干旱区生态环境知识资源中心(Arid): Ring-forming plants in the Egyptian deserts

Arid

DOI	10.1016/j.flora.2021.151812
	Ring-forming plants in the Egyptian deserts
	Farahat, Emad A.; Gartner, Holger
通讯作者	Farahat, EA (corresponding author), Helwan Univ, Dept Bot & Microbiol, Fac Sci, Cairo, Egypt.
来源期刊	FLORA
ISSN	0367-2530
EISSN	1618-0585
出版年	2021
卷号	279
英文摘要	The formation of annual growth rings is an imperative requirement for studying the dendroecological potential of plant species. Little is known about the distinctness of growth rings in the wood of desert plants in Africa, particularly in southern Mediterranean regions. To fill this knowledge gap, we collected and anatomically analyzed about 300 perennial desert plants from different areas in Egypt. Out of the 300 studied plant species, 94 species were identified as growth-ring forming plants. They belong to 78 genera and 33 families. Trees, shrubs/ subshrubs, and perennial or short-lived herbs are represented by 7, 55, and 32 species, respectively. Trees and shrubs represent 7.4% and 58.5% of the total, respectively. The distinctness of growth rings in these species was indicated either by the type of wood porosity, fibers, marginal parenchyma layers or by a mixture of these characteristics. Ring porosity, fiber layer, and parenchyma were the main indicators for growth-ring distinctness in 77.7%, 60.6%, and 33.0% of growth-ring forming plants, respectively. We conclude that some of the desert plants form distinct growth rings depending on site conditions, while precipitation is the main driver for its formation. Further studies on the annual rhythm of xylem formation are required to confirm the annual nature of growth rings and potential dendroecological use of these plants.
英文关键词	Growth rings Wood anatomy Desert plants Dendroecology Mediterranean regions
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000649727300005
WOS关键词	TREE-RINGS ; ANATOMY ; GROWTH ; RECONSTRUCTION ; PRECIPITATION ; XYLOGENESIS ; EVERGREEN ; TRAITS ; FOREST
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/2XILL650/350222
作者单位	[Farahat, Emad A.] Helwan Univ, Dept Bot & Microbiol, Fac Sci, Cairo, Egypt; [Gartner, Holger] WSL Swiss Fed Inst Forest Snow & Landscape Res, Zurcherstr 111, CH-8903 Birmensdorf, Switzerland
推荐引用方式 GB/T 7714	Farahat, Emad A.,Gartner, Holger. Ring-forming plants in the Egyptian deserts[J],2021,279.
APA	Farahat, Emad A.,&Gartner, Holger.(2021).Ring-forming plants in the Egyptian deserts.FLORA,279.
MLA	Farahat, Emad A.,et al."Ring-forming plants in the Egyptian deserts".FLORA 279(2021).