biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 57:797-800, 2013 | DOI: 10.1007/s10535-013-0361-x

Changes of dehydrin profiles induced by drought in winter wheat at different developmental stages

H. M. Zhang1,2, L. S. Zhang1,*, L. Liu1, W. N. Zhu1, W. B. Yang1
1 State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling, P.R. China
2 College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, P.R. China

Two cultivars of winter wheat (Triticum aestivum L.) differing in their drought tolerance (KTC86211 and ND7532) were subjected to a progressive soil water stress and recovery at four developmental stages. Dehydrins with molecular masses of 45 and 37 kDa were constitutively accumulated during all stages in both genotypes. The 28 kDa dehydrin accumulated exclusively at seedling stage in both genotypes. The 49 and 40 kDa dehydrins accumulated at both tillering and jointing stages but showed a genotype-specific pattern. The content of most dehydrins increased with decreased soil moisture and then decreased during recovery. These results suggest that accumulation pattern of dehydrins during water stress was related to the genotype and developmental stage.

Keywords: anthesis; drought resistance; jointing stage; seedling stage; soil moisture; tillering stage; Triticum aestivum
Subjects: dehydrins; water stress; developmental stage; stress tolerance; wheat

Received: March 8, 2013; Accepted: May 2, 2013; Published: December 1, 2013  Show citation

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Zhang, H.M., Zhang, L.S., Liu, L., Zhu, W.N., & Yang, W.B. (2013). Changes of dehydrin profiles induced by drought in winter wheat at different developmental stages. Biologia plantarum, 57(4), 797-800. doi: 10.1007/s10535-013-0361-x
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