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Tytuł pozycji:

Why Is the Invasive Plant Sphagneticola trilobata More Resistant to High Temperature than Its Native Congener?

Tytuł :
Why Is the Invasive Plant Sphagneticola trilobata More Resistant to High Temperature than Its Native Congener?
Autorzy :
Cai M; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
Lin X; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
Peng J; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
Zhang J; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
Chen M; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
Huang J; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
Chen L; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
Sun F; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
Ding W; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
Peng C; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, College of Life Sciences, South China Normal University, Guangzhou 510631, China.
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Źródło :
International journal of molecular sciences [Int J Mol Sci] 2021 Jan 13; Vol. 22 (2). Date of Electronic Publication: 2021 Jan 13.
Typ publikacji :
Journal Article
Język :
English
Imprint Name(s) :
Original Publication: Basel, Switzerland : MDPI, [2000-
MeSH Terms :
Adaptation, Biological*
Hot Temperature*
Introduced Species*
Asteraceae/*physiology
Cell Membrane/metabolism ; Models, Biological ; Oxidative Stress ; Photosynthesis ; Plant Physiological Phenomena ; Reactive Oxygen Species/metabolism ; Stress, Physiological
References :
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Grant Information :
31870374,41907023 National Natural Science Foundation of China
Contributed Indexing :
Keywords: Sphagneticola; gene expression; high temperature stress; photosynthesis
Substance Nomenclature :
0 (Reactive Oxygen Species)
Entry Date(s) :
Date Created: 20210116 Date Completed: 20210407 Latest Revision: 20210407
Update Code :
20210408
PubMed Central ID :
PMC7828476
DOI :
10.3390/ijms22020748
PMID :
33451068
Czasopismo naukowe
Climate change and invasive alien species threaten biodiversity. High temperature is a worrying ecological factor. Most responses of invasive plants aimed at coping with adversity are focused on the physiological level. To explore the molecular mechanisms underlying the response of an invasive plant ( Sphagneticola trilobata L.) to high temperature, using a native species ( Sphagneticola calendulacea L.) as the control, relevant indicators, including photosynthetic pigments, gas exchange, chlorophyll fluorescence, the antioxidant system, and related enzyme-coding genes were measured. The results showed that the leaves of S. calendulacea turned yellow, photosynthetic pigment content (Chl a , Chl b , Car, Chl) decreased, gas exchange (P n ) and chlorophyll fluorescence parameters (F v /F m , Φ PSII ) decreased under high temperature. It was also found that high temperature caused photoinhibition and a large amount of ROS accumulated, resulting in an increase in MDA and relative conductivity. Antioxidant enzymes (including SOD, POD, CAT, and APX) and antioxidants (including flavonoids, total phenols, and carotenoids) were decreased. The qPCR results further showed that the expression of the PsbP , PsbA, and RubiscoL , SOD , POD , CAT , and APX genes was downregulated, which was consistent with the results of physiological data. Otherwise, the resistance of S. trilobata to high temperature was better than that of S. calendulacea , which made it a superior plant in the invasion area. These results further indicated that the gradual warming of global temperature will greatly accelerate the invasion area of S. trilobata .
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