with the aim to provide theoretical basis for the growth and production of peanut in saline soil. The results showed that, under salt stress, the activities of superoxide dismutase (SOD), catalase (CAT), and chlorophyll content increased whereas the MDA content and electrolytes decreased when treated with different concentrations of exogenous calcium. Calcium also improved root activity, biomass, improved agronomic traits, and finally increased peanut yield. Among all the exogenous calcium treatments, the effect of 12 mmol·L^-1Ca²⁺ treatment was the most significant. These results indicated that exogenous calcium could alleviate the salt stress on peanut plants and enhance the yield of pods by enhancing the scavenging ability of active oxygen, maintaining the stability and integrity of cell membrane.

杨莎, 侯林琳, 郭峰, 张佳蕾, 耿耘, 孟静静, 李新国, 万书波. 盐胁迫下外源Ca²⁺对花生生长发育、生理及产量的影响[J]. 应用生态学报, 2017, 28(3): 894-900.

YANG Sha, HOU Lin-lin, GUO Feng, ZHANG Jia-lei, GENG Yun, MENG Jing-jing,LI Xin-guo, WAN Shu-bo. Effects of exogenous Ca²⁺ on growth and development, physiology and yield of peanut under salt stress[J]. Chinese Journal of Applied Ecology, 2017, 28(3): 894-900.

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盐胁迫下外源Ca²⁺对花生生长发育、生理及产量的影响

Effects of exogenous Ca²⁺ on growth and development, physiology and yield of peanut under salt stress

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