Tobacco serine/threonine protein kinase gene NrSTK enhances black shank resistance | Zendy

Yulin Gao | Zendy; Bei Wang | Zendy; Zhiliang Xu | Zendy; Minhui Li | Zendy; Zhengbo Song | Zendy; Wanying Li | Zendy; Y.-P. Li | Zendy

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Tobacco serine/threonine protein kinase gene NrSTK enhances black shank resistance

Author(s) -

Yulin Gao,

Bei Wang,

Zhiliang Xu,

Minhui Li,

Zhengbo Song,

Wanying Li,

Y.-P. Li

Publication year - 2015

Publication title -

genetics and molecular research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.356

H-Index - 48

ISSN - 1676-5680

DOI - 10.4238/2015.december.9.11

Subject(s) - threonine , gene , serine , protein kinase a , akt3 , map2k7 , biology , kinase , genetics , c raf , biochemistry , phosphorylation , mitogen activated protein kinase kinase , cyclin dependent kinase 2

A serine/threonine protein kinase gene (NrSTK) was cloned from Nicotiana repanda based on the sequence of a previously isolated resistance gene analog (RGA). Expression of RGA was induced by challenge with the pathogen black shank. The NrSTK gene was predicted to encode a protein kinase that contained an ATP binding site at residues 41-69 and a serine/threonine protein kinase activation sequence spanning the region 161-173. Overexpression of NrSTK in the susceptible tobacco variety Honghuadajinyuan significantly enhanced resistance to black shank, indicating that NrSTK plays a role in incompatibility reactions between tobacco and the pathogen. Characterization of NrSTK will help elucidate the molecular mechanisms involved in black shank resistance in N. repanda.

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