The cottonwood leafcurl mite, Aculops lobuliferus Keifer, 1961, is renamed as Tetra lobulifera (Keifer). This eriophyid mite is capable of inflicting substantial damage on plantationand native-grown cottonwoods (Populus spp.). We report new State and County collection records from the eastern and northwestern U.S.A. as well as new host records, including Populus grandidentata Michx. (big-tooth ...

arms could be raised, the wasting of the deltoids and lower parts of the pectorial muscles, and the bony prominences around the shoulder joints. The prominences above the clavicles represent the superior internal angles of the scapulae. The back yiew shews the characteristic winging of paralysis of the trapezius. The modern view of these myopathies appears to be that,?with the exception of the ...

miR1444s are functionally significant miRNAs targeting polyphenol oxidase (PPO) genes for cleavage. MIR1444 genes were reported only in Populus trichocarpa. Through the computational analysis of 215 RNA-seq data, four whole genome sequences of Salicaceae species and deep sequencing of six P. trichocarpa small RNA libraries, we investigated the origin and evolution history of MIR1444s. A total o...

The plant hormone auxin is a key regulator of plant development, and its uneven distribution maintained by polar intercellular auxin transport in plant tissues can trigger a wide range of developmental processes. Although the roles of PIN-FORMED (PIN) proteins in intercellular auxin flow have been extensively characterized in Arabidopsis, their roles in woody plants remain unclear. Here, a comp...

Resource managers are challenged with waste disposal and leachate produced from its degradation. Poplar (Populus spp.) trees offer an opportunity for ecological leachate disposal as an irrigation source for managed tree systems. Our objective was to irrigate Populus trees with municipal solid waste landfill leachate or fertilized well water (control) (N, P, K) during the 2005 and 2006 growing s...

Populus (Salicaceae) is one of the most economically and ecologically important genera of forest trees. The complex reticulate evolution and lack of highly variable orthologous single-copy DNA markers have posed difficulties in resolving the phylogeny of this genus. Based on a large data set of nuclear and plastid DNA sequences, we reconstructed robust phylogeny of Populus using parsimony, maxi...