کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10841060 1067878 2005 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A cotyledonary agglutinin from Luetzelburgia auriculata inhibits the fungal growth of Colletotrichum lindemuthianum, Fusarium solani and Aspergillus niger and impairs glucose-stimulated acidification of the incubation medium by Saccharomyces cerevisiae ce
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
A cotyledonary agglutinin from Luetzelburgia auriculata inhibits the fungal growth of Colletotrichum lindemuthianum, Fusarium solani and Aspergillus niger and impairs glucose-stimulated acidification of the incubation medium by Saccharomyces cerevisiae ce
چکیده انگلیسی
The aim of this study was to test the hypothesis of the involvement of the cotyledonary Lutzelburgia auriculata agglutinin (LAA) in the plant defense against fungi. It was observed that LAA is localized at the periphery of the cotyledon and that it is released to the surrounding medium during seed germination when the plantlet is most vulnerable to phytopathogens. When LAA was included in the culture medium it inhibited the fungal growth of Colletotrichum lindemuthianum, Fusarium solani and Aspergillus niger compared to the same fungi cultured in the absence of LAA. To better understand the mechanism of action of LAA on fungal growth, Saccharomyces cerevisiae was used as a model. LAA reversibly bound to the yeast cells, inhibited its growth and promoted a 60% inhibition of the glucose-stimulated acidification of the incubation medium by S. cerevisiae suggesting its interference on the transport of intracellular protons to the external medium. In conclusion, the data indicate that LAA is possibly involved in the plant defense mechanisms against phytopathogen fungi.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Science - Volume 169, Issue 3, September 2005, Pages 629-639
نویسندگان
, , , , , ,