ABSTRACT
Los hongos micorrízicos arbusculares (HMA) son biotrofos obligados que viven en asociación simbiótica con las raíces de las plantas. Se encuentran entre los microorganismos del suelo más extendidos que proporcionan a la planta huésped nutrientes y protección contra patógenos. Las prácticas agrícolas modernas, como la labranza frecuente, el alto empleo de fertilización inorgánica pesticidas junto con condiciones climáticas cambiantes debido al calentamiento global, tienen enormes impactos en la colonización de los HMA, la interacción con las plantas y la productividad de los cultivos. Los HMA afectan positivamente la tolerancia de las plantas al estrés biótico y abiótico, a los ecosistemas severos y sus patógenos al alterar la estructura de las raíces, la exudación, la microflora de la rizosfera, la producción de antifúngicos y antibacterianos, y al competir con los patógenos por la absorción de nutrientes. Por lo tanto, juegan un papel importante en el crecimiento, la productividad y la calidad de las plantas. Además, el efecto de un fungicida varía según su modo de acción y las especies de HMA asociadas, lo que sugiere que estos hongos tienen un gran potencial como herramienta para la agricultura sostenible ecológica en el actual escenario de calentamiento global.
Arbuscular Mycorrhizal Fungi (AMF) are obligate biotrophs living in symbiotic association with roots of plants. They are among the most widespread soil microorganisms that provide the host plant with nutrients and pathogen protection. Modern farming practices like frequent tillage, high input inorganic fertilization and pesticide along changing climatic conditions due to global warming, have huge impacts on AMF colonization, interaction with plants and on crop productivity. AMF positively affect the plant tolerance to biotic and abiotic stresses, harsh ecosystems and plant pathogens by altering root structure, exudation, rhizosphere microflora, production of antifungals, antibacterials, and competing with pathogens for nutrient uptake. Thus, it plays a significant role in plant growth, productivity and quality. Further, the effect of a fungicide is varied depending on its mode of action and the associated AMF species, suggesting that these fungi have a strong potential as a tool for eco-friendly sustainable farming in the present scenario of global warming.
Subject(s)
Global Warming , Agriculture , FungiABSTRACT
Background: Diabetes, a chronic disease, is presently a rapidly growing epidemic globally. The risk of diabetes type 2 is greatly increasing with change in lifestyle factors, urbanization, high blood pressure, overweight or obesity, physical inactivity and poor diet. It’s one of the reasons for premature death and disability and the number of cases are drastically increasing every year.Methods: 81 subjects above 18 years of age were considered for the screening. Random blood glucose levels were tested using the Thyrocare Sugar scan glucometer strips. Physical activity data was collected using a questionnaire. Based on the extent of physical activity, the subjects we grouped into three different categories. Data was analyzed and expressed using basic statistical tools in MS Excel 2007.Results: 6.17% of the rural population of Kendri, with mean age 47.4 years, had undiagnosed diabetes. The mean blood glucose level in diabetes positive cases was 279.8 mg/dL. A correlation of random blood glucose levels of the subjects with the extent of their physical activity was observed, where a decrease in physical activity/increase in physical inactivity showed an increase in blood glucose levels.Conclusions: From our study we conclude that undiagnosed diabetes is prevalent amongst the rural populations of Kendri, Chhattisgarh and low physical activity correlated with an increase of blood glucose levels, suggesting an urgent need to create health awareness, with emphasis on increase in physical activity, literacy and diabetes management, obesity, specifically among the illiterate and underprivileged rural populations.