Leaf Intracellular Water Transport Rate Based on Physiological Impedance: A Possible Role of Leaf Internal Retained Water in Photosynthesis and Growth of Tomatoes | |
Deke Xing; Renlong Mao; Zhenyi Li; Yanyou Wu![]() | |
2022 | |
Source Publication | Frontiers in Plant Science
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Pages | 845628 |
Abstract | Water consumed by photosynthesis and growth rather than transpiration accounts for only 1–3% of the water absorbed by roots. Leaf intracellular water transport rate (LIWTR) based on physiological impedance (Z) provides information on the transport traits of the leaf internal retained water, which helps determine the intracellular water status. Solanum lycopersicum plants were subjected to five different levels of relative soil water content (SWCR) (e.g., 100, 90, 80, 70, and 60%) for 3 months. The leaf water potential (9L), Z, photosynthesis, growth, and water-use efficiency (WUE) were determined. A coupling model between gripping force and physiological impedance was established according to the Nernst equation, and the inherent LIWTR (LIWTRi) was determined. The results showed that LIWTRi together with 9L altered the intracellular water status as water supply changed. When SWCR was 100, 90, and 80%, stomatal closure reduced the transpiration and decreased the water transport within leaves. Net photosynthetic rate (PN) was inhibited by the decreased stomatal conductance (gs) or 9L, but constant transport of the intracellular water was conducive to plant growth or dry matter accumulation. Remarkably, increased LIWTRi helped to improve the delivery and WUE of the retained leaf internal water, which maintained PN and improved the WUE at 70% but could not keep the plant growth and yields at 70 and 60% due to the further decrease of water supply and 9L. The increased transport rate of leaf intracellular water helped plants efficiently use intracellular water and maintain growth or photosynthesis, |
Keyword | Electrophysiology, Growth, Photosynthesis, Water Potential, Water-use Efficiency |
DOI | 10.3389/fpls.2022.845628 |
Indexed By | SCI |
Language | 英语 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.gyig.ac.cn/handle/42920512-1/13506 |
Collection | 环境地球化学国家重点实验室 |
Affiliation | 1.Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, China 2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China |
Recommended Citation GB/T 7714 | Deke Xing,Renlong Mao,Zhenyi Li,et al. Leaf Intracellular Water Transport Rate Based on Physiological Impedance: A Possible Role of Leaf Internal Retained Water in Photosynthesis and Growth of Tomatoes[J]. Frontiers in Plant Science,2022:845628. |
APA | Deke Xing,Renlong Mao,Zhenyi Li,Yanyou Wu,Xiaojie Qin,&Weiguo Fu.(2022).Leaf Intracellular Water Transport Rate Based on Physiological Impedance: A Possible Role of Leaf Internal Retained Water in Photosynthesis and Growth of Tomatoes.Frontiers in Plant Science,845628. |
MLA | Deke Xing,et al."Leaf Intracellular Water Transport Rate Based on Physiological Impedance: A Possible Role of Leaf Internal Retained Water in Photosynthesis and Growth of Tomatoes".Frontiers in Plant Science (2022):845628. |
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