干旱区生态环境知识资源中心(Arid): Comparative Analyses of the Self-Sealing Mechanisms in Leaves ofDelosperma cooperiandDelosperma ecklonis(Aizoaceae)

Arid

DOI	10.3390/ijms21165768
	Comparative Analyses of the Self-Sealing Mechanisms in Leaves ofDelosperma cooperiandDelosperma ecklonis(Aizoaceae)
	Hesse, Linnea; Kampowski, Tim; Leupold, Jochen; Caliaro, Sandra; Speck, Thomas; Speck, Olga
通讯作者	Hesse, L
来源期刊	INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
EISSN	1422-0067
出版年	2020
卷号	21 期号:16
英文摘要	Within the Aizoaceae, the genusDelospermaexhibits a vast diversification colonizing various ecological niches in South-Africa and showing evolutionary adaptations to dry habitats that might include rapid self-sealing. Leaves ofDelospermareact to external damage by the bending or contraction of the entire leaf until wound edges are brought into contact. A study of leaf morphology and anatomy, biomechanics of entire leaves and individual tissues and self-sealing kinematics after a ring incision under low and high relative humidity (RH) was carried out comparing the closely related speciesDelosperma cooperiandDelosperma ecklonis, which are indigenous to semi-arid highlands and regions with an oceanic climate, respectively. For both species, the absolute contractions of the examined leaf segments ("apex", "incision", "base") were more pronounced at low RH levels. Independent of the given RH level, the absolute contractions within the incision region ofD. cooperiwere significantly higher than in all other segments of this species and ofD. ecklonis. The more pronounced contraction ofD. cooperileaves was linked mainly to the elastic properties of the central vascular strand, which is approximately twice as flexible as that ofD. ecklonisleaves.
英文关键词	ecological niche damage management leaf kinematics morphology biomechanics self-repair succulence trichomes
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000565110100001
WOS关键词	WIDE-BAND TRACHEIDS ; SUCCULENT LEAVES ; PLANT ; EVOLUTION ; AIZOACEAE ; REPAIR ; STEMS ; WATER ; STRATEGIES ; TOLERANCE
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325974
作者单位	[Hesse, Linnea; Kampowski, Tim; Caliaro, Sandra; Speck, Thomas; Speck, Olga] Univ Freiburg, Fac Biol, Bot Garden, Plant Biomech Grp, D-79104 Freiburg, Germany; [Kampowski, Tim; Speck, Thomas; Speck, Olga] Univ Freiburg, Freiburg Mat Res Ctr FMF, D-79104 Freiburg, Germany; [Leupold, Jochen] Univ Freiburg, Fac Med, Med Ctr, Dept Radiol,Med Phys, D-79106 Freiburg, Germany; [Caliaro, Sandra; Speck, Thomas; Speck, Olga] Univ Freiburg, Cluster Excellence LivMatS FIT Freiburg Ctr Inter, D-79110 Freiburg, Germany
推荐引用方式 GB/T 7714	Hesse, Linnea,Kampowski, Tim,Leupold, Jochen,et al. Comparative Analyses of the Self-Sealing Mechanisms in Leaves ofDelosperma cooperiandDelosperma ecklonis(Aizoaceae)[J],2020,21(16).
APA	Hesse, Linnea,Kampowski, Tim,Leupold, Jochen,Caliaro, Sandra,Speck, Thomas,&Speck, Olga.(2020).Comparative Analyses of the Self-Sealing Mechanisms in Leaves ofDelosperma cooperiandDelosperma ecklonis(Aizoaceae).INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,21(16).
MLA	Hesse, Linnea,et al."Comparative Analyses of the Self-Sealing Mechanisms in Leaves ofDelosperma cooperiandDelosperma ecklonis(Aizoaceae)".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 21.16(2020).