608 PB 252 DEFOLIATION OF TREE FRUIT NURSERY STOCK

Septoria Canker on Nursery Stock of Populus Deltoides

Septoria musiva Peck is capable of establishing itself on unwounded first-ye ar stems of eastern cottonwood. Natural infections have been observed since 1969 in three forest nurse ries in Mississippi, and inoculations have confirmed that both conidia and ascospores are capable of causing stem infections . This paper offers evide n ce that the fungus Septoria musiva Peck is capable of causing ca...

Applying the target plant concept to nursery stock quality

The basic tenet of the target plant concept is that the quality of nursery stock is determined by outplanting performance (survival and growth), rather than characteristics or standards measured at the nursery. This means that there is no all-purpose plant, but that each outplanting project will require different species and stock types. In this paper, we discuss the six basic questions that he...

Dmd049239 608..614

The purpose of this study was to quantitatively determine the contribution of PepT1 [peptide transporter 1 (SLC15A1)] to the intestinal permeability of valacyclovir, an ester prodrug of the antiviral drug acyclovir. In situ single-pass intestinal perfusions were employed (pH 6.5 3 90 minutes) to assess the effective permeability (Peff) of 100 mM [ H]valacyclovir in wild-type and PepT1 knockout ...

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The enzymatic transfer of activated mannose yields mannosides in glycoconjugates and oligoand polysaccharides. Yet, despite its biological necessity, the mechanism by which glycosyltransferases recognize mannose and catalyze its transfer to acceptor molecules is poorly understood. Here, we report broad high-throughput screening and kinetic analyses of both natural and synthetic substrates of Rh...

Genomics of Tropical Fruit Tree Crops