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651 results for “Legumes”

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dryad36/100

Genomic relationships of Glycine remota, a recently discovered perennial relative of soybean, within the legume genus Glycine

The legume genus, Glycine, which includes the Asian annual cultivated soybean, also includes a group of Australian perennial species comprising the subgenus Glycine. Because the subgenus Glycine represents the tertiary gene pool for one of the world's most important crops, the group has been the target of collection and study for decades, resulting in a steady growth in the number of formally recognized species, from six in the 1970s to over 20 at present, as well as a number of additional informal taxa. These studies have also produced a system of nuclear diploid "genome groups" corresponding to clades in molecular phylogenies. The aptly named G. remota is known only from a single isolated population in the Kimberley region of northwestern Australia and was named only in 2015. The species is unique within Glycine in having unifoliolate leaves; its discoverers hypothesized that G. remota, if diploid, is related to species of the I-genome that are also native to the Kimberley region. We produced low-coverage short-read genome sequencing data from an herbarium specimen of G. remota. Genome size estimates from the sequencing data suggest that G. remota is a diploid, while ploidy estimation is inconclusive likely due to the history of whole genome duplication in Glycine. Phylogenomic analyses of genome-wide SNPs, as well as phylogenetic analyses of the low copy nuclear gene (histone H3D), the entire ribosomal RNA cistron, and the internal transcribed spacer all placed the species unequivocally in the diploid I-genome clade. A complete plastome sequence was also generated and its placement with a plastome phylogeny is also consistent with membership in the I-genome.

opencc-zeroMar 2023View details →

dryad36/100

Data from: Rhizodeposition through root senescence and root exudation of atmospheric C and N by legumes is controlled by traits indicative of resource acquisition and root development

Legume crop production has many benefits for agricultural systems. Through the rhizodeposition process, they release a significant amount of C and N into the soil, increasing soil organic C and reducing the use of N fertilizer. Rhizodeposition is known as a dynamic process influenced by many factors. The aim of this study was to study the contribution of root exudation and root senescence to the rhizodeposition of atmospheric C and N during vegetative and reproductive growth in annual and perennial legumes and to understand how this is linked to the fixation capacities of C and N and root functional traits. An original approach that combined 13CO2 labeling and the 15N dilution method was developed to measure the rhizodeposition of atmospheric C and N throughout plant growth by two annual grain legumes (pea and faba bean) and two perennial forage legumes (white and crimson clovers). C rhizodeposition was found to increase proportionally with N rhizodeposition during reproductive development and the differences observed between species were related to the C and N fixation abilities. The use of root traits such as specific root length, root tissue density, and root dry matter content suggests a strong contribution of root exudation to C rhizodeposition at vegetative growth and a strong contribution of root senescence to both C and N rhizodeposition during reproductive growth. Synthesis: Both C and N rhizodeposition appeared to be controlled by traits indicative of resource acquisition and root development.

opencc-zeroApr 2023View details →

dryad36/100

Rhizobial inoculation experiments for the invasive legume Lupinus polyphyllus

Background and Aims: For invasive plant species that associate with mutualistic symbionts, partner quality can be critical to their invasion success. This might be particularly true for legumes that host nitrogen-fixing bacteria (rhizobia). Here, we examined the relative effectiveness of rhizobial strains on the invasive legume Lupinus polyphyllus. Methods: We isolated rhizobia from field populations of L. polyphyllus and conducted inoculation experiments in which we quantified plant growth in greenhouse and common-garden conditions. Results: Differences in nodulation and effectiveness in terms of increasing plant growth among rhizobial strains of the genus Bradyrhizobium were more pronounced in the greenhouse than in the common garden. All six rhizobial strains nodulated the host plant in greenhouse conditions, but one failed to nodulate in the common garden. Under greenhouse conditions, five rhizobial strains increased plant biomass by 66–110%, while one provided negligible benefits compared to control plants without rhizobia, suggesting that rhizobial identity might be critical to the invader's performance. However, the common-garden experiment revealed no differences in the effectiveness of rhizobial strains in terms of plant biomass, number of leaflets per leaf, height, root:shoot ratio, or survival. Moreover, the performance of rhizobia-inoculated plants in the common garden did not differ from plants without rhizobia, which may call into question the fitness benefits of rhizobia to field populations of this species. Conclusions: The discrepancies observed between the two environments highlight the importance of considering field-realistic growing conditions and multiple plant traits when assessing the potential growth benefits of symbiotic partners to host plants.

opencc-zeroJun 2023View details →

dryad36/100

Impact of multiple soil microbial inoculants on biomass and biomass allocation of the legume crop field pea (Fabaceae: Pisum sativum L.)

