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 9 of 9 for “"Crown gall"”.
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Biological Control Agent Rhizobium vitis, ARK-1 Reduces Incidence and Severity of Grapevine Crown Gall in Virginia
Crown gall of grapevine (Vitis spp.) is a serious and economically important disease caused by the bacterial pathogen Rhizobium vitis, which transforms healthy plant cell genomes leading to hypertrophic and hyperplastic growth of affected plant cells. Recent studies have documented a strong …
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A study of the Project for American Studies in the Secondary Schools and its effect on curricular change
… spermidine and spermidine, on growth of crown gall tumors, to assay levels of spermidine and spermine in normal and crown gall tumor tissue and to determine the effects of selected anti-tumor compounds on growth of crown gall tumors as well as on the endogenous levels of the polyamines in …
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Efficacy of the biological control agent Rhizobium vitis ARK-1 against tumorigenic Rhizobium vitis, the causal agent of grapevine crown gall
Grapevine crown gall causes significant economic damage in vineyards and nurseries worldwide. Infected vines are not curable due to irreversible genomic transformation by the tumorigenic bacterium Rhizobium vitis. Crown gall results in a gradual decline in yield and vine vigor, then the complete …
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Risposte di resistenza a batteri fitopatogeni di importanti specie coltivate indotte da molecole segnale di diversa natura
… of tomato (Ralstonia solanacearum) and grapevine crown gall (Agrobacterium vitis). A virulent strain of R. solanacearum race 3 was inhibited by the antagonist on plate. When the pathogen was inoculated 48 h after their application to the root apparatus of tomato plants grown in a climatic chamber, …
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TROPANE ALKALOID PRODUCTION BY DATURA
… than the cell cultures. It was found that crown gall bearing Datura plants possessed an altered tropane alkaloid biosynthetic potential. Differences were found in total alkaloids, distribution of alkaloids and relative proportions of atropine to scopolamine between crown gall bearing and …
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Elucidating the roles of the diguanylate cyclases CelR and avmA in attachment and cellulose synthesis with the response regulator divK in Agrobacterium tumefaciens
Agrobacterium tumefaciens, the causative agent of crown gall disease in plants, physically interacts with plant cells to remain anchored within the nutrient-rich rhizosphere. Part of this interaction involves the production of cellulose fibrils by the bacteria, leading to the aggregation of the …
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Characterization of an agrobacterial plasmid inducible for transfer by mannopine and evolution of the core replication and transfer functions of repabc plasmids with class i quorum-sensing and transfer systems
… all of the genes responsible for inducing crown gall tumors and hairy roots on susceptible plant hosts. These plasmids also encode the genes required for production by the plant, and utilization by the bacteria of unique carbon conjugates called opines. Similarly, repABC plasmids in species …