Publisher Summary The chapter presents a discussion on plant growth-regulating (PGR)
substances in the rhizosphere, with emphasis on microbial production and functions. The …

Plant roots form intracellular symbioses with fungi and bacteria resulting in arbuscular
mycorrhiza and nitrogen-fixing root nodules, respectively. A novel receptor like-kinase has …

Details the various physiological responses in plants caused by microbially derived
phytohormones--examining the microbial synthesis of the five primary classes of plant …

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 …

Development of the Rhizobium-legume symbiosis is controlled by the host plant, although
the underlying mechanisms have remained obscure. A mutant in the annual legume …

Plant cells engage in mutualistic and parasitic endosymbioses with a wide variety of
microoganisms, ranging from Gram-negative (Rhizobium, Nostoc) and Gram-positive …

Nod factors secreted by Rhizobium leguminosarum bv. viciae induce root hair deformation,
involving a reinitiation of tip growth, and the formation of nodule primordia in Vicia sativa …

Exogenous ethylene inhibited nodulation on the primary and lateral roots of pea, Pisum
sativum L. cv Sparkle. Ethylene was more inhibitory to nodule formation than to root growth; …

We propose a model depicting the development of nodulation and arbuscular mycorrhizae.
Both processes are dissected into many steps, using Pisum sativum L. nodulation mutants …

Model genetics and genomics have been developed as tools for studying the third largest
family of flowering plants, the Leguminosae, which includes important crop plants …