Mexican maize landraces, produced for local consumption, are adapted to different environmental conditions, and their yield is affected by abiotic and biotic factors, including the use of agrochemicals. The search for sustainable alternatives to agrochemicals includes the study of the culturable microbial communities. In this study, the fungal communities associated with 2 Mexican maize landraces reddish and bluish "conical cobs" were found to be comprised of Ascomycota fungi, represented by 89 strains within 6 orders (Pleosporales, Hypocreales, Onygenales, Capnodiales, Helotiales, and Eurotiales) and 16 genera. Cellulases and metallophores production were the primary enzymatic products and plant growth-promoting activities were detected among the isolates. Penicillium, Didymella, and Fusarium strains had the most active enzymatic and plant growth promoting activities, however, Aspergillus sp. HES2-2.2, Talaromyces sp. RS1-7, and Penicillium sp. HFS3-3 showed antagonistic activity against the four phytopathogenic Fusarium strains Fusarium oxysporum, Fusarium sambucinum, Fusarium fujikuroi and Fusarium incarnatum-equiseti and also a high and diverse production of enzymatic and plant growth promoting activities; here we identified fungal strains as candidates to promote maize growth.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00203-021-02680-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Influence of Temperature and Photoperiod on Survival and Development of (Lepidoptera: Crambidae).
Insects
November 2024
Department of Entomology, LSU Agricultural Center, Baton Rouge, LA 70803, USA.
The Mexican rice borer, (Lepidoptera: Crambidae) is an economically important pest of sugarcane, rice, and corn in Louisiana, Texas, and Mexico. This pest is considered invasive in the US and is expanding its range northward. Due to its subtropical origin, 's northern distribution might be limited by cold tolerance.
View Article and Find Full Text PDFIndirect Fortification of Traditional Nixtamalized Tortillas with Nixtamalized Corn Flours.
Foods
December 2024
Departamento de Nanotecnología, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Campus Juriquilla, Santiago de Querétaro C.P. 76230, Querétaro, Mexico.
Background: This work focused on the study of the indirect fortification of Mexican tortillas made from nixtamalized masa (NM) with nixtamalized commercial corn flour (NCC-F) fortified with Zn, Fe, vitamins and folic acid.
Methods: The chemical proximate values (CPV), ash content, mineral composition by inductively coupled plasma, in vitro protein digestibility (PD), protein digestibility-corrected amino acid score (PDCAAS), the total starch content, the resistant starch (RS) content in nixtamalized corn tortillas (NC-T) and nixtamalized commercial corn flour tortillas (NCCF-T) and the contribution of tortillas prepared with a mixture of NM and NCC-F (75:25 and 50:50, NM:NCC-F) to the recommended dietary intake (RDI) of minerals and vitamins were determined.
Results: No significant differences ( < 0.
Maize consumption and circulating aflatoxin levels in Mexican middle- and older-aged adults: a cross-sectional analysis.
Am J Clin Nutr
December 2024
Center for Research on Population Health, National Institute of Public Health, Cuernavaca, Mexico; Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, United States. Electronic address:
Background: Maize is frequently contaminated by aflatoxin B (AFB), an established liver carcinogen.
Objectives: The objective of this study is to estimate the effect of maize and maize tortilla consumption on AFB-lysine adduct (AFB-lys) concentrations in middle- and older-aged adults living in south and eastern Mexico.
Methods: We conducted a cross-sectional analysis in a representative sample of 915 adults aged ≥40 y living in south and eastern Mexico in 2018-2019.
Advancing nitrogen nutrition index estimation in summer maize using continuous wavelet transform.
Front Plant Sci
November 2024
Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, Henan, China.
Rapid and non-destructive diagnosis of plant nitrogen (N) status is crucial to optimize N management during the growth of summer maize. This study aimed to evaluate the effectiveness of continuous wavelet analysis (CWA) in estimating the nitrogen nutrition index (NNI), to determine the most suitable wavelet analysis method, and to identify the most sensitive wavelet features across the visible to near-infrared spectrum (325-1,025 nm) for accurate NNI estimation. Field experiments were conducted across two sites (Kaifeng and Weishi) during the 2022 and 2023 growing seasons using four summer maize cultivars (XD20, ZD958, DH661, and DH605) under varying N application rates (0, 80, 160, 240, and 320 kg N ha).
View Article and Find Full Text PDFWeather deviations linked to undocumented migration and return between Mexico and the United States.
Proc Natl Acad Sci U S A
November 2024
Department of Sociology and School of Public and International Affairs, Princeton University, Princeton, NJ 08544.
Article Synopsis
- The study investigates how changing climate leads to extreme weather conditions that affect undocumented migration patterns between Mexico and the U.S.
- Data from over 48,000 individuals in 84 Mexican agricultural communities highlights that severe drought increases the likelihood of migrating to the U.S., while persistent extreme weather reduces chances of returning home.
- The research suggests that as climate change intensifies weather events, it will further drive clandestine migration and expose individuals to greater risks during their journey across borders.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!