干旱区生态环境知识资源中心(Arid): Atlas of leaf surface micromorphology in Aloe L. (Asphodelaceae) from the Horn of Africa region

Arid

DOI	10.11646/phytotaxa.524.4.3
	Atlas of leaf surface micromorphology in Aloe L. (Asphodelaceae) from the Horn of Africa region
	Fentaw, Eshetu; Elliott, Kelda F. V. A.; Demissew, Sebsebe; Cutler, David; Grace, Olwen M.
通讯作者	Fentaw, E (corresponding author), Royal Bot Gardens, Richmond TW9 3AE, Surrey, England. ; Fentaw, E (corresponding author), Addis Ababa Univ, Natl Herbarium, Dept Plant Biol & Biodivers Management, POB 3434, Addis Ababa, Ethiopia. ; Fentaw, E (corresponding author), Addis Ababa Univ, Dept Microbial Cellular & Mol Biol, POB 1176, Addis Ababa, Ethiopia.
来源期刊	PHYTOTAXA
ISSN	1179-3155
EISSN	1179-3163
出版年	2021
卷号	524 期号:4 页码:261-282
英文摘要	The confident identification to species rank of fragmentary and sterile plant material is often challenged by the absence of diagnostic characters, which are present in intact specimens, reproductive parts, and plants in habitat. Here, we consider leaf surface micromorphology for the identification of the genus Aloe in the Horn of Africa region. Primary and secondary sculp-turing of the leaf epidermis and stomata were characterised from SEM micrographs of 35 taxa representing 31 species of Aloe (Asphodelaceae subfam. Alooideae). Detailed comparison revealed that leaf surface characters are conserved between species and within-species variation is modest. Closely related taxa in the Aloe adigratana-A. camperi-A. sinana species complex could be distinguished using leaf surface micromorphology alone. These characters also guide species delimita-tion; in the species complex including A. schoelleri and A. steudneri, a narrow circumscription is supported, whereas with A. ankoberensis and A. pulcherrima, a wider circumscription merits consideration. The observed trait combinations are char-acteristic of plants in xeric environments, with the most notable feature being stomata that are most deeply sunken in species in more arid habitats. Our findings support the use of comparative study of micromorphological leaf surface characters for species identification and taxonomy in the genus Aloe.
英文关键词	cuticular sculpturing leaf epidermis plant identification SEM stomata taxonomy
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000718267800003
WOS关键词	CLASSIFICATION ; FEATURES ; ANATOMY
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/2XILL650/367874
作者单位	[Fentaw, Eshetu; Elliott, Kelda F. V. A.; Cutler, David; Grace, Olwen M.] Royal Bot Gardens, Richmond TW9 3AE, Surrey, England; [Fentaw, Eshetu; Demissew, Sebsebe] Addis Ababa Univ, Natl Herbarium, Dept Plant Biol & Biodivers Management, POB 3434, Addis Ababa, Ethiopia; [Fentaw, Eshetu] Addis Ababa Univ, Dept Microbial Cellular & Mol Biol, POB 1176, Addis Ababa, Ethiopia
推荐引用方式 GB/T 7714	Fentaw, Eshetu,Elliott, Kelda F. V. A.,Demissew, Sebsebe,et al. Atlas of leaf surface micromorphology in Aloe L. (Asphodelaceae) from the Horn of Africa region[J],2021,524(4):261-282.
APA	Fentaw, Eshetu,Elliott, Kelda F. V. A.,Demissew, Sebsebe,Cutler, David,&Grace, Olwen M..(2021).Atlas of leaf surface micromorphology in Aloe L. (Asphodelaceae) from the Horn of Africa region.PHYTOTAXA,524(4),261-282.
MLA	Fentaw, Eshetu,et al."Atlas of leaf surface micromorphology in Aloe L. (Asphodelaceae) from the Horn of Africa region".PHYTOTAXA 524.4(2021):261-282.