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The Effect of 1,4‐dimethylnaphthalene on the Expression of Pathogenesis‐Related Protein 4 in Solanum tuberosum .
Author(s) -
Aljahani Abrar,
Campbell Michael
Publication year - 2018
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.2018.32.1_supplement.788.8
Subject(s) - solanum tuberosum , meristem , gene , biology , pathogenesis , gene expression , cell division , sprouting , pathogenesis related protein , protein expression , cell , microbiology and biotechnology , genetics , botany , immunology
It has been shown in recent studies that 1,4‐dimethylnaphthalene (DMN) can halt cell division in tuber meristems of Solanum tuberosum . By preventing cell division, DMN can prevent sprouting and prolong storage. RNA sequence data of potatoes treated with DMN revealed that the gene encoding for pathogenesis‐related protein 4 (PR‐4) is significantly induced in response to DMN. The level of PR‐4 gene expression increased by three‐fold in the fall and winter and by six fold in the spring, which is during late storage and the tissues are no longer dormant. This demonstrates that dormant potato tubers are recalcitrant in response to DMN induction of PR‐4. The PR‐4 protein belongs to a large family of plant host proteins triggered in response to pathological situations, such as bacteria or virus invasion. Members of PR protein family have different functions. PR‐4 is specifically involved in wound response, and it has both RNase and DNase activity. Further experiments are being conducted to determine the level of gene product for PR‐4 in response to DMN. Currently, it is unclear how the expression of PR‐4 relates to the suppression of cell division in potato meristems. Support or Funding Information Supported in part by grant from the 1,4‐Group of Meridian, ID This abstract is from the Experimental Biology 2018 Meeting. There is no full text article associated with this abstract published in The FASEB Journal .