Partial and asymmetrical reproductive isolation between two sympatric tropical shrub species: and (Euphorbiaceae).

Reproductive isolation is conferred by several barriers that occur at different stages of reproduction. Comprehensive reviews on the topic have identified that barriers occurring prior to zygote formation are often stronger than those that occur afterward. However, the overrepresentation of temperate perennial herbs in the current literature precludes any generalization of this pattern to plants that present other life forms and patterns of distribution.

Are All Stent Bearers Equal? Ureteral Stent Symptoms in Kidney Transplant Patients: A Case-Control Prospective Study.

The aim of this study is to conduct a prospective, controlled single-center study to determine the prevalence and types of ureteral stent symptoms in kidney transplant (KTx) recipients and compare them with nontransplant subjects. From December 2012 to June 2019, a total of 102 patients having undergone a KTx and Double-J stent (DJS) placement and 88 patients having undergone endourological lithotripsy and DJS placement were enrolled. The Ureteral Stent Symptom Questionnaire (USSQ) was administered to patients with a median of 25 (KTx) and 31 (urolithiasis) days after stent placement.

Application of in Casa Pollination and Embryo Rescue Techniques for Breeding of Agave Species.

Species of the genus Agave are distributed originally in the tropical and subtropical areas of the American continent with about 200 taxa and 136 species, and its center of origin is probably limited to México. These kind of plants usually grow and live in extreme environmental conditions such as heat and drought where their CAM pathway for fixing CO allow them to survive in conditions where other plants cannot survive. Although this kind of plants resist harsh environmental conditions, climate change is imposing stronger kinds of stress that diminish their productive potential and in some cases are cause of death.

Micropropagation of Agave Species.

The genus Agave originates from the American continent and grows in arid and semiarid places, being México the center of origin. Many species of the genus are a source of diverse products for human needs, such as food, medicines, fibers, and beverages, and a good source of biomass for the production of biofuels, among many others. These plants are gaining importance as climate change becomes more evident as heat is reaching temperatures above 40 °C worldwide and rains are scarce.