کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10758541 | 1050409 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Putrescine regulating by stress-responsive MAPK cascade contributes to bacterial pathogen defense in Arabidopsis
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Putrescine regulating by stress-responsive MAPK cascade contributes to bacterial pathogen defense in Arabidopsis Putrescine regulating by stress-responsive MAPK cascade contributes to bacterial pathogen defense in Arabidopsis](/preview/png/10758541.png)
چکیده انگلیسی
Polyamines in plants are involved in various physiological and developmental processes including abiotic and biotic stress responses. We investigated the expression of ADCs, which are key enzymes in putrescine (Put) biosynthesis, and roles of Put involving defense response in Arabidopsis. The increased expression of ADC1 and ADC2, and the induction of Put were detected in GVG-NtMEK2DD transgenic Arabidopsis, whereas, their performance was partially compromised in GVG-NtMEK2DD/mpk3 and GVG-NtMEK2DD/mpk6 mutant following DEX treatment. The expression of ADC2 was highly induced by Pst DC3000 inoculation, while the transcript levels of ADC1 were slightly up-regulated. Compared to the WT plant, Put content in the adc2 knock-out mutant was reduced after Pst DC3000 inoculation, and showed enhanced susceptibility to pathogen infection. The adc2 mutant exhibited reduced expression of PR-1 after bacterial infection and the growth of the pathogen was about 4-fold more than that in the WT plant. Furthermore, the disease susceptibility of the adc2 mutant was recovered by the addition of exogenous Put. Taken together, these results suggest that Arabidopsis MPK3 and MPK6 play a positive role in the regulation of Put biosynthesis, and that Put contributes to bacterial pathogen defense in Arabidopsis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 437, Issue 4, 9 August 2013, Pages 502-508
Journal: Biochemical and Biophysical Research Communications - Volume 437, Issue 4, 9 August 2013, Pages 502-508
نویسندگان
Su-Hyun Kim, Sun-Hwa Kim, Seung-Jin Yoo, Kwang-Hyun Min, Seung-Hee Nam, Baik Ho Cho, Kwang-Yeol Yang,