ArticlePloS one2012
Nodulation in Dimorphandra wilsonii Rizz. (Caesalpinioideae), a threatened species native to the Brazilian Cerrado.
Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 42 citations in OpenAlex.
- The symbiosome-a transient organelle in evolution.Journal of experimental botany · 2024Article
- Advances in Legume Systematics 14. Classification of Caesalpinioideae. Part 2: Higher-level classification.PhytoKeys · 2024Article
- Dancing to a different tune, can we switch from chemical to biological nitrogen fixation for sustainable food security?PLoS biology · 2023Article
- The innovation of the symbiosome has enhanced the evolutionary stability of nitrogen fixation in legumes.The New phytologist · 2022Article
- Molecular Mechanisms of Intercellular Rhizobial Infection: Novel Findings of an Ancient Process.Frontiers in plant science · 2022Review
- A Genomotaxonomy View of theFrontiers in microbiology · 2019Article
- Specificity in Legume-Rhizobia Symbioses.International journal of molecular sciences · 2017Review
- The spread of Bradyrhizobium lineages across host legume clades: from Abarema to Zygia.Microbial ecology · 2015Article
- High-quality permanent draft genome sequence of Bradyrhizobium sp. Tv2a.2, a microsymbiont of Tachigali versicolor discovered in Barro Colorado Island of Panama.Standards in genomic sciences · 2015Article
- Genetic diversity and evolution of Bradyrhizobium populations nodulating Erythrophleum fordii, an evergreen tree indigenous to the southern subtropical region of China.Applied and environmental microbiology · 2014Article
Corrections and comments
- Erratum issued
Authors and funding
13 authors at 6 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The threatened caesalpinioid legume Dimorphandra wilsonii, which is native to the Cerrado biome in Brazil, was examined for its nodulation and N(2)-fixing ability, and was compared with another, less-threatened species, D. jorgei. Nodulation and potential N(2) fixation was shown on seedlings that had been inoculated singly with five bradyrhizobial isolates from mature D. wilsonii nodules. The infection of D. wilsonii by two of these strains (Dw10.1, Dw12.5) was followed in detail using light and transmission electron microscopy, and was compared with that of D. jorgei by Bradyrhizobium strain SEMIA6099. The roots of D. wilsonii were infected via small transient root hairs at 42 d after inoculation (dai), and nodules were sufficiently mature at 63 dai to express nitrogenase protein. Similar infection and nodule developmental processes were observed in D. jorgei. The bacteroids in mature Dimorphandra nodules were enclosed in plant cell wall material containing a homogalacturonan (pectic) epitope that was recognized by the monoclonal antibody JIM5. Analysis of sequences of their rrs (16S rRNA) genes and their ITS regions showed that the five D. wilsonii strains, although related to SEMIA6099, may constitute five undescribed species of genus Bradyrhizobium, whilst their nodD and nifH gene sequences showed that they formed clearly separated branches from other rhizobial strains. This is the first study to describe in full the N(2)-fixing symbiotic interaction between defined rhizobial strains and legumes in the sub-family Caesalpinioideae. This information will hopefully assist in the conservation of the threatened species D. wilsonii.
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