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Importance of iron use‐efficiency of nodules in common bean ( Phaseolus vulgaris L.) for iron deficiency chlorosis resistance
Author(s) -
Krouma Abdelmajid,
Abdelly Chedly
Publication year - 2003
Publication title -
journal of plant nutrition and soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 1436-8730
DOI - 10.1002/jpln.200320251
Subject(s) - phaseolus , nitrogen fixation , iron deficiency , symbiosis , cultivar , chlorosis , rhizobia , biology , rhizobium , nitrogenase , fabaceae , dry matter , nitrogen , agronomy , horticulture , botany , chemistry , inoculation , bacteria , medicine , genetics , organic chemistry , anemia
Several studies suggest that the Fabaceae‐Rhizobium symbiosis is particularly sensitive to iron (Fe) deficiency with respect to NO 3 – ‐dependent plants. The aim of this study, which is part of a screening program for common bean tolerance to Fe deficiency, was to study genotypical differences in Fe requirement and Fe use‐efficiency of common bean cultivars depending on symbiotic nitrogen fixation (SNF). Results show that ARA14 produces more whole plant dry matter and particularly more nodule biomass than Coco blanc. ARA14 is characterized by a high capacity of nitrogen fixation and a better Fe use‐efficiency for the growth and the function of the nodules.