| Title: | Effect of jasmonates on ethylene biosynthesis and aroma volatile emission in Japanese apricot infected by a pathogen (Colletotrichum gloeosporioides) |
| Author(s): | Nimitkeatkai H; Shishido M; Okawa K; Ohara H; Ban Y; Kita M; Moriguchi T; Ikeura H; Hayata Y; Kondo S; |
| Address: | "Graduate School of Horticulture, Chiba University, Chiba 271-8510, Japan" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "The effects of the application of the jasmonic acid derivative n-propyl dihydrojasmonate (PDJ) on ethylene biosynthesis, volatile compounds, and endogenous jasmonic acid (JA) and methyl jasmonate (MeJA) were examined in Japanese apricot (Prunus mume Sieb.) infected by a pathogen (Colletotrichum gloeosporioides). The fruit were dipped into 0.4 mM PDJ solution before inoculation with the pathogen and stored at 25 degrees C for 6 days. The inoculation induced an increase in 1-aminocyclopropane-1-carboxylic acid (ACC), ethylene, JA, and MeJA. In contrast, PDJ application reduced the endogenous JA, MeJA, and ethylene production and expression of the ACC oxidase gene (PmACO1) caused by the pathogen infection. The lesion diameter with C. gloeosporioides decreased upon PDJ application. The alcohol, ester, ketone, and lactone concentrations and alcohol acyltransferase (AAT) activity increased in the pathogen-infected fruit, but were decreased by PDJ application. These results suggest that PDJ application might influence ethylene production through PmACO1 and that aroma volatile emissions affected by pathogen infection can be correlated with the ethylene production, which is mediated by the levels of jasmonates" |
| Keywords: | "Amino Acid Oxidoreductases/genetics/metabolism Colletotrichum/*physiology Cyclopentanes/metabolism/*pharmacology Ethylenes/*biosynthesis Gene Expression Regulation, Plant/drug effects Oxylipins/metabolism/*pharmacology Plant Diseases/*microbiology Plant P;" |
| Notes: | "MedlineNimitkeatkai, Hataitip Shishido, Masahiro Okawa, Katsuya Ohara, Hitoshi Ban, Yusuke Kita, Masayuki Moriguchi, Takaya Ikeura, Hiromi Hayata, Yasuyoshi Kondo, Satoru eng Research Support, Non-U.S. Gov't 2011/05/24 J Agric Food Chem. 2011 Jun 22; 59(12):6423-9. doi: 10.1021/jf2010996. Epub 2011 Jun 1" |
