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Journal of Zhejiang University SCIENCE B 2021 Vol.22 No.8 P.682-694


Hemin-induced increase in saponin content contributes to the alleviation of osmotic and cold stress damage to Conyza blinii in a heme oxygenase 1-dependent manner

Author(s):  Tianrun ZHENG, Junyi ZHAN, Ming YANG, Maojia WANG, Wenjun SUN, Zhi SHAN, Hui CHEN

Affiliation(s):  College of Life Science, Sichuan Agricultural University, Ya’an 625014, China; more

Corresponding email(s):   chenhui@sicau.edu.cn

Key Words:  Hemin, Saponin, Conyza blinii, Heme oxygenase, Abiotic stress

Tianrun ZHENG, Junyi ZHAN, Ming YANG, Maojia WANG, Wenjun SUN, Zhi SHAN, Hui CHEN. Hemin-induced increase in saponin content contributes to the alleviation of osmotic and cold stress damage to Conyza blinii in a heme oxygenase 1-dependent manner[J]. Journal of Zhejiang University Science B, 2021, 22(8): 682-694.

@article{title="Hemin-induced increase in saponin content contributes to the alleviation of osmotic and cold stress damage to Conyza blinii in a heme oxygenase 1-dependent manner",
author="Tianrun ZHENG, Junyi ZHAN, Ming YANG, Maojia WANG, Wenjun SUN, Zhi SHAN, Hui CHEN",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Hemin-induced increase in saponin content contributes to the alleviation of osmotic and cold stress damage to Conyza blinii in a heme oxygenase 1-dependent manner
%A Tianrun ZHENG
%A Junyi ZHAN
%A Ming YANG
%A Maojia WANG
%A Wenjun SUN
%J Journal of Zhejiang University SCIENCE B
%V 22
%N 8
%P 682-694
%@ 1673-1581
%D 2021
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B2000697

T1 - Hemin-induced increase in saponin content contributes to the alleviation of osmotic and cold stress damage to Conyza blinii in a heme oxygenase 1-dependent manner
A1 - Tianrun ZHENG
A1 - Junyi ZHAN
A1 - Ming YANG
A1 - Maojia WANG
A1 - Wenjun SUN
A1 - Zhi SHAN
A1 - Hui CHEN
J0 - Journal of Zhejiang University Science B
VL - 22
IS - 8
SP - 682
EP - 694
%@ 1673-1581
Y1 - 2021
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B2000697

hemin can improve the stress resistance of plants through the heme oxygenase system. Additionally, substances contained in plants, such as secondary metabolites, can improve stress resistance. However, few studies have explored the effects of hemin on secondary metabolite content. Therefore, the effects of hemin on saponin synthesis and the mechanism of plant injury relief by hemin in Conyza blinii were investigated in this study. hemin treatment promoted plant growth and increased the antioxidant enzyme activity and saponin content of C. blinii under osmotic stress and cold stress. Further study showed that hemin could provide sufficient precursors for saponin synthesis by improving the photosynthetic capacity of C. blinii and increasing the gene expression of key enzymes in the saponin synthesis pathway, thus increasing the saponin content. Moreover, the promotion effect of hemin on saponin synthesis is dependent on heme oxygenase-1 and can be reversed by the inhibitor Zn-protoporphyrin-IX (ZnPPIX). This study revealed that hemin can increase the saponin content of C. blinii and alleviate the damage caused by abiotic stress, and it also broadened the understanding of the relationship between hemin and secondary metabolites in plant abiotic stress relief.




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