A Tnt1-insertion mutant population of Medicago truncatula ecotype R108 was screened for defects in nodulation and symbiotic nitrogen fixation. Primary screening of 9,300 mutant lines yielded 317 lines with putative defects in nodule development and/or nitrogen fixation. Of these, 230 lines were rescreened, and 156 lines were confirmed with defective symbiotic nitrogen fixation. Mutants were sor...

Heterotrimeric G proteins comprising Gα, Gβ, and Gγ subunits regulate many fundamental growth and development processes in all eukaryotes. Plants possess a relatively limited number of G-protein components compared with mammalian systems, and their detailed functional characterization has been performed mostly in Arabidopsis (Arabidopsis thaliana) and rice (Oryza sativa). However, the presence ...

Improved seeds are increasingly being sown in agricultural practice. Such treatments play different roles depending on the substances used. They most often protect and sprouts from abiotic biotic stresses, but not only. Coating technology is one of methods seed improvement, requiring selection appropriate components. The purpose pot experiment was to test efficacy two coatings (C D) a commercia...

The objective was to evaluate the agronomic traits of soybean as a function inoculation, co-inoculation and N doses in Eutroferric RED OXSOL. design randomized blocks 4x4 factorial scheme, with four types inoculation (0 = 0; 2 4.5; 4 9 8 % 18 kg ha-1). No significant differences were found for plant height, number pods per plant, grains pod, nitrogen accumulation grain yield. mean nodules highe...

Soybean is a legume crop rich in protein and oil. Symbiotic nitrogen fixation plays an important role the growth of soybean. The type-III effectors such as NopT NopP are signaling factors for establishment symbiosis In this study, analysis nodulation soybean after inoculation with HH103ΩNopT, HH103ΩNopP, HH103ΩNopT&NopP indicated crosstalking between NopP. Further, we aimed to identify gene...

Heterotrimeric G proteins comprising Ga, Gb, and Gg subunits regulate many fundamental growth and development processes in all eukaryotes. Plants possess a relatively limited number of G-protein components compared with mammalian systems, and their detailed functional characterization has been performed mostly in Arabidopsis (Arabidopsis thaliana) and rice (Oryza sativa). However, the presence ...

In a previous communication (King and Nagelschmidt, 1945), analytical data were given for the amount and composition of the dust found in the lungs of 54 coalworkers from South Wales. Coal, total silica, quartz, mica, and kaolin were determined as the percentages of dried lung tissue, and the results were related to type of work and degree of pathology. The main findings were the following: (1)...

Autoregulatory negative-feedback loops play important roles in fine-balancing tissue and organ development. Such loops are composed of short-range intercellular signaling pathways via cell-cell communications. On the other hand, leguminous plants use a long-distance negative-feedback system involving root-shoot communication to control the number of root nodules, root lateral organs that harbor...