کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2014679 1541914 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mg deficiency affects leaf Mg remobilization and the proteome in Brassica napus
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
Mg deficiency affects leaf Mg remobilization and the proteome in Brassica napus
چکیده انگلیسی


• Mg deficiency decreases Brassica napus growth and modifies nutrient uptakes.
• Zn and Mn uptakes were significantly increased in Mg-depleted plants.
• In Mg-depleted plants, Mg was mobilized from oldest leaves to youngest tissues.
• Mg deficiency induces leaf proteome modifications.

In order to cope with variable mineral nutrient availability, higher plants have developed numerous strategies including the remobilization of nutrients from source to sink tissues. However, such processes remain relatively unknown for magnesium (Mg), which is the third most important cation in plant tissues. Using Mg depletion of Brassica napus, we have demonstrated that Mg is remobilized from old leaves to young shoot tissues. Moreover, this study showed that Mg depletion induces modification of nutrient uptake, especially Zn and Mn. Finally, comparative proteomic analysis of old leaves (source of Mg) revealed amongst other results that some proteins requiring Mg for their functionality (isocitrate dehydrogenase for example) were up-regulated. Moreover, down-regulation of proteases suggested that mobilization of Mg from old leaves was not associated with senescence.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Physiology and Biochemistry - Volume 107, October 2016, Pages 337–343
نویسندگان
, , , , , , , , ,