(Nodulation, arbuscular mycorrhizal colonization and growth of some legumes native from Brazil). The effects of rhizobial and mycorrhizal inoculation, nitrogen and phosphorus fertilization on nodulation, mycorrhizal colonization and initial growth were examined in Brazilian native plants, Enterolobium contortisiliquum (Vell. Conc.) Morong, Inga laurina (Sw.) Willd., Lonchocarpus muehlbergianus ...

The objective was to evaluate the inoculation, co-inoculation with bacteria B. japonicum and A. brasilense in combination application of N doses on agronomic characteristics soybean. design used randomized blocks a 4x4 factorial scheme, four types inoculation (absence bacteria, brasilense) (0 % = 0; 2 4.5; 4 9 8 18 kg ha-1), replications. increasing above 2% promoted reduction number nodules fo...

Abstract Effects of Meloidogyne incognita , Pseudomonas syringae pv. pisi and Rhizobium leguminosarum were studied on growth biochemical parameters pea ( Pisum sativum L.) in three soil types. Plants grown 20% fly ash attained higher plant growth, chlorophyll carotenoid followed by loam sand. Inoculation R. resulted increased nodulation, over control. Root nodulation proline contents high plant...

Mineral oil, peanut oil and soybean oil were compared with water and gum arabic for their suitability as adhesives for seed inoculation with peat inoculants. Inoculated seeds were stored at 4, 28 and 34°C, and sampled after 1, 3 and 9 days to determine the survival of rhizobia. Germination and nodulation tests were performed on the inoculated seeds. Results showed that oils were suitable adhesi...

The response of pea (Pisum sativum cv. Avola) to arbuscular micorrizal fungi (AM) species Glomus mosseae and Glomus intraradices and Rhizobium leguminosarum bv. Viciae, strain D293 regarding growth, nodulation and nitrogen fixing activity was studied. Pea plants (Pisum sativum cv. Avola) were grown in a glasshouse until flowering stage (35 days) in 4 kg plastic pots using leached cinnamonic for...

Four putative apyrase genes were identified from the model legume Medicago truncatula. Two of the genes identified from M. truncatula (Mtapy1 and Mtapy4) are expressed in roots and are inducible within 3 h after inoculation with Sinorhizobium meliloti. The level of mRNA expression of the other two putative apyrases, Mtapy2 and Mtapy3, was unaffected by rhizobial inoculation. Screening of a bact...

It was previously reported that the hypernodulating soybean (Glycine max [L.] Merr.) mutants, derived from the cultivar Williams, had higher root concentration of isoflavonoid compounds (daidzein, genistein, and coumestrol) than did Williams at 9 to 12 days after inoculation with Bradyrhizobium japonicum. These compounds are known inducers of nod genes in B. japonicum and may be involved in sub...

Sinorhizobium sp. BL3 forms symbiotic interactions with mung bean (Vigna radiata) and contains lrpL-acdS genes, which encode the 1-aminocyclopropane-1-carboxylate (ACC) deaminase enzyme that cleaves ACC, a precursor of plant ethylene synthesis. Since ethylene interferes with nodule formation in some legumes and plays a role in senescence in plant cells, BL3-enhancing ACC deaminase activity (BL3...

CLE (CLAVATA3/Embryo Surrounding Region) peptides regulate different aspects of plant development. In legumes, are known as key components autoregulation nodulation (AON), which systemically controls the number nitrogen-fixing nodules formed on root upon symbiotic interaction with soil bacteria rhizobia. produced in response to rhizobia inoculation and transported via xylem shoot, where they re...