the cecidomyiid species rabdophaga heterobia (loew) induces gall on willow's male catkins, and causes small rosettes at the extremities of shoots and swollen lateral buds or lateral rosettes on some species of willow. during the years 2006-2007, a study on willow pests in the west azarbaijan province (saatloo poplar research station) was conducted. the following nine willow species were us...

The aim of the present study was to determine content naphthoquinones (juglone and hydrojuglone glycosides) in different tissues walnut plants (Juglans regia L.) through growing season, for French cultivar 'Franquette' Slovenian 'Rubina'. Husk, leaves, bark, catkin pistillates were studied. Naphthoquinones contents catkins (male flowers) (female J. regia, have best our knowledge not been define...

Bacterial blight, caused by Xanthomonas arboricola pv. juglandis, is a significant disease affecting walnut production worldwide. Outbreaks are most severe in spring, and closely tied to host phenology weather conditions. Pathogen infections mainly observed catkins, female flowers, leaves, fruits. In this study, the effect of wetness duration temperature on X. juglandis was determined through t...

Abstract Sex dimorphism and gene expression were studied in developing catkins 159 F2 individuals from the bioenergy crop Salix purpurea, potential mechanisms pathways for regulating sex development explored. Differential expression, eQTL, bisulfite sequencing, network analysis used to characterize dimorphism, detect candidate master regulator genes, identify through which determination region ...

BACKGROUND Evidence is compelling for a positive correlation between climate change, urbanisation and prevalence of allergic sensitisation and diseases. The reason for this association is not clear to date. Some data point to a pro-allergenic effect of anthropogenic factors on susceptible individuals. OBJECTIVES To evaluate the impact of urbanisation and climate change on pollen allergenicity...

The present paper reports on the preparation of novel bamboo leaf shaped CuO nanorod dispersed hollow carbon fibers (denoted as CuO NR@PCFs). Specially, the new-type hollow carbon fibers (containing abundant micro/meso/macropores and a large specific surface area) were prepared only by simple and fast pyrolysis of the natural product catkins without using any template or surfactant. Meanwhile, ...

Using methylated DNA immunoprecipitation followed by high-throughput sequencing (MeDIP-seq), we analyzed DNA methylation patterns in the P. trichocarpa genome in relation to four biological processes: bud dormancy and release, mature organ maintenance, in vitro organogenesis, and methylation suppression. Here, we report results from Illumina sequencing of nine sampled tissues, each representing...

The genus Pyrrhura includes small to medium-sized parakeets, which inhabit both low and dry alongside tall rainforests, mainly in South America. Pyrrhura molinae is still common, year round, in the markedly seasonal forests of western Brazil. This parakeet, as well as most Neotropical parrots, continues to be poorly understood. Hence, in the present study I examined their foraging ecology both ...