Food production is a global challenge and consequently, there is considerable interest in manipulating the rhizobiome using microbial inoculants (MI) to support sustainable agriculture. We investigated how three commercially-available types of plant growth-promoting MI, alone and in combination (B5: five species of Bacillus bacteria, GP: four species of Trichoderma fungi, N2: Paenibacillus polymyxa bacteria) impacted field pea (Fabales: Fabaceae, Pisum sativum L.) in the greenhouse and a two-year field experiment in the United States, North Dakota, NDSU Field Research station at Prosper ND. CON indicates controls that did not receive any MI and FC is the fertilizer control in the field experiment which also did not receive any MI. The dataset consists of data plant data from a 2-wk greenhouse experiment (GH 2wk), a 4-wk greenhouse experiment (GH 4wk), and a two-year field experiment (field). In the greenhouse, we found that effects of MI on plant performance varied, with positive effects of MI only apparent when plants were grown in the winter and likely under greater stress because they lacked nodules. Plants grown in the summer had nodules, and two-week-old MI plants had less root biomass and total plant weight than non-inoculated controls, but weight of four-week-old MI plants was similar to or greater than controls. In the field, the root-to-shoot biomass ratio was highest in non-inoculated controls, and positive effects of N2 on shoots and B5 on shoots and pod densities didn't translate into differences in pod weight or total plant weight. In most cases, plants inoculated with all three inoculants performed similarly to those receiving a single inoculant, while root colonization by arbuscular mycorrhizal fungi (AMF) was higher for B5 plants than plants in the other treatments. This research underscores the need to consider microbial and environmental context when evaluating MI.

opencc-zeroJul 2023View details →

dryad36/100

Data from: Silicon supplementation and jasmonate activation synergistically increase phenolic defences against a legume herbivore

The accumulation of silicon (Si) is widely reported to have anti-herbivore defensive properties in grasses. There is emerging, but fragmentary, evidence that Si could play a similar role in legumes. Here, we sought to understand the effects of Si supplementation on anti-herbivore defensive properties in lucerne (Medicago sativa), especially in relation to other potential defences (i.e. phenolics) and the phytohormone that regulates anti-herbivore defences, jasmonic acid or jasmonate (JA), which is also linked to Si accumulation. We determined how growth, root nodulation and chemistry (carbon, nitrogen and phenolic concentrations) of four genotypes of lucerne responded to Si supplementation, with and without the application of JA, and we used feeding assays to determine the subsequent effects on the feeding success of adult Sitona discoideus weevils. Si supplementation increased plant mass and root nodulation of M. sativa by 61% and 227%, respectively, and reduced relative consumption (RC) and frass production by S. discoideus by 38% and 30%, respectively. Si supplementation had no effect on foliar nitrogen concentrations, most likely due to the dilution effects of increased plant growth and foliar carbon. Phenolic concentrations were negatively correlated with leaf RC; RC also decreased by 34% when JA was applied to plants. When Si was combined with JA application, phenolics were significantly enhanced, demonstrating the potential to stimulate multiple anti-herbivore properties in M. sativa. The novel findings suggest that Si accumulation may play a more important role in legume resistance to herbivorous animals than previously thought. The ubiquity of soil Si and its emerging functional role in plant biology, including plant–animal interactions, suggest that these patterns could be common amongst legumes.

opencc-zeroJul 2023View details →

ClinicalTrials.gov36/100

The Impact of Legumes vs Corn-soy Flour on Environmental Enteric Dysfunction in Rural Malawian Children 6-11 Months

ClinicalTrials.gov study NCT02472262. IPD Sharing: Not stated. Countries: 1. Publications: 6.

restrictedIPD-UNDECIDEDFeb 2026View details →

ClinicalTrials.gov36/100

Effects of Replacing Red Meat With Legumes on Biomarkers of Chronic Diseases in Healthy Men (Leg4Life)

ClinicalTrials.gov study NCT04599920. IPD Sharing: NO. Countries: 1. Publications: 2.

closedIPD-NOFeb 2026View details →

dryad36/100