Josué Altamirano-Hernández

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Rice is one of the most important food crops in the world. Abiotic stresses directly or indirectly affect the physiological status of rice and negatively alter its overall metabolism. Drought in rain-fed, lowland ecosystems is particularly harmful to growth and yield. As with many other food crops, drought tolerance in rice is a polygenic trait in which(More)
Studies on Rhizobium-legume symbiosis show that trehalose content in nodules under drought stress correlates positively with an increase in plant tolerance to this stress. Fewer reports describe trehalose accumulation in mycorrhiza where, in contrast with rhizobia, there is no flux of carbohydrates from the microsymbiont to the plant. However, the trehalose(More)
The first direct synthesis of β-unsubstituted meso-decamethylcalix[5]pyrrole from pyrrole and acetone, with moderate yield, is described. The results showed that a bismuth salt was necessary to obtain calix[5]pyrrole, with the best results obtained using Bi(NO 3) 3. Calix[n]pyrroles have attracted attention because of their ability to recognize anions(More)
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