Embedded Files
Hawaiʻi is home to 17 edemic, 7 indiginous, and at least 173 introduced legume species. Most legume species associate with nitrogen fixing rhizobia, but what are the rhizobia that associate with native and non-native legumes in Hawaiʻi? To dig into this question, we sampled the roots to find nodules, and isolated the symbiotic bacteria that live within those nodules. Then we compared the DNA sequences of our isolates to the DNA sequences of type strains to provide a tentative identification. Since we only used the low-resolution 16S rRNA gene to identify these strains, we refer to their identity as "aff" on this page. These strains are maintained at the Soil Microbial Ecology Lab at UH Manoa. Contact us if you would like to use them.
Hawaiʻi is home to 17 edemic, 7 indiginous, and at least 173 introduced legume species. Most legume species associate with nitrogen fixing rhizobia, but what are the rhizobia that associate with native and non-native legumes in Hawaiʻi? To dig into this question, we sampled the roots to find nodules, and isolated the symbiotic bacteria that live within those nodules. Then we compared the DNA sequences of our isolates to the DNA sequences of type strains to provide a tentative identification. Since we only used the low-resolution 16S rRNA gene to identify these strains, we refer to their identity as "aff" on this page. These strains are maintained at the Soil Microbial Ecology Lab at UH Manoa. Contact us if you would like to use them.
This work was supported by a grant from the Undergraduate Research Opportunity Program (UROP) to Jon Abe, who led the effort. Additional support provided by USDA NIFA.
Acacia koa tree
Acacia koa leaves
Bradyrhizobium aff. elkanii nodules on Acacia koa
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Arachis pintoi plants
Arachis pintoi flower closeup
Nodules on Arachis pintoi
Associated with:
Rhizobium aff. indigoferae
Rhizobium aff. indigoferae
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Canavalia sericea leaves
Canavalia sericea flowers & pods
Bradyrhizobium aff. elkanii nodules on Canavalia sericea
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Centrosema pubescens
Centrosema pubescens flowers & pod
Bradyrhizobium aff. elkanii nodules on Centrosema pubescens
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Chamaecrista nictitans seedlings with nodules
Chamaecrista nictitans flowers & pods
Nodules on Chamaecrista nictitans
Associated with:
Ensifer aff. medicae
Ensifer aff. medicae
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Crotalaria juncea 'AU Golden'
Crotalaria juncea root system with giant nodule
Giant nodule on Crotalaria juncea
Associated with:
Ensifer aff. adhaerens
Ensifer aff. adhaerens
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Agrobacterium tumefaciens
Agrobacterium tumefaciens
Crotalaria pallida
Crotalaria pallida unopened inflorescence
Bradyrhizobium aff. elkanii nodules on Crotalaria pallida
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Crotalaria spectabilis
Crotalaria spectabilis flowers and pods
Bradyrhizobium aff. elkanii nodules on Crotalaria spectabilis
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Desmodium tortuosum
Desmodium tortuosum flowers and pods
Nodules on Desmodium tortuosum
Associated with:
Bradyrhizobium aff. vignae
Bradyrhizobium aff. vignae
Rhizobium aff. indigoferae
Rhizobium aff. indigoferae
Agrobacterium aff. rubi
Agrobacterium aff. rubi
Desmodium triflorum
Desmodium triflorum
Nodules on Desmodium triflorum
Associated with:
unidentified bacterium
unidentified bacterium
Erythrina sandwicensis seedling
Erythrina sandwicensis root system with nodules
Nodules on Erythrina sandwicensis
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. betae
Bradyrhizobium aff. betae
Indigofera spicata plant, roots and nodules
Indigofera spicata pods and flowers
Bradyrhizobium aff. elkanii nodules on Indigofera spicata
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Indigofera suffruticosa leaves
Indigofera suffruticosa flowers
Nodule on Indigofera suffruticosa
Associated with:
Bradyrhizobium aff. vignae
Bradyrhizobium aff. vignae
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Leucaena leucocephala Mesorhizobium/Rhizobium nodules
Leucaena leucocephala with Ensifer aff. glycinis nodules
Ensifer aff. glycinis nodules Leucaena leucocephala
Associated with:
Ensifer aff. glycinis
Ensifer aff. glycinis
Mesorhizobium aff. acaciae
Mesorhizobium aff. acaciae
Rhizobium aff. indigoferae
Rhizobium aff. indigoferae
Macroptilium lathyroides
Macroptilium lathyroides flowers
Bradyrhizobium aff. elkanii nodules on Macroptilium lathyroides
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Medicago sativa plant and roots
Medicago sativa roots and nodule
Ensifer aff. alkalisoli/medicae on roots of Medicago sativa
Associated with:
Ensifer aff. alkalisoli/medicae
Ensifer aff. alkalisoli/medicae
Mimosa pudica plant and roots
Mimosa pudica flowers
Cupriavidus aff. oxalaticus nodules on Mimosa pudica
Associated with:
Cupriavidus aff. oxalaticus
Cupriavidus aff. oxalaticus
Neonotonia wightii plant and roots
Neonotonia wightii flowers
Rhizobium aff. alamii nodules on Neonotonia wightii
Associated with:
Rhizobium aff. alamii
Rhizobium aff. alamii
Pachyrhizus erosus vine
Pachyrhizus erosus pods
Nodule on Pachyrhizus erosus
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. vignae
Bradyrhizobium aff. vignae
Phaseolus vulgaris 'Provider' plant and roots
Phaseolus vulgaris 'Provider' roots and nodules of Rhizobium aff. indigoferae
Nodules of Rhizobium aff. indigoferae on Phaseolus vulgaris 'Provider'
Associated with:
Rhizobium aff. indigoferae
Rhizobium aff. indigoferae
Psophocarpus tetragonolobus fruit
Psophocarpus tetragonolobus flower
Nodule of Bradyrhizobium aff. elkanii on Psophocarpus tetragonolobus
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Vigna unguiculata
Vigna unguiculata roots and nodules
Nodule of Bradyrhizobium aff. elkanii on Vigna unguiculata
Associated with:
Bradyrhizobium aff. elkanii
Bradyrhizobium aff. elkanii
Vigna cultivar (Longbean)
Nodules of Bradyrhizobium aff. vignae on Vigna cultivar
Nodules of Bradyrhizobium aff. vignae on Vigna cultivar
Associated with:
Bradyrhizobium aff. vignae
Bradyrhizobium aff. vignae
Agrobacterium tumefaciens
Agrobacterium tumefaciens
Unidentified legume plant and roots
Unidentified legume leaves
Nodules of Ensifer aff. alkalisoli/medicae on unidentified legume
Associated with:
Ensifer aff. alkalisoli/medicae
Ensifer aff. alkalisoli/medicae
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