Root nodules of a legume,showing a pink colour due to leghemoglobin Nitrogen-fixing nodules on leguminous-plant roots
Root nodules of a legume, showing a pink colour due to leghemoglobin
Sesbania rostrata(田菁)，a native legume of West Africa,forms a symbiotic relationship with Azorhizobium caulinodans-both stem and root nodules fix nitrogen
Sesbania rostrata（田菁）, a native legume of West Africa, forms a symbiotic relationship with Azorhizobium caulinodans - both stem and root nodules fix nitrogen
Apart from truly symbiotic nitrogen fixation,there are looser associations and free-living systems System of SYMBIOSIS ASSOCIATION FREE· N2 fixation (e.g.Rhizobium】 (e.g.Azospirillum) LIVING (e.g.Rhodospioriffum) (and microbes involved) (N2◆NH3)】 Energy Sucrose from Root exudates Heterotroph Autotroph source (plant (photo- (Organic C) the host plant from the host plant residues)synthesis) Estimates of fixation rate 50-400 10-200 1-2 10-80 (kg N/haly)
Apart from truly symbiotic nitrogen fixation, there are looser associations and free-living systems
Other nonmycorrhizal plants with special adaptations to acquire nutrients:parasitic and carnivorous plants
Other nonmycorrhizal plants with special adaptations to acquire nutrients: parasitic and carnivorous plants
Carnivorous plants
Carnivorous plants