Application of Chlorophyll Fluorescence in Plant and Algal Stress

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".

Deadline for manuscript submissions: closed (20 October 2022) | Viewed by 2456

Special Issue Editors


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Guest Editor
College of Tropical Crops, Hainan University, Haikou 570228, China
Interests: photosynthesis; plant photoreceptors; photosynthetic sea slugs; secondary metabolites in tropical plants

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Guest Editor
State Key Laboratory of Marine Resource Utilization in South China Sea, College of Oceanology, Hainan University, Haikou 570228, Hainan, China
Interests: algal genomics & evolution; algal synthetic biology; phytoplankton-environment interaction; coral ecology

Special Issue Information

Dear Colleagues,

Photosynthesis, the conversion of CO2 into energy via the absorption of sunlight, sustains almost all life forms on earth. As photosynthetic organisms, higher plants, including crops, produce staple food for human consumption, while algae produce approximately half of the oxygen on earth or form mutualistic partnerships with coral reefs and other cnidarians, providing habitats for 25% of marine species, including over 4000 fish species. The measurement and analysis of chlorophyll fluorescence provides useful information in understanding the biological process and changes in photosynthetic activities. In recent years, chlorophyll fluorescence measuring techniques and phenome measuring techniques, including signal and dual-channel measurement, have become the most powerful tools in the study of the reaction of photosynthetic organisms to environmental factors, including light rhythms and signals, drought and flooding stresses, temperature changes and other stresses. Moreover, these techniques are applied in the study of many other photosynthetic systems, such as photosynthetic bacteria, to monitor their biological process and measure their reactions to environmental stimuli as well. This Special Issue of Plants will highlight the current progress of chlorophyll fluorescence techniques and the development and application of these techniques in the study of the biological process and reactions to environmental stresses of, but not limited to, plants and algae. 

Prof. Dr. Yinglang Wan
Prof. Dr. Lu Yandu
Guest Editors

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Keywords

  • chlorophyll fluorescence
  • environmental stresses
  • plants
  • algae
  • photosynthesis
  • corals

Published Papers (1 paper)

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Research

13 pages, 2279 KiB  
Article
Overexpression of a Gene Encoding Trigonelline Synthase from Areca catechu L. Promotes Drought Resilience in Transgenic Arabidopsis
by Yilin Li, Mengying Ding, Chuang Cui, Qiyuan An, Jiao Wu, Guangzhen Zhou, Yinglang Wan and Wenlong Bao
Plants 2022, 11(4), 487; https://doi.org/10.3390/plants11040487 - 11 Feb 2022
Cited by 4 | Viewed by 1904
Abstract
Areca catechu L. is a commercially important palm tree widely cultured in tropical and subtropical areas. Its growth and production are severely hindered by the increasing threat of drought. In the present study, we investigated the physiological responses of areca seedlings to drought [...] Read more.
Areca catechu L. is a commercially important palm tree widely cultured in tropical and subtropical areas. Its growth and production are severely hindered by the increasing threat of drought. In the present study, we investigated the physiological responses of areca seedlings to drought stress. The results showed that prolonged drought-induced yellowing on the overall area of most leaves significantly altered the chlorophyll fluorescence parameters, including maximum chemical efficiency (Fv/Fm), photochemical efficiency of PSII (Y(II)), photochemical chlorophyll fluorescence quenching (qP) and non-photochemical chlorophyll fluorescence quenching (NPQ). On the 10th day of drought treatment, the contents of proline in the areca leaves and roots increased, respectively, by 12.2 times and 8.4 times compared to normal watering. The trigonelline levels in the leaves rose from 695.35 µg/g to 1125.21 µg/g under 10 days of water shortage, while no significant changes were detected in the content of trigonelline in the roots. We determined the gene encoding areca trigonelline synthase (AcTS) by conducting a bioinformatic search of the areca genome database. Sequence analysis revealed that AcTS is highly homologous to the trigonelline synthases in Coffea arabica (CaTS 1 and CaTS 2) and all possess a conserved S-adenosyl- L-methionine binding motif. The overexpression of AcTS in Arabidopsis thaliana demonstrated that AcTS is responsible for the generation of trigonelline in transgenic Arabidopsis, which in turn improves the drought resilience of transgenic Arabidopsis. This finding enriches our understanding of the molecular regulatory mechanism of the response of areca to water shortage and provides a foundation for improving the drought tolerance of areca seedlings. Full article
(This article belongs to the Special Issue Application of Chlorophyll Fluorescence in Plant and Algal Stress)
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