干旱区生态环境知识资源中心(Arid): Use of Proline to Induce Salt Stress Tolerance in Guava

Arid

DOI	10.3390/plants13141887
	Use of Proline to Induce Salt Stress Tolerance in Guava
	Silva, Smyth Trotsk de Araujo; de Lima, Geovani Soares; de Lima, Vera Lucia Antunes; Nobrega, Jackson Silva; da Silva, Saulo Soares; Ferreira, Jean Telvio Andrade; Dantas, Maila Vieira; Roque, Iara Almeida; Soares, Lauriane Almeida dos Anjos; Torres, Rafaela Aparecida Frazao; de Lacerda, Cassiano Nogueira; Gheyi, Hans Raj; Silva, Luderlandio de Andrade; Sousa, Valeria Fernandes de Oliveira
通讯作者	Nobrega, JS
来源期刊	PLANTS-BASEL
ISSN	2223-7747
出版年	2024
卷号	13 期号:14
英文摘要	Guava is a fruit tree with high potential in the semi-arid region of northeast Brazil. However, qualitative and quantitative water scarcity is a limiting factor for the expansion of irrigated agriculture. Thus, it is necessary to use techniques to mitigate the effects of salt stress, such as foliar application of proline. The objective of this study was to evaluate the effect of foliar application of proline as a mitigator of salt stress effects on the morphophysiology of guava cv. Paluma. The experiment was carried out under field conditions at the 'Rolando Enrique Rivas Castell & oacute;n' Experimental Farm in S & atilde;o Domingos, PB, Brazil, using a randomized block design in a 5 x 4 factorial scheme referring to five levels of electrical conductivity of irrigation water, ECw (0.8, 1.5, 2.2, 2.9, and 3.5 dS m(-1)) and four concentrations of proline (0, 8, 16, and 24 mM). Salinity above 0.8 dS m(-1) compromised gas exchange, photosynthetic pigment synthesis, photochemical efficiency, and growth of guava plants at 360 days after transplanting. Foliar application of proline at a concentration of 24 mM mitigated the effect of salt stress on the relative water content, stomatal conductance, and carotenoid contents in plants irrigated with 3.6 dS m(-1) water. Meanwhile, a proline concentration of up to 18 mM resulted in higher transpiration, CO2 assimilation rate, instantaneous carboxylation efficiency, and absolute growth rate in stem diameter under ECw of 0.8 dS m(-1). Proline concentration of up to 24 mM increased the biosynthesis of photosynthetic pigments and the relative growth rate in stem diameter of guava in the period from 190 to 360 days after transplanting.
英文关键词	Psidium guajava L. water scarcity amino acid
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001278764300001
WOS关键词	PHYSIOLOGICAL-RESPONSES ; WATER IRRIGATION ; GAS-EXCHANGE ; MORPHOPHYSIOLOGY ; SEEDLINGS ; SALINITY ; POMEGRANATE
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/2XILL650/405170
推荐引用方式 GB/T 7714	Silva, Smyth Trotsk de Araujo,de Lima, Geovani Soares,de Lima, Vera Lucia Antunes,et al. Use of Proline to Induce Salt Stress Tolerance in Guava[J],2024,13(14).
APA	Silva, Smyth Trotsk de Araujo.,de Lima, Geovani Soares.,de Lima, Vera Lucia Antunes.,Nobrega, Jackson Silva.,da Silva, Saulo Soares.,...&Sousa, Valeria Fernandes de Oliveira.(2024).Use of Proline to Induce Salt Stress Tolerance in Guava.PLANTS-BASEL,13(14).
MLA	Silva, Smyth Trotsk de Araujo,et al."Use of Proline to Induce Salt Stress Tolerance in Guava".PLANTS-BASEL 13.14(2024).