Lotononis angolensis forms nitrogen fixing, lupinoid nodules with phylogenetically unique, fast-growing, pink-pigmented bacteria, which do not nodulate L. bainesii or L. listii

R.J. Yates; J.G. Howieson; W.G. Reeve; K.G. Nandasena; I. Law; L. Bräu; J.K. Ardley; H.M. Nistelberger; D. Real; G.W. O'Hara

doi:10.1016/j.soilbio.2007.01.025

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Lotononis angolensis forms nitrogen fixing, lupinoid nodules with phylogenetically unique, fast-growing, pink-pigmented bacteria, which do not nodulate L. bainesii or L. listii

Journal article

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Lotononis angolensis forms nitrogen fixing, lupinoid nodules with phylogenetically unique, fast-growing, pink-pigmented bacteria, which do not nodulate L. bainesii or L. listii

R.J. Yates, J.G. Howieson, W.G. Reeve, K.G. Nandasena, I. Law, L. Bräu, J.K. Ardley, H.M. Nistelberger, D. Real and G.W. O'Hara

Soil Biology and Biochemistry, Vol.39(7), pp.1680-1688

2007

DOI: https://doi.org/10.1016/j.soilbio.2007.01.025

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Abstract

Root-nodule bacteria that nodulate the legume genus Lotononis are being investigated to develop new forage species for agriculture. Bacteria isolated from nodules of Lotononis angolensis were fast-growing, highly mucoid and pink-pigmented, and on the basis of 16S rRNA phylogeny <94% related to other genera in the Alphaproteobacteria. Root-nodule bacteria isolated from other Lotononis species (L. bainesii, L. solitudinis and L. listii) resembled the more common dry, slow-growing, pink-pigmented rhizobia previously described for L. bainesii. These isolates could be attributed to the Methylobacterium genus, although not to the type species Methylobacterium nodulans. Further differences were uncovered with nodulation studies revealing that nodule isolates from L. angolensis were effective at nitrogen fixation on their host plant, but could nodulate neither L. bainesii nor L. listii. Reciprocal tests showed isolates from L. bainesii, L. listii and L. solitudinis were incapable of nodulating L. angolensis effectively. Nodule morphology for L. bainesii, L. angolensis and L. listii was characteristically lupinoid, with little structural divergence between the species, and with nodules eventually enclosing the entire root.

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Title: Lotononis angolensis forms nitrogen fixing, lupinoid nodules with phylogenetically unique, fast-growing, pink-pigmented bacteria, which do not nodulate L. bainesii or L. listii
Authors/Creators: R.J. Yates (Author/Creator) - Murdoch University
J.G. Howieson (Author/Creator) - Murdoch University
W.G. Reeve (Author/Creator) - Murdoch University
K.G. Nandasena (Author/Creator) - Murdoch University
I. Law (Author/Creator) - Wisconsin Disability Association
L. Bräu (Author/Creator) - Murdoch University
J.K. Ardley (Author/Creator) - Murdoch University
H.M. Nistelberger (Author/Creator) - Murdoch University
D. Real (Author/Creator) - Murdoch University
G.W. O'Hara (Author/Creator)
Publication Details: Soil Biology and Biochemistry, Vol.39(7), pp.1680-1688
Publisher: Elsevier BV
Identifiers: 991005540303907891
Copyright: © 2007 Elsevier BV
Murdoch Affiliation: Centre for Rhizobium Studies
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.97 Plant Pathology; 3.97.892 Rhizobium-Legume Symbiosis
Web Of Science research areas: Soil Science
ESI research areas: Agricultural Sciences