scholarly journals An ERF Transcription Factor Gene from Malus baccata (L.) Borkh, MbERF11, Affects Cold and Salt Stress Tolerance in Arabidopsis

Forests ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 514 ◽  
Author(s):  
Deguo Han ◽  
Jiaxin Han ◽  
Guohui Yang ◽  
Shuang Wang ◽  
Tianlong Xu ◽  
...  

Apple, as one of the most important economic forest tree species, is widely grown in the world. Abiotic stress, such as low temperature and high salt, affect apple growth and development. Ethylene response factors (ERFs) are widely involved in the responses of plants to biotic and abiotic stresses. In this study, a new ethylene response factor gene was isolated from Malus baccata (L.) Borkh and designated as MbERF11. The MbERF11 gene encoded a protein of 160 amino acid residues with a theoretical isoelectric point of 9.27 and a predicated molecular mass of 17.97 kDa. Subcellular localization showed that MbERF11 was localized to the nucleus. The expression of MbERF11 was enriched in root and stem, and was highly affected by cold, salt, and ethylene treatments in M. baccata seedlings. When MbERF11 was introduced into Arabidopsis thaliana, it greatly increased the cold and salt tolerance in transgenic plant. Increased expression of MbERF11 in transgenic A. thaliana also resulted in higher activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), higher contents of proline and chlorophyll, while malondialdehyde (MDA) content was lower, especially in response to cold and salt stress. Therefore, these results suggest that MbERF11 probably plays an important role in the response to cold and salt stress in Arabidopsis by enhancing the scavenging capability for reactive oxygen species (ROS).

2020 ◽  
Vol 21 (13) ◽  
pp. 4586 ◽  
Author(s):  
Yujie Qu ◽  
Quandong Nong ◽  
Shuguang Jian ◽  
Hongfang Lu ◽  
Mingyong Zhang ◽  
...  

Pitaya (Hylocereus undatus) is a high salt-tolerant fruit, and ethylene response factors (ERFs) play important roles in transcription-regulating abiotic tolerance. To clarify the function of HuERF1 in the salt tolerance of pitaya, HuERF1 was heterogeneously expressed in Arabidopsis. HuERF1 had nuclear localization when HuERF1::GFP was expressed in Arabidopsis protoplasts and had transactivation activity when HuERF1 was expressed in yeast. The expression of HuERF1 in pitaya seedlings was significantly induced after exposure to ethylene and high salinity. Overexpression of HuERF1 in Arabidopsis conferred enhanced tolerance to salt stress, reduced the accumulation of superoxide (O2 · ¯ ) and hydrogen peroxide (H2O2), and improved antioxidant enzyme activities. These results indicate that HuERF1 is involved in ethylene-mediated salt stress tolerance, which may contribute to the salt tolerance of pitaya.


2020 ◽  
Vol 4 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Jin Gao ◽  
Yaoxin Zhang ◽  
Zhengguo Li ◽  
Mingchun Liu

Abstract The ethylene response factors (ERFs) belong to the APETALA2/ethylene response factor (AP2/ERF) superfamily and act downstream of the ethylene signalling pathway to regulate the expression of ethylene responsive genes. In different species, ERFs have been reported to be involved in plant development, flower abscission, fruit ripening, and defense responses. In this review, based on the new progress made by recent studies, we summarize the specific role and mode of action of ERFs in regulating different aspects of ripening in both climacteric and non-climacteric fruits, and provide new insights into the role of ethylene in non-climacteric fruit ripening.


2014 ◽  
Vol 166 (2) ◽  
pp. 1022-1032 ◽  
Author(s):  
N. M.-d. la Rosa ◽  
B. Sotillo ◽  
P. Miskolczi ◽  
D. J. Gibbs ◽  
J. Vicente ◽  
...  

Plant Science ◽  
2018 ◽  
Vol 274 ◽  
pp. 137-145 ◽  
Author(s):  
Imen Klay ◽  
Sandra Gouia ◽  
Mingchun Liu ◽  
Isabelle Mila ◽  
Habib Khoudi ◽  
...  

2016 ◽  
Vol 199 ◽  
pp. 209-215 ◽  
Author(s):  
Ai-di Zhang ◽  
Xiong Hu ◽  
Sheng Kuang ◽  
Hang Ge ◽  
Xue-ren Yin ◽  
...  

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