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A novel NAP member GhNAP is involved in leaf senescence in Gossypium hirsutum.

Fan K, Bibi N, Gan S, Li F, Yuan S, Ni M, Wang M, Shen H, Wang X - J. Exp. Bot. (2015)

Bottom Line: Furthermore, the expression of GhNAP was closely associated with leaf senescence.Moreover, the expression of GhNAP can be induced by abscisic acid (ABA), and the delayed leaf senescence phenotype in GhNAPi plants might be caused by the decreased ABA level and reduced expression level of ABA-responsive genes.All of the results suggested that GhNAP could regulate the leaf senescence via the ABA-mediated pathways and was further related to the yield and quality in cotton.

View Article: PubMed Central - PubMed

Affiliation: Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, PR China.

No MeSH data available.


Phenotypes of the GhNAPi and wild-type cotton. (A and C) Wild-type cotton. (B and D) GhNAPi cotton. (A) and (B) were photographed at 60 days after planting (DAP). The circle indicates the non-transgenic seedling leaf with the withered dot after screening with 500mg l–1 kanamycin. (C) and (D) were photographed at 120 DAP. (This figure is available in colour at JXB online.)
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Figure 6: Phenotypes of the GhNAPi and wild-type cotton. (A and C) Wild-type cotton. (B and D) GhNAPi cotton. (A) and (B) were photographed at 60 days after planting (DAP). The circle indicates the non-transgenic seedling leaf with the withered dot after screening with 500mg l–1 kanamycin. (C) and (D) were photographed at 120 DAP. (This figure is available in colour at JXB online.)

Mentions: To confirm GhNAP’s function further, the GhNAPi transgenic lines were selected through transformation of the pCI-GhNAPi vector (Supplementary Fig. S7 at JXB online). Then the GhNAPi and corresponding wild-type lines were grown in the field. The GhNAPi lines showed delayed senescence especially during the later stage of growth (Fig. 6).


A novel NAP member GhNAP is involved in leaf senescence in Gossypium hirsutum.

Fan K, Bibi N, Gan S, Li F, Yuan S, Ni M, Wang M, Shen H, Wang X - J. Exp. Bot. (2015)

Phenotypes of the GhNAPi and wild-type cotton. (A and C) Wild-type cotton. (B and D) GhNAPi cotton. (A) and (B) were photographed at 60 days after planting (DAP). The circle indicates the non-transgenic seedling leaf with the withered dot after screening with 500mg l–1 kanamycin. (C) and (D) were photographed at 120 DAP. (This figure is available in colour at JXB online.)
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4507772&req=5

Figure 6: Phenotypes of the GhNAPi and wild-type cotton. (A and C) Wild-type cotton. (B and D) GhNAPi cotton. (A) and (B) were photographed at 60 days after planting (DAP). The circle indicates the non-transgenic seedling leaf with the withered dot after screening with 500mg l–1 kanamycin. (C) and (D) were photographed at 120 DAP. (This figure is available in colour at JXB online.)
Mentions: To confirm GhNAP’s function further, the GhNAPi transgenic lines were selected through transformation of the pCI-GhNAPi vector (Supplementary Fig. S7 at JXB online). Then the GhNAPi and corresponding wild-type lines were grown in the field. The GhNAPi lines showed delayed senescence especially during the later stage of growth (Fig. 6).

Bottom Line: Furthermore, the expression of GhNAP was closely associated with leaf senescence.Moreover, the expression of GhNAP can be induced by abscisic acid (ABA), and the delayed leaf senescence phenotype in GhNAPi plants might be caused by the decreased ABA level and reduced expression level of ABA-responsive genes.All of the results suggested that GhNAP could regulate the leaf senescence via the ABA-mediated pathways and was further related to the yield and quality in cotton.

View Article: PubMed Central - PubMed

Affiliation: Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, PR China.

No MeSH data available.