Abstract:
: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.
journal_name
Trends Plant Scijournal_title
Trends in plant scienceauthors
Hermans C,Hammond JP,White PJ,Verbruggen Ndoi
10.1016/j.tplants.2006.10.007subject
Has Abstractpub_date
2006-12-01 00:00:00pages
610-7issue
12eissn
1360-1385issn
1878-4372pii
S1360-1385(06)00282-2journal_volume
11pub_type
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