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- Publications
- Influence
Developmental biology of legume nodulation
- A. Hirsch
- Biology
- 1 October 1992
SUMMARY
Many legumes respond to Rhizobium inoculation by developing unique structures known as nodules on their roots. The development of a legume nodule in which rhizobia convert atmospheric N2… Expand
Legume-nodulating betaproteobacteria: diversity, host range, and future prospects.
- P. Gyaneshwar, A. Hirsch, +9 authors E. James
- Biology, Medicine
- Molecular plant-microbe interactions : MPMI
- 13 October 2011
Rhizobia form specialized nodules on the roots of legumes (family Fabaceae) and fix nitrogen in exchange for carbon from the host plant. Although the majority of legumes form symbioses with members… Expand
Studying early nodulin gene ENOD40 expression and induction by nodulation factor and cytokinin in transgenic alfalfa.
ENOD40, an early nodulin gene, is expressed following inoculation with Rhizobium meliloti or by adding R. meliloti-produced nodulation (Nod) factors or the plant hormone cytokinin to uninoculated… Expand
Early nodulin genes are induced in alfalfa root outgrowths elicited by auxin transport inhibitors.
- A. Hirsch, T. V. Bhuvaneswari, J. Torrey, T. Bisseling
- Biology, Medicine
- Proceedings of the National Academy of Sciences…
- 1 February 1989
Rhizobium nod genes are essential for root hair deformation and cortical cell division, early stages in the development of nitrogen-fixing root nodules. Nod(-) mutants are unable to initiate nodules… Expand
Investigations of Rhizobium biofilm formation.
- N. A. Fujishige, Neel N. Kapadia, Peter De Hoff, A. Hirsch
- Biology, Medicine
- FEMS microbiology ecology
- 1 May 2006
The development of nitrogen-fixing nodules of the Rhizobium-legume symbiosis, especially the early stages of root hair deformation and curling, infection thread formation, and nodule initiation, has… Expand
What makes the rhizobia-legume symbiosis so special?
“We are too prone to give all credit to him who places the last piece in the puzzle and to forget that all his predecessors had prepared the way.”
—[Edwin W. Fred, Ira L. Baldwin, and Elizabeth… Expand
Phylogenetic Analysis of Burkholderia Species by Multilocus Sequence Analysis
- P. Estrada-de los Santos, P. Vinuesa, L. Martínez-Aguilar, A. Hirsch, J. Caballero-Mellado
- Biology, Medicine
- Current Microbiology
- 13 February 2013
Burkholderia comprises more than 60 species of environmental, clinical, and agro-biotechnological relevance. Previous phylogenetic analyses of 16S rRNA, recA, gyrB, rpoB, and acdS gene sequences as… Expand
Non-Frankia Actinomycetes Isolated from Surface-Sterilized Roots of Casuarina equisetifolia Fix Nitrogen
- M. Valdés, N. Pérez, +4 authors A. Hirsch
- Biology, Medicine
- Applied and Environmental Microbiology
- 1 January 2005
ABSTRACT Based on partial 16S sequences, we previously described a novel group of nonsymbiotic, acetylene reduction activity-positive actinomycetes which were isolated from surface-sterilized roots… Expand
MOLECULAR SIGNALS AND RECEPTORS: CONTROLLING RHIZOSPHERE INTERACTIONS BETWEEN PLANTS AND OTHER ORGANISMS
- A. Hirsch, W. D. Bauer, D. Bird, J. Cullimore, B. Tyler, J. Yoder
- Biology
- 1 April 2003
Rhizosphere interactions are affected by many different regulatory signals. As yet, however, only a few have been identified. Signals, by definition, contain information, react with a receptor, and… Expand
Ultrastructural analysis of ineffective alfalfa nodules formed by nif::Tn5 mutants of Rhizobium meliloti.
- A. Hirsch, M. Bang, F. Ausubel
- Biology, Medicine
- Journal of bacteriology
- 1 July 1983
Ineffective alfalfa nodules formed by Rhizobium meliloti nif::Tn5 mutants were examined by light and electron microscopy. R. meliloti nifH::Tn5 mutants formed nodules that were similar in structure… Expand
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