کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2827012 1162317 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
How do plants respond to nutrient shortage by biomass allocation?
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
How do plants respond to nutrient shortage by biomass allocation?
چکیده انگلیسی

Plants constantly sense the changes in their environment; when mineral elements are scarce, they often allocate a greater proportion of their biomass to the root system. This acclimatory response is a consequence of metabolic changes in the shoot and an adjustment of carbohydrate transport to the root. It has long been known that deficiencies of essential macronutrients (nitrogen, phosphorus, potassium and magnesium) result in an accumulation of carbohydrates in leaves and roots, and modify the shoot-to-root biomass ratio. Here, we present an update on the effects of mineral deficiencies on the expression of genes involved in primary metabolism in the shoot, the evidence for increased carbohydrate concentrations and altered biomass allocation between shoot and root, and the consequences of these changes on the growth and morphology of the plant root system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 11, Issue 12, December 2006, Pages 610–617
نویسندگان
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