Tag: Drosophila

Zinc as an ally for the treatment of Covid 19

What follows is a free translation of a piece written by Noemí Rodríguez González for Conexión Cinvestav. Noemí interviewed me over a Covid 19 project prepared at the invitation of the State of Hidalgo by Nils Schuth, Liliana Quintanar, Erika Garay & myself, which was one amongst five accepted by the Paul Scherrer Institute‘s synchrotron. The poster below was kindly prepared by José Eduardo García Ramírez. Thanks go to Omar Fayad (Hidalgo’s State Governor), Lamán Carranza & Juan García who support the project to build a synchrotron in Mexico.


Drosophila prefers red to white wine


From a casual conversation with Dr. Carmen Vivar, we were surprised to learn of her observations that wild Drosophila flies were excellent at spotting her glass of red wine; whereas when she would serve white wine, the flies would rarely appear. We were previously under the impression that flies would be attracted to the alcohol vapor, but clearly such a pronouncement was not able to distinguish between the two types of wine. A quick search in the literature revealed studies on the adaptions carried by populations of flies grown near wineries (see a historical view [1] by the pioneer of these investigations, Stephen W. McKechnie), whose observations were repeated by Spanish colleagues [2], while more recently attention is on Drosophila suzukii [3] , a pest of the grapes themselves. But, to our surprise, given the relationship of most Drosophilists we know of, with wine, we could identify no data on whether our (also known as) vinegar flies, had preference between vin rouge ou vin blanc. (more…)

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