Monica Quintero

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This article describes the complete microsporogenesis and pollen formation in cassava (Manihot esculenta Crantz) at the various developmental stages (pollen mother cell, meiosis, tetrads, early free spore, mid uninucleate, late uninucleate, binucleate and mature pollen grain). Light microscopy, transmission electron microscopy and confocal laser scanning(More)
BACKGROUND AND AIMS Cassava (Manihot esculenta), a major food staple in the tropics and subtropics, thrives even in environments undergoing threatening climate change. To satisfy the increasing demand for crop improvement and overcome the limitations of conventional breeding, the introduction of inbreeding techniques such as the production of doubled(More)
The development of new methods that meet the demand of high-throughput, high-fidelity screening of hit compounds is important to researching modalities of important diseases such as neurological disorders, HIV, and cancer. A surface plasmon resonance- (SPR-) based method capable of continuously screening enzyme inhibitors at a single chip with(More)
The coffee berry borer Hypothenemus hampei is a pest that causes great economic damage to coffee grains worldwide. Because the proteins consumed are digested by aspartic proteases in the insect's midgut, the inhibition of these proteases by transferring a gene encoding an aspartic protease inhibitor from Lupinus bogotensis Benth. to coffee plants could(More)
The automatic handwritten signature verification is an open problem for the scientific community. The most of the published studies examine a generic document trying to locate where the signature has been written, to segment the signature removing complex backgrounds containing lines and letter and to determining whether the signature was made by the owner.(More)
<lb>Fine soil generated from the soil washing process can be the second problem as contaminants are<lb>concentrated in the fine soil, and also took the difficult forms to treat because soluble and<lb>exchangeable fractions are already removed by soil washing process; therefore, the fine soil is<lb>indicated to hazardous waste, and discarded in hazardous(More)
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