Exogenous Application of Abscisic Acid, Putrescine, or 2,4-Epibrassinolide at Appropriate Concentrations Effectively Alleviate Damage to Tomato Seedlings from Suboptimal Temperature Stress | |
Jiang, Weijie; Bai, Jie; Yang, Xueyong; Yu, Hongjun; Liu, Yanpeng | |
刊名 | HORTTECHNOLOGY |
2012 | |
卷号 | 22期号:1页码:137-144 |
关键词 | plant growth regulators abiotic stresses vegetable production Solanum lycopersicum |
ISSN号 | 1063-0198 |
通讯作者 | Jiang, Weijie |
英文摘要 | The application of plant growth regulators (PGRs), such as abscisic acid (ABA), putrescine (Put), and 2,4-epibrassinolide (EBR), has been shown to enhance a plant's resistance to various abiotic stresses. However, the protective effects of these PGRs on tomato (Solanum lycopersicum) seedlings under suboptimal temperature stress have not yet been evaluated. We also do not know the most effective method of application of PGRs for various tomato cultivars. We studied the effects of three rates of exogenous ABA, Put, or EBR in limiting damage from suboptimal temperature stress on two tomato cultivars, Zhongshu6 (considered sensitive to suboptimal temperatures) and SANTIAM (considered tolerant to suboptimal temperatures). Results showed that application of these PGRs at appropriate concentrations could effectively reduce the decline in the net photosynthetic rate (P-n) and the chlorophyll (Chl) content in leaves caused by suboptimal temperature stress in both 'Zhongshu6' and 'SANTIAM' and could promote an increase in organic osmolyte (proline and soluble sugar) contents and root 2,3,5-triphenyltetrazolium chloride (TTC)-reducing activity for 'Zhongshu6'. However, these effects were inferior on 'SANTIAM'. For both cultivars, the best treatment concentrations are 1 MM ABA, 0.1 mm Put, or 0.02 mu M EBR. Results indicate that in tomato production, exogenous application of ABA, Put, or ERR at appropriate concentrations can effectively limit damage from suboptimal temperature stress. |
学科主题 | Horticulture ; HORTICULTURE |
语种 | 英语 |
出版者 | AMER SOC HORTICULTURAL SCIENCE |
WOS记录号 | WOS:000300862500021 |
内容类型 | 期刊论文 |
源URL | [http://111.203.20.206/handle/2HMLN22E/101111] |
专题 | 蔬菜花卉研究所_栽培与采后技术研究室 |
作者单位 | Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China |
推荐引用方式 GB/T 7714 | Jiang, Weijie,Bai, Jie,Yang, Xueyong,et al. Exogenous Application of Abscisic Acid, Putrescine, or 2,4-Epibrassinolide at Appropriate Concentrations Effectively Alleviate Damage to Tomato Seedlings from Suboptimal Temperature Stress[J]. HORTTECHNOLOGY,2012,22(1):137-144. |
APA | Jiang, Weijie,Bai, Jie,Yang, Xueyong,Yu, Hongjun,&Liu, Yanpeng.(2012).Exogenous Application of Abscisic Acid, Putrescine, or 2,4-Epibrassinolide at Appropriate Concentrations Effectively Alleviate Damage to Tomato Seedlings from Suboptimal Temperature Stress.HORTTECHNOLOGY,22(1),137-144. |
MLA | Jiang, Weijie,et al."Exogenous Application of Abscisic Acid, Putrescine, or 2,4-Epibrassinolide at Appropriate Concentrations Effectively Alleviate Damage to Tomato Seedlings from Suboptimal Temperature Stress".HORTTECHNOLOGY 22.1(2012):137-144. |
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