干旱区生态环境知识资源中心(Arid): Effects of the Microstructural Characteristics of Leaves on the Dew Evaporation Duration and Absorption Capacity

Arid

DOI	10.1134/S1021443722601902
	Effects of the Microstructural Characteristics of Leaves on the Dew Evaporation Duration and Absorption Capacity
	Xu, Y. Y.; Liu, X. T.; Yang, X.
通讯作者	Xu, YY
来源期刊	RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
ISSN	1021-4437
EISSN	1608-3407
出版年	2022
卷号	69 期号:7
英文摘要	Dew is an important supplementary water source, and the dew evaporation duration and the amount absorbed by leaves differ significantly among species. To explore the dew evaporation duration and proportion of dew absorbed by leaves (F-u) of different plant leaves, seven potted plant species were selected to carry out laboratory experiments. The results showed that the dew evaporation duration of the seven plants ranged from 35'05 +/- 1'23 to 69'50 +/- 1'50. The order of dew evaporation duration was hydrophobic leaves > hydrophilic leaves with trichomes > hydrophilic leaves without trichomes. All the plants selected in the experiment could directly absorb water through the leaf surface. As a xerophytic plant, Crassula arborescens had the highest F-u (50.18 +/- 8.51%), which was significantly higher than that of other plants. The F-u values of Chlorophytum comosum, Syringa oblata, Begonia obsolescens, Ardisia mamillata, Juniperus formosana and Oxalis corniculata were 19.29 +/- 1.75%, 13.72 +/- 1.98%, 10.07 +/- 2.96%, 7.14 +/- 1.09%, 5.17 +/- 1.66%, and 1.08 +/- 0.44%, respectively. The F-u was positively correlated with water content (W-a) and leaf mass per unit of leaf area (LMA) (P < 0.01). The water absorption capacity of leaves increased with increasing W-a and LMA. The leaf surface was covered with high-density, long and hydrophobic trichomes, which prevented dew droplets from contacting the leaf surface directly, and the conditions were not conducive to absorbing dew. Leaves with three-dimensional wax are generally weak in absorbing dew, while leaves with two-dimensional wax are usually strong in absorbing dew. The hydrophilic leaf surface of xerophytic plants allows them to absorb more dew, which is one of the survival strategies of plants in arid regions.
英文关键词	dew absorption trichome stomata waxy structure evaporation duration wettability
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000954546300021
WOS关键词	FOLIAR WATER-UPTAKE ; PLANT-SURFACES ; LEAF ; PHOTOSYNTHESIS ; STRATEGIES ; TRICHOMES ; FOG
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/2XILL650/394331
推荐引用方式 GB/T 7714	Xu, Y. Y.,Liu, X. T.,Yang, X.. Effects of the Microstructural Characteristics of Leaves on the Dew Evaporation Duration and Absorption Capacity[J],2022,69(7).
APA	Xu, Y. Y.,Liu, X. T.,&Yang, X..(2022).Effects of the Microstructural Characteristics of Leaves on the Dew Evaporation Duration and Absorption Capacity.RUSSIAN JOURNAL OF PLANT PHYSIOLOGY,69(7).
MLA	Xu, Y. Y.,et al."Effects of the Microstructural Characteristics of Leaves on the Dew Evaporation Duration and Absorption Capacity".RUSSIAN JOURNAL OF PLANT PHYSIOLOGY 69.7(2022).