ملخص
Phosphorus (P) deficiency is a common nutritional factor limiting agricultural production around the globe. Application of phosphatic fertilizers is generally recommended to cope with P deficiency; however, low use efficiency of available P fertilizers both in calcareous and acid soils limits its viability and also had serious environmental concerns. Higher plants have adapted a number of mechanism to live with low available P in soil such as changes in root morphology and architecture, decreased growth rate, improved P uptake and utilization efficiency, and exudation of organic acids and enzymes to solubilize external inorganic and organic P compounds in the rhizosphere. Plant species and even cultivars widely differ in P efficiency because of differences in one or more of these mechanisms. Exploitation of these genetic variations among crop plants can sustain agricultural production. Understanding the mechanism involved in sensing P deficiency could facilitate selection, breeding, and genetic engineering approaches to improve crop production in P-stressed environments and could reduce dependence on nonrenewable inorganic P resources. In this chapter, we briefly reviewed the responses of P deficiency in higher plants, their adaptive mechanisms, and signaling pathways.
اللغة الأصلية | English |
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عنوان منشور المضيف | Plant Signaling |
العنوان الفرعي لمنشور المضيف | Understanding the Molecular Crosstalk |
ناشر | Springer India |
الصفحات | 133-148 |
عدد الصفحات | 16 |
مستوى الصوت | 9788132215424 |
رقم المعيار الدولي للكتب (الإلكتروني) | 9788132215424 |
رقم المعيار الدولي للكتب (المطبوع) | 8132215419, 9788132215417 |
المعرِّفات الرقمية للأشياء | |
حالة النشر | Published - أكتوبر 1 2014 |
منشور خارجيًا | نعم |
ASJC Scopus subject areas
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