Physiological and molecular characteristics associated  with the anti-senescence in Camellia oleifera Abel.

Z. ZHANG; Y.M. XU; Z.L. HE; C.X. LIU; R. WANG; X.N. WANG; Y.H. PENG; L.S. CHEN; S.F. PENG; L. MA; Z.G. LI; W. TANG; Y.Z. CHEN; J. CHEN; X.H. YANG

doi:10.32615/ps.2024.003

Photosynthetica (Feb 2024)

Physiological and molecular characteristics associated with the anti-senescence in Camellia oleifera Abel.

Z. ZHANG,
Y.M. XU,
Z.L. HE,
C.X. LIU,
R. WANG,
X.N. WANG,
Y.H. PENG,
L.S. CHEN,
S.F. PENG,
L. MA,
Z.G. LI,
W. TANG,
Y.Z. CHEN,
J. CHEN,
X.H. YANG

Affiliations

Z. ZHANG: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
Y.M. XU: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
Z.L. HE: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
C.X. LIU: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
R. WANG: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
X.N. WANG: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
Y.H. PENG: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
L.S. CHEN: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
S.F. PENG: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
L. MA: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
Z.G. LI: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
W. TANG: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
Y.Z. CHEN: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China
J. CHEN: Mid-Florida Research and Education Center, Department of Environmental Horticulture, Institute of Food and Agricultural Science, University of Florida, 32703 Apopka, USA
X.H. YANG: Hunan Academy of Forestry, National Research Center of Oil-tea Engineering Technology, 410004 Changsha, China

DOI: https://doi.org/10.32615/ps.2024.003
Journal volume & issue: Vol. 62, no. 1
pp. 102 – 111

Abstract

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This study analyzed physiological and molecular characteristics associated with the resistance to aging or anti-senescence in Camellia oleifera Abel. Trees over 100 years old (ancient trees) were compared with those about 30 years old (mature trees). Total chlorophylls, chlorophyll a/b ratio, and hydrogen peroxide concentrations in ancient tree leaves were significantly higher than in their counterparts. Significantly higher activities of superoxide dismutase, peroxidase, and catalase were detected in ancient tree leaves. Nine Chl a/b-binding protein genes, 15 antioxidant enzyme genes, 21 hormone-related genes, and 301 stress-related genes were upregulated, and 42 protein-degradation genes were downregulated in ancient tree leaves. By increasing chlorophyll content and antioxidant enzyme activities and regulating the ageing-related genes expression, ancient C. oleifera leaves maintained remarkable vitality. Although further research is needed, our study may shed some light on how ancient C. oleifera trees can resist ageing and sustain their healthy growth.

Published in Photosynthetica

ISSN: 0300-3604 (Print); 1573-9058 (Online)
Publisher: Academy of Sciences of the Czech Republic, Institute of Experimental Botany
Country of publisher: Czechia
LCC subjects: Science: Botany
Website: https://ps.ueb.cas.cz/

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