Falguni Guharay

Learn More
The membrane of tissue-cultured chick pectoral muscle contains an ionic channel which is activated by membrane stretch. Nicotinic channels and Ca2+-activated K+ channels are not affected by stretch. In 150 mM-external K+ and 150 mM-internal Na+ the channel has a conductance of 70 pS, linear current-voltage relationship between -50 and -140 mV and a reversal(More)
During most of its cultivation in Central America, coffee (Coffea arabica L.) suffered few serious pest problems. However, over the past three decades, three factors contributed to significantly increase pest levels and losses: the recent introduction of new pests; more favorable conditions for existing pests, diseases, and weeds due to lower shade levels;(More)
The membrane of tissue-cultured chick pectoral muscle contains an ionic channel which is activated by membrane tension. With 150 mM-external K+ and 150 mM-internal Na+, the channel has a conductance of 70 pS and a reversal potential of +30 mV. With 150 mM-external Na+ and 150 mM-internal K+ (normal gradient) the channel has a conductance of 35 pS and a(More)
Three unsprayed coffee farms (farm 1, 2 and 3) were studied for the natural occurrence of the insect pathogenic fungus Beauveria bassiana in Hypothenemus hampei populations throughout the rainy season of 2004 (July-November) and 2005 (July-December). B. bassiana infections were found during most sampling dates in both years, on all three farms. The B.(More)
The addition of 2% (vol./vol.) dimethyl sulfoxide to replated confluent cultures of NIE-115 neuroblastoma cells abolishes cell-proliferation and induces extensive neurite formation. The morphologically differentiated cells exhibit higher resting membrane potential and higher input resistance. In addition the differentiated cells also express an increased(More)
Differentiated murine neuroblastoma cells (NIE-115) have receptors for 5-hydroxytryptamine (5-HT), the activation of which either depolarizes or hyperpolarizes these cells with associated increases in input conductance. Ionophoresis of 5-HT on to NIE-115 cells elicits brief depolarization, but the 5-HT receptors rapidly desensitize during repeated(More)
  • 1