干旱区生态环境知识资源中心(Arid): Morpho-physiological, biochemical, and leaf epidermal responses of Desmostachya bipinnata L. in arid habitats

Arid

DOI	10.1080/15324982.2022.2052202
	Morpho-physiological, biochemical, and leaf epidermal responses of Desmostachya bipinnata L. in arid habitats
	Bibi, Safura; Ahmad, Muhammad Sajid Aqeel; Hameed, Mansoor; Ahmad, Farooq; Alvi, Ambreen Khadija; Kamal, Ali
通讯作者	Ahmad, MSA
来源期刊	ARID LAND RESEARCH AND MANAGEMENT
ISSN	1532-4982
EISSN	1532-4990
出版年	2022
卷号	36 期号:4 页码:445-464
英文摘要	The response of morpho-physiological and leaf surface attributes along with antioxidant potential of Desmostachya bipinnata L. populations collected from arid regions with 1.7-3.7 soil moisture % and =22.8-49.6 dS m(-1) ECe was evaluated for adaptability to aridity. Among soil attributes, soil pH, ECe, moisture content, saturation percentage, organic matter, P, Na+, K+, Ca2+, Mg2+, Cl, NH4-N, NO3-N and plant attributes related to the morphology, physiology, antioxidant potential were studied. With increasing aridity root:shoot length ratio (0.1-0.4 cm) increased while average leaf area (12-4 cm(2)), shoot biomass (5-0.5 g), and root biomass (0.8-0.1g) decreased significantly. Parallel to that chlorophyll a (1-0.1 mgg(-1) fresh weight) degradation was observed along with reduced carotenoid content (0.25-0.05 mgg(-1) fresh weight). All other organic osmolytes decreased except for total soluble sugars which increased (0.10-0.15 mu mol g(-1) fresh weight) as the dryness ratio increased and more activities of the antioxidant enzymes APX (0.5-3.5 units mg pro(-1)), CAT (0.1-0.8 units mg pro(-1)), POD (0.02-0.25 units mu g pro(-1)), and SOD (2-7 units mg pro(-1)) were observed. Among soluble cations, Na+ concentration increased (14-24 mg g(-1) dw) in shoot as the aridity increased while shoot K+ (35-15 mgg(-1) dw) and Mg2+ concentration decreased in both root and shoot tissues. Ca2+ concentration increased in root while N and P content decreased. In conclusion, aridity reduced overall vegetative growth but enhanced root growth for better absorption of water from the deeper layers with concurrent silica deposition in epidermal layers for controlling water loss.
英文关键词	Aridity adaptability antioxidants Desmostachya bipinnata mineral nutrients organic osmolytes
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000777900400001
WOS关键词	DROUGHT STRESS ; SALT ; EVAPOTRANSPIRATION ; CHLORIDE ; PROLINE ; SYSTEM ; CARBON ; PLANTS ; ASSAY ; SOIL
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391895
推荐引用方式 GB/T 7714	Bibi, Safura,Ahmad, Muhammad Sajid Aqeel,Hameed, Mansoor,et al. Morpho-physiological, biochemical, and leaf epidermal responses of Desmostachya bipinnata L. in arid habitats[J],2022,36(4):445-464.
APA	Bibi, Safura,Ahmad, Muhammad Sajid Aqeel,Hameed, Mansoor,Ahmad, Farooq,Alvi, Ambreen Khadija,&Kamal, Ali.(2022).Morpho-physiological, biochemical, and leaf epidermal responses of Desmostachya bipinnata L. in arid habitats.ARID LAND RESEARCH AND MANAGEMENT,36(4),445-464.
MLA	Bibi, Safura,et al."Morpho-physiological, biochemical, and leaf epidermal responses of Desmostachya bipinnata L. in arid habitats".ARID LAND RESEARCH AND MANAGEMENT 36.4(2022):445-464.