气候变化领域集成服务门户(CCPortal): Morphophysiological Characterisation of Guayule (Parthenium argentatum A. Gray) in Response to Increasing NaCl Concentrations: Phytomanagement and Phytodesalinisation in Arid and Semiarid Areas

CCPortal

DOI	10.3390/plants13030378
	Morphophysiological Characterisation of Guayule (Parthenium argentatum A. Gray) in Response to Increasing NaCl Concentrations: Phytomanagement and Phytodesalinisation in Arid and Semiarid Areas
	Di Baccio, Daniela; Lorenzi, Aurora; Scartazza, Andrea; Rosellini, Irene; Franchi, Elisabetta; Barbafieri, Meri
发表日期	2024
ISSN	2223-7747
起始页码	13
结束页码	3
卷号	13 期号:3
英文摘要	Water and soil salinity continuously rises due to climate change and irrigation with reused waters. Guayule (Parthenium argentatum A. Gray) is a desert perennial shrub native to northern Mexico and the southwestern United States; it is known worldwide for rubber production and is suitable for cultivation in arid and semiarid regions, such as the Mediterranean. In the present study, we investigated the effects of high and increasing concentrations of sodium chloride (NaCl) on the growth and the morphophysiological and biochemical characteristics of guayule to evaluate its tolerance to salt stress and suitability in phytomanagement and, eventually, the phytodesalinisation of salt-affected areas. Guayule originates from desert areas, but has not been found in salt-affected soils; thus, here, we tested the potential tolerance to salinity of this species, identifying the toxicity threshold and its possible sodium (Na) accumulation capacity. In a hydroponic floating root system, guayule seedlings were subjected to salinity-tolerance tests using increasing NaCl concentrations (from 2.5 to 40 g L-1 and from 43 to 684 mM). The first impairments in leaf morphophysiological traits appeared after adding 15 g L-1 (257 mM) NaCl, but the plants survived up to the hypersaline conditions of 35-40 g L-1 NaCl (about 600 mM). The distribution of major cell cations modulated the high Na content in the leaves, stems and roots; Na bioconcentration and translocation factors were close to one and greater than one, respectively. This is the first study on the morphophysiological and (bio)chemical response of guayule to different high and increasing levels of NaCl, showing the parameters and indices useful for identifying its salt tolerance threshold, adaptative mechanisms and reclamation potential in high-saline environments.
英文关键词	saline and hypersaline conditions; growth analysis; biomass partitioning; photosynthetic pigments; chlorophyll fluorescence; mineral composition; sodium chloride; sodium translocation; sodium concentration factor; phytodesalinisation
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001161099400001
来源期刊	PLANTS-BASEL
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303451
作者单位	Consiglio Nazionale delle Ricerche (CNR); Istituto di Ricerca sugli Ecosistemi Terrestri (IRET); Eni SpA
推荐引用方式 GB/T 7714	Di Baccio, Daniela,Lorenzi, Aurora,Scartazza, Andrea,et al. Morphophysiological Characterisation of Guayule (Parthenium argentatum A. Gray) in Response to Increasing NaCl Concentrations: Phytomanagement and Phytodesalinisation in Arid and Semiarid Areas[J],2024,13(3).
APA	Di Baccio, Daniela,Lorenzi, Aurora,Scartazza, Andrea,Rosellini, Irene,Franchi, Elisabetta,&Barbafieri, Meri.(2024).Morphophysiological Characterisation of Guayule (Parthenium argentatum A. Gray) in Response to Increasing NaCl Concentrations: Phytomanagement and Phytodesalinisation in Arid and Semiarid Areas.PLANTS-BASEL,13(3).
MLA	Di Baccio, Daniela,et al."Morphophysiological Characterisation of Guayule (Parthenium argentatum A. Gray) in Response to Increasing NaCl Concentrations: Phytomanagement and Phytodesalinisation in Arid and Semiarid Areas".PLANTS-BASEL 13.3(2024).