Responses of Sinningia speciosa Overexpressing tMEK2 to Temperature Stresses

ACTA HORTICULTURAE SINICA ›› 2012, Vol. 39 ›› Issue (2): 375-380.

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Responses of Sinningia speciosa Overexpressing tMEK2 to Temperature Stresses

SUN Shu-lan¹，WEN Qiu-xiang¹，DAI Jian-li¹，XING Tim²，and WANG Xiao-jing^1,*

1Guangdong Key Lab of Biotechnology for Plant Development，School of Life Sciences，South China Normal University，Guangzhou 510631，China；2Department of Biology，Carleton University，Ottawa K1S5B6，Canada

Received:2011-11-01 Revised:2012-01-03 Online:2012-02-25 Published:2012-02-25
Contact: WANG Xiao-jing E-mail:wangxj@scnu.edu.cn

Abstract

Abstract: We constructed a MAPKK gene from tomato，tMEK2 overexpressing construct to transform into Sinningia speciosa. Transgenic plants were identified by PCR and Southern blotting analyses，and their resistance to cold and high temperatures was analyzed. The results showed that the tMEK2 overexpressing plants had smaller leaves，increased contents of chlorophyll in leaves，and better recoveries of plant growth after treatments with cold and high temperatures，compared to control of wild type plants.

Key words: Sinningia speciosa, tMEK2, overexpression, temperature stress, recovery of growth

CLC Number:

S 68

SUN Shu-Lan, WEN Qiu-Xiang, DAI Jian-Li, XING Ti, WANG Xiao-Jing. Responses of Sinningia speciosa Overexpressing tMEK2 to Temperature Stresses[J]. ACTA HORTICULTURAE SINICA, 2012, 39(2): 375-380.

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Responses of Sinningia speciosa Overexpressing tMEK2 to Temperature Stresses

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