Diverse clades of mycorrhizal and endophytic fungi are potentially involved in competitive or facilitative interactions within host-plant roots. We investigated the potential consequences of these ecological interactions on the assembly process of root-associated fungi by examining the co-occurrence of pairs of fungi in host-plant individuals. Based on massively-parallel pyrosequencing, we anal...

We have reported previously that in the presence of an osmotic gradient, facilitative glucose transporters (GLUTs) act as a transmembrane pathway for water flow. Here, we find evidence that they also allow water passage in the absence of an osmotic gradient. We applied the linear diffusion technique to measure the diffusional permeability (Pd) of tritiated water (3H-H2O) through plasma membrane...

indicates hyperdiverse fungal communities in temperate Quercus macrocarpa phyllosphere. New Phytologist 184: 438–448. Keller SR, Sowell DR, Neiman M, Wolfe LM, Taylor DR. 2009. Adaptation and colonization history affect the evolution of clines in two introduced species. New Phytologist 183: 678–690. Liao C, Peng R, Luo Y, Zhou X, Wu X, Fang C, Chen J, Li B. 2008. Altered ecosystem carbon and ni...

GLUT9 is a novel, facilitative glucose transporter isoform that exists as two alternative splice variants encoding two proteins that differ in their NH(2)-terminal sequence (GLUT9a and GLUT9b). Both forms of GLUT9 protein and mRNA are expressed in the epithelia of various tissues; however, the two splice variants are expressed differentially within polarized cells, with GLUT9a localized predomi...

Introduction Maintenance of normal glucose homeostasis results from the precise orchestration ofthree processes: glucose absorption via the gut, production by the liver, and utilization by nearly all tissues in the body. In the fasting state, most ofglucose utilization is by brain and is independent of insulin. Glucose levels are maintained during a fast by the tightly regulated release of gluc...

Glucose metabolism is vital to most mammalian cells, and the passage of glucose across cell membranes is facilitated by a family of integral membrane transporter proteins, the GLUTs. There are currently 14 members of the SLC2 family of GLUTs, several of which have been the focus of this series of reviews. The subject of the present review is GLUT3, which, as implied by its name, was the third g...