干旱区生态环境知识资源中心(Arid): Contribution of structural and functional modifications to wide distribution of Bermuda grass Cynodon dactylon (L) Pers

Arid

DOI	10.1016/j.flora.2021.151973
	Contribution of structural and functional modifications to wide distribution of Bermuda grass Cynodon dactylon (L) Pers
	Iqbal, Ummar; Hameed, Mansoor; Ahmad, Farooq; Ahmad, Muhammad Sajid Aqeel; Ashraf, Muhammad; Kaleem, Muhammad; Shah, Syed Mohsan Raza; Irshad, Muhammad
通讯作者	Hameed, M (corresponding author), Univ Agr Faisalabad, Dept Bot, Faisalabad 38040, Pakistan.
来源期刊	FLORA
ISSN	0367-2530
EISSN	1618-0585
出版年	2022
卷号	286
英文摘要	Fifteen ecologically distinct ecotypes of Bermuda grass Cynodon dactylon (L.) Pers. were evaluated for key factors involved in its widespread distribution in different environmental conditions. Ecotypes collected from salt marshes showed better vegetative growth, accumulation of inorganic ions (Na+, K+ and Ca2+), compatible solutes (proline and glycine betaine) and higher activities of antioxidative enzymes (superoxide dismutase, catalase and peroxidase) than all other ecotypes. Increased root and stem radii, sclerification intensity, aerenchyma formation, storage parenchyma (pith and cortex), vascular bundle area and metaxylem area were also observed in the same ecotypes. Notable leaf modifications included development of thicker leaves with intensive sclerification around vascular bundles and wide metaxylem vessels. Ecotypes collected from saline dryland featured large leaf area, increased level of glycine betaine, intensive sclerification and wide leaf xylem vessels. Ecotypes from deserts/semi-deserts exhibited higher soluble proteins and carotenoids, thick epidermis of stem and leaf blade, large cortex and broad metaxylem vessels in root, thick leaf sheaths, well-developed bulliform cells and stomata more oriented towards abaxial surface. Ecotypes collected from river or canal bank possessed high chlorophyll content (chl a, chl b and total chl), epidermal and storage parenchyma cell size, endodermal thickness in root, metaxylem area in stem, sclerification in leaf sheath and increased stomatal density on adaxial leaf surface. In conclusion, ecotypes collected from different habitats exhibited explicit variation in structures (internal modifications) and functions (physiology) due to environmental variability that may contribute to the wide distribution of C. dactylon.
英文关键词	Antioxidative defense Compatible solutes Drought Ecotypic adaptability Plant functional traits Salinity Structural modification
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000725265500001
WOS关键词	GROWTH ; WATER ; LEAF ; TRAITS ; PHOTOSYNTHESIS ; ADAPTATIONS ; STRATEGIES ; TOLERANCE ; DESERT ; PLANTS
WOS类目	Plant Sciences ; Ecology
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374409
作者单位	[Iqbal, Ummar; Hameed, Mansoor; Ahmad, Farooq; Ahmad, Muhammad Sajid Aqeel; Ashraf, Muhammad; Kaleem, Muhammad; Shah, Syed Mohsan Raza; Irshad, Muhammad] Univ Agr Faisalabad, Dept Bot, Faisalabad 38040, Pakistan
推荐引用方式 GB/T 7714	Iqbal, Ummar,Hameed, Mansoor,Ahmad, Farooq,et al. Contribution of structural and functional modifications to wide distribution of Bermuda grass Cynodon dactylon (L) Pers[J],2022,286.
APA	Iqbal, Ummar.,Hameed, Mansoor.,Ahmad, Farooq.,Ahmad, Muhammad Sajid Aqeel.,Ashraf, Muhammad.,...&Irshad, Muhammad.(2022).Contribution of structural and functional modifications to wide distribution of Bermuda grass Cynodon dactylon (L) Pers.FLORA,286.
MLA	Iqbal, Ummar,et al."Contribution of structural and functional modifications to wide distribution of Bermuda grass Cynodon dactylon (L) Pers".FLORA 286(2022).