干旱区生态环境知识资源中心(Arid): Germinative metabolism and seedling growth of cowpea (Vigna unguiculata) under salt and osmotic stress

Arid

DOI	10.1016/j.sajb.2021.03.019
	Germinative metabolism and seedling growth of cowpea (Vigna unguiculata) under salt and osmotic stress
	Tavares, Davi Santos; Fernandes, Tiago Ethiene Kanarski; Rita, Yohanne Larissa; Rocha, Daiane Cristina; Sant, Bruno Francisco; Gomes, Marcelo Pedrosa
通讯作者	Gomes, MP (corresponding author), Univ Fed Parana, Ctr Politecn Jardim Amer, Setor Ciencias Biol, Dept Bot,Lab Fisiol Plantas Estresse, Av Coronel Francisco H dos Santos 100,PC 19031, BR-81531980 Curitiba, Parana, Brazil.
来源期刊	SOUTH AFRICAN JOURNAL OF BOTANY
ISSN	0254-6299
EISSN	1727-9321
出版年	2021
卷号	139 页码:399-408
英文摘要	Cowpea (Vigna unguiculata) plays a strategic role in arid and semi-arid regions being used in both human food and animal supplementation. Although it is described as moderately tolerant plant to soil salinity, little is known about the salinity tolerance amongst different cultivars and phenological phases. In this study, we investigated the response of seed germination and seedling establishment of V. unguiculata cv. BRS Imponente under conditions of both salt (NaCl) and osmotic stress (Polyethylene glycol 6000; PEG). Although such conditions lead to an accumulation of hydrogen peroxide (H2O2), oxidative damage was observed only in seeds exposed to PEG. The maintenance of H2O2 concentrations in seeds exposed to NaCl, as well as the increase in respiratory activity, were the main mechanisms of tolerance identified in seeds exposed to NaCl. However, although germination was not affected, NaCl concentrations >= 75 mM were phytotoxic, reducing seedling growth. The osmotic component of salinity (PEG) reduced germination (Psi o < -0.123 MPa) and seedling establishment (all osmotic potentials) showing the cultivar sensitive to osmotic stress in the early stages of development. After germination, the BRS Imponente cultivar presented reduced tolerance to salt stress, which limits its performance in soils with high salinity (>= 75 mM of NaCl). (C) 2021 SAAB. Published by Elsevier B.V. All rights reserved.
英文关键词	Abiotic stress Salinity Cellular respiration Oxidative stress
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000662232800002
WOS关键词	MITOCHONDRIAL RESPIRATION ; ANTIOXIDANT SYSTEMS ; SOIL-SALINITY ; TOLERANCE ; MECHANISMS ; EXPRESSION ; MANAGEMENT ; TRANSPORT ; PLANTS ; SEEDS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351798
作者单位	[Tavares, Davi Santos; Fernandes, Tiago Ethiene Kanarski; Rocha, Daiane Cristina; Gomes, Marcelo Pedrosa] Univ Fed Parana, Ctr Politecn Jardim Amer, Setor Ciencias Biol, Dept Bot,Lab Fisiol Plantas Estresse, Av Coronel Francisco H dos Santos 100,PC 19031, BR-81531980 Curitiba, Parana, Brazil; [Tavares, Davi Santos; Rita, Yohanne Larissa; Rocha, Daiane Cristina] Univ Fed Parana, Setor Ciencias Agr, Dept Solos & Engn Agr, Programa Posgrad Ciencia Solo, Rua Funcionarios 1540, BR-80035050 Curitiba, Parana, Brazil; [Sant, Bruno Francisco] Univ Fed Parana, Ctr Politecn Jardim Amer, Setor Ciencias Biol, Lab Biomecan & Anat Vegetal,Dept Bot, Av Coronel Francisco H dos Santos 100,PC 19031, BR-81531980 Curitiba, Parana, Brazil
推荐引用方式 GB/T 7714	Tavares, Davi Santos,Fernandes, Tiago Ethiene Kanarski,Rita, Yohanne Larissa,et al. Germinative metabolism and seedling growth of cowpea (Vigna unguiculata) under salt and osmotic stress[J],2021,139:399-408.
APA	Tavares, Davi Santos,Fernandes, Tiago Ethiene Kanarski,Rita, Yohanne Larissa,Rocha, Daiane Cristina,Sant, Bruno Francisco,&Gomes, Marcelo Pedrosa.(2021).Germinative metabolism and seedling growth of cowpea (Vigna unguiculata) under salt and osmotic stress.SOUTH AFRICAN JOURNAL OF BOTANY,139,399-408.
MLA	Tavares, Davi Santos,et al."Germinative metabolism and seedling growth of cowpea (Vigna unguiculata) under salt and osmotic stress".SOUTH AFRICAN JOURNAL OF BOTANY 139(2021):399-408.