Journal of Food, Agriculture and Environment

Identification of differential expressed proteins responding to low temperature stress in pistils of kernel apricot

Author(s):

Ping Wang ¹, Yanhui Li ², Shengfang Han ³, Baoguo Li ¹ *

Recieved Date: 2012-06-22, Accepted Date: 2012-09-26

Abstract:

In order to explore the molecular mechanisms that kernel apricot (Prunus armeniaca Linn.) pistil resist the late spring frost, the artificial intelligent freezer chamber and label-free quantification technology were employed on which to identify the differential proteins in pistils of the frost resistant cultivar ‘Weixuan1hao’ compared with the frost sensitive cultivar ‘Longwangmao’ under low temperature stresses. Under low temperature stress condition (18^oC), totally 8 differential expressed proteins in pistils of ‘Weixuan1hao’ and ‘Longwangmao’ were figured out. Of which, seven differential proteins identified in ‘Weixuan1hao’ pistil showed lower expression levels than in ‘Longwangmao’, and one in pistils of ‘Weixuan1hao’ showed higher expression levels than in ‘Longwangmao’. Similarly, at mild low temperature condition, ten differential proteins in pistils of ‘Weixuan1hao’ and ‘Longwangmao’ were identified, including malate dehydrogenase dehydrogenase and other seven showing higher and two behaving lower expressions in ‘Weixuan1hao’ than those in ‘Longwangmao’. The results in this study suggest that a subset of proteins play an important role on plant withstanding to low temperature in pistils of kernel apricot. 

Keywords:

Kernel apricot pistil,  differential expressed proteins, low temperature stress, super-cooling point

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Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 3&4
Category: Agriculture
Pages: 550-554

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