نتایج جستجو برای: secondary bodies
تعداد نتایج: 384529 فیلتر نتایج به سال:
Caffeine, a purine alkaloid drug, has been recognized as a contaminant of water bodies in various climatic regions, however, these environmental caffeine concentrations are the first to be reported in the tropical Caribbean. The major objective of this study was to develop an improved method to extract caffeine from surface and wastewaters in the warm Caribbean environment and measure caffeine ...
This paper describes the structure of the flagella, basal bodies, and some of the associated fibre systems in three genera of complex flagellates, Trichonympha, Pseudotrichonympha, and Holomastigotoides. Three groups of longitudinal fibres occur in a flagellum: two central and nine outer fibres such as have been repeatedly described in other material, and an additional set of nine smaller secon...
To investigate the potential for mortality or sublethal effects in the tree weta (Hemideina crassidens) as the result of exposure to baits used for rodent control, and the potential secondary hazard to non-target species, captive weta were offered Ditrac® wax block bait containing the anticoagulant diphacinone. Bait consumption was recorded daily for the first week and then weekly. Weta were sa...
e dynamics of morphological changes during in vitro aging of bovine virgin mammary gland neutrophils
e present study was an in vitro analysis of the dynamics of bovine mammary gland neutrophil apoptosis based on the detection of morphological changes. e neutrophils were isolated from mammary glands of five virgin heifers. e mammary glands were lavaged, the suspensions were then bacteriologically examined, and total and differential cell counts were made. e cells were cultivated in vitro fo...
During morphogenesis in the slime mold Polysphondylium pallidum cell masses are periodically pinched off from the base of the developing sorogen. These masses round up and differentiate into secondary sorogens, which become radially ordered arrays of secondary fruiting bodies called whorls. Here we describe the morphogenesis of P. pallidum and characterize the spacing of whorls along the centra...
during visit beech forests of mazandaran province in may and june of 2010-2011, some infected twigs of fagus sylvatica with signs of fungal infection were collected. laboratory analysis revealed acervular fruiting bodies on infected twigs. acervulus up to 500 μm in diameter and forming a black spot on main and secondary twigs. conidia erumpent, form black masses over the acervulus. conidia are ...
During the endopolyploidization of the suspensor cells of Phaseolus coccineus and P. vulgaris, polytene chromosomes and an important nucleolar apparatus develop within the nuclei. The nucleolus-associated regions of the four nucleolus-organizing chromosomes and the regions of the secondary constrictions (intranucleolar chromatin threads) show a temperature-dependent, reversible variability in t...
Volvariella volvacea is an important crop in Southeast Asia, but erratic fruiting presents a serious challenge for its production and breeding. Efforts to explain inconsistent fruiting have been complicated by the multinucleate nature, typical lack of clamp connections, and an incompletely identified sexual reproductive system. In this study, we addressed the life cycle of V. volvacea using who...
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