boiling-stable proteins;
cyclophilin;
water stress;
sorghum;
D O I:
10.1007/s10725-006-9134-2
中图分类号:
Q94 [植物学];
学科分类号:
071001 ;
摘要:
The effect of heat stress, drought and abscisic acid (ABA) on the induction of boiling-stable proteins were studied in 12 h germinated sorghum embryos and endosperm. SDS-PAGE revealed the heat shock induction of one major 97 kDa boiling-stable protein both in embryos and endosperm. Western blotting analysis, using polyclonal antibodies raised against a 20 kDa Arabidopsis thaliana cyclophilin, revealed the induction of a cross-reacting band (97 kDa, BsCyp) in both embryos and endosperm in a time dependent manner. The BsCyp boiling-stable polypeptide was also regulated by exogenous application of ABA, indicating its role in water stress adaptation. Drought stress also resulted in a significant induction of boiling-stable protein (BsCyp) in both embryos and endosperm. Based upon these observations the possible role of BsCyp in water stress tolerance is discussed.
机构:
Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R ChinaNortheast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R China
Yang, Guiyan
Wang, Yucheng
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机构:
Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R ChinaNortheast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R China
Wang, Yucheng
Zhang, Kaimin
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机构:
Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R ChinaNortheast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R China
Zhang, Kaimin
Gao, Caiqiu
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机构:
Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R ChinaNortheast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R China