Publications by authors named "A Leija"
Article Synopsis
- The legume-rhizobia interaction is crucial for sustainable agriculture due to its role in nitrogen fixation, yet research on crop legumes, like common beans, is limited compared to model legumes.
- An analysis of ethyl methanesulphonate-induced mutants from the BAT 93 common bean genotype identified three non-nodulating mutants (1895, 2353, and 2114), which displayed variations in nodulation and growth depending on the presence of nitrate.
- Microscopic examinations showed distinct impairments in the initial symbiotic steps for each mutant, revealing issues such as abnormal root hair formations, blocked infection chamber development, and non-extending infection threads, highlighting the complexity of symbiotic nitrogen fixation in this important food crop.
Microbial communities respond to changes in environmental conditions; however, how compositional shifts affect ecosystem processes is still not well-understood and it is often assumed that different microbial communities will function equally under similar environmental conditions. We evaluated this assumption of functional redundancy using biological soil crusts (BSCs) from two arid ecosystems in Mexico with contrasting climate conditions (hot and cold deserts) following an experimental approach both in the field (reciprocal transplants) and in laboratory conditions (common garden), focusing on the community's composition and potential for nitrogen fixation. Potential of nitrogen fixation was assessed through the acetylene reduction assay.
View Article and Find Full Text PDFBackground: Cognitive interviewing is the practice of systematically collecting feedback about survey items from members of the priority population, with the goal of identifying and rectifying problems to increase the comprehensibility of the survey. Evidence is limited on the extent to which this method of pretesting improves survey items.
Objective: The current study examined the utility of incorporating cognitive interviewing to improve the Spanish translations of two measures of tobacco dependence.
Plants MADS-domain/AGL proteins constitute a large transcription factor (TF) family that controls the development of almost every plant organ. We performed a phylogeny of (. 500) MADS-domain proteins from Arabidopsis and four legume species.
View Article and Find Full Text PDFThe common-bean (Phaseolus vulgaris), a widely consumed legume, originated in Mesoamerica and expanded to South America, resulting in the development of two geographically distinct gene pools. Poor soil condition, including metal toxicity, are often constraints to common-bean crop production. Several P.
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