A cytosolic class II small heat shock protein, PfHSP17.2, confers resistance to heat, cold, and salt stresses in transgenic Arabidopsis



Document title: A cytosolic class II small heat shock protein, PfHSP17.2, confers resistance to heat, cold, and salt stresses in transgenic Arabidopsis
Journal: Genetics and molecular biology
Database: PERIÓDICA
System number: 000420038
ISSN: 1415-4757
Authors: 1
2
2
2
2
Institutions: 1Zhejiang Sci-Tech University, School of Civil Engineering and Architecture, Zhenjiang. China
2Beijing Forestry University, College of Landscape Architecture, Beijing. China
Year:
Season: Sep
Volumen: 41
Number: 3
Pages: 649-660
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract We cloned and characterized the full-length coding sequence of a small heat shock (sHSP) gene, PfHSP17.2 , from Primula forrestii leaves following heat stress treatment. Homology and phylogenetic analysis suggested that PfHSP17.2 is a cytosolic class II sHSP, which was further supported by the cytosolic localization of transient expres - sion of PfHSP17.2 fused with green fluorescent protein reporter. Expression analysis showed that PfHSP17.2 was highly inducible by heat stress in almost all the vegetative and generative tissues and was expressed under salt, cold, and oxidative stress conditions as well. Moreover, the expression of PfHSP17.2 in P. forrestii was detected in certain developmental growth stages. Transgenic Arabidopsis thaliana constitutively expressing PfHSP17.2 displayed increased thermotolerance and higher resistance to salt and cold compared with wild type plants. It is suggested that PfHSP17.2 plays a key role in heat and other abiotic stresses
Disciplines: Biología,
Química
Keyword: Fisiología vegetal,
Genética,
Bioquímica,
Gen sHSPs,
Tolerancia al estrés,
Arabidopsis thaliana
Keyword: Plant physiology,
Genetics,
Biochemistry,
sHSPs gene,
Stress tolerance,
Arabidopsis thaliana
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