Journal
PLANT SIGNALING & BEHAVIOR
Volume 17, Issue 1, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15592324.2022.2073420
Keywords
Aegiceras corniculatum; bioenergetics; Kandelia obovate; total salt resistance capacity; ultrafiltration capacity
Categories
Funding
- National Key Research and Development Program of China [2016YFC0502602]
- National Natural Science Foundation of China [U1612441, 31301243]
- Natural Science Foundation of Jiangsu Province [BK20180863]
- Priority Academic Program Development [Priority Academic Program Development of Jiangsu Higher Education Institutions PAPD] of Jiangsu Higher Education Institutions
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This study reveals the relationship between the changes in plant life behaviors and water status and electrophysiological activities. By analyzing theoretical models and mechanical equations, key parameters for mangrove species are determined, and the effects of Sodium nitroprusside (SNP) and rewatering (R-W) on their salt-resistant capacities are discovered. The results indicate that electrophysiological parameters can be used to determine the salt-resistant capacities of mangroves, providing more reliable and detailed information about their life activities.
The changes in plant life behaviors and water status are accompanied by electrophysiological activities. In this study, the theoretical relationship between clamping force (C-F) and leaf resistance (R), capacitive reactance (X-C), inductive reactance (XL), impedance (Z), and capacitance (C) were exposed as 3-parameter exponential decay and linear models based on bioenergetics, respectively, for mangrove species. The intracellular water metabolism parameters and salt transport characteristics were also determined based on mechanical equations with influences of Sodium nitroprusside (SNP) and rewatering (R-W). The results show that the inherent capacitance and effective thickness could better represent Aegiceras corniculatum (A. corniculatum) species, and inherent resistance and impedance show obvious effects on Kandelia obovate (K. obovate) species at different salt levels. SNP application shows positive effect on different salt-resistance capacities of A. corniculatum, while K. obovate perform better in R-W phase at high salt level. These outcomes indicates that K. obovate is more salt-resistant because R-W process is consistent with actual situation, and response of A. corniculatum at high salt stress is irreversible, even in R-W. It is concluded that the electrophysiological parameters could be used for the determination of salt-resistant capacities, which gave more enhanced and reliable information of mangroves' life activities.
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