Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 88 for “"nodulation"”.
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Rhizobial infection in nodulation
Nodulation is a symbiosis between plants and bacteria called rhizobia which leads to the formation of a lateral organ called a nodule where nitrogen fixation occurs. Nodulation can be divided into two developmental programmes, rhizobial infection, and nodule organogenesis, both of which are …
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Soybean (Glycine max (L.) Merr.); nodulation mutant characterization: Role of isoflavonoid, nitrate, and abscisic acid in nodulation control
Isoflavonoids (daidzein, genistein, and coumestrol) are known to be inducers of nod genes in Bradyrhizobium japonicum. This study evaluated the effect of inoculation and nitrogen on isoflavonoid concentration in soybean (Glycine max (L.) Merr.) root extracts from selected hypernodulating mutants …
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The role of CLE peptides during nodulation
… expression of plant and bacterial genes. Nodulation can be divided in two developmental pathways, bacterial infection and organ initiation, and the two merge when the bacteria are taken up by the plant cells. Two types of nodules have been characterized, determinate nodules such as …
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Phylogeny of the Resistance-Nodulation-Cell Division (RND) Superfamily
… spans all domains to understand the Resistance-Nodulation-Cell Division (RND) superfamily’s evolution and points of divergence. Several members of the superfamily are involved in both the acquisition and intrinsic resistance to antibiotics despite origins that are ubiquitous and ancient compared …
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Analysis of resistance nodulation division efflux pumps in Acinetobacter baumannii
… and the most commonly expressed resistance nodulation division (RND) efflux pump was adeFGH. A collection of A. baumannii isolates from the environment showed decreased susceptibility to at least three antibiotics and expression of three RND efflux pumps (adeFGH, adeABC, adeIJK). From the …
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Improving soybean using remote sensing, automated irrigation, and promiscuous nodulation
… screening methods for SCN. <br /> Promiscuous Nodulation <br /> Soybean (Glycine max.) is an important source of oil and protein for the U.S.A. and has the potential to be a staple crop in Africa because of its high protein seed and the benefits of nitrogen fixation from the symbiotic …
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The role of rhizobium meliloti exopolysaccharide in nodulation of alfalfa
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1987.
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Actinorhizal Plant Nodulation and Nitrogen Fixation in Natural and Experimental Systems
… seedlings. This treatment increased nodulation 5- to 10-fold in greenhouse experiments and also of A. glutinosa in a field experiment.
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A Study of the Genetics of Root Nodulation in Pigeonpea (Cajanus cajan) Using Indigenous Rhizobia
… rhizobial strains that are associated with root nodulation in pigeonpea from diverse locations across South Africa (ii) perform molecular characterization of the rhizobia that are associated with root nodulation in pigeonpea from diverse locations in South Africa (iii) to sequence the whole …
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Characterization of the Role of miR156-SPL12 Regulatory Module in Root Architecture and Stress Response in Medicago sativa (alfalfa)
… plants overexpressing miR156 display increased nodulation, nitrogen fixation, and root regenerative capacity during vegetative propagation. In alfalfa, transcripts of 11 SPLs, including SPL12, are targeted by miR156. Our understanding of the functions of SPLs and their mode of action in …
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Stressed Out: Resistance-nodulation-division (RND) and Major Facilitator Superfamily (MFS) Efflux Pump Mediated Survival Strategies of Acinetobacter baumannii
Originally discovered in soil microbial communities, reports of genus Acinetobacter associated infections started to increase around 1977 and continued to climb to frightening heights for the next 20 years resulting in Acinetobacter becoming a high priority target for antibiotic resistance …
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The ecology and nitrogen-fixing ability of selected Aspalathus spp. in fynbos ecosystems
… Total nitrogen however showed no trends. Nodulation of 15 Aspalathus spp. at 11 study sites showed varying amounts of nodulation although all these species nodulated well under pot culture. Nodulation of three Aspalathus spp. at three seasonal study sites was followed over the course of …
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Impact of environmental conditions on expression levels of resistance-nodulation-division (RND) efflux pumps and outer membrane porins in Acinetobacter baumannii
… resistance determinants, such as Resistance-Nodulation-Cell Division (RND) efflux pumps and outer membrane proteins, is regarded to be amongst the most important strategies in the arsenal of this pathogen. Despite considerable efforts being dedicated in the attempt to understand the …
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