排序方式: 共有35条查询结果,搜索用时 0 毫秒
1.
GN Bistis 《Fungal genetics and biology : FG & B》1998,23(3):213-222
Copyright 1998 Academic Press. 相似文献
2.
A. P. Smolov G. A. Semenova N. Yu. Minakova A. M. Butanaev G. N. Shirshikova 《Russian Journal of Plant Physiology》2012,59(6):828-832
The effects of exogenous ammonium on total protein and chlorophyll contents and the number of ribosomes in Chlamydomonas reinhardtii (Sager) green alga cells were studied. The absence of ammonium from nutrient medium resulted in a twofold drop in the number of ribosomes in the cytoplasm. The chlorophyll content of the cells grown on ammonium-free nitrate-containing medium insignificantly increased. The increase in the ribosome number in the presence of exogenous ammonium was not accompanied by the elevation of total cellular protein and did not depend on the levels of mRNA of rps6, a small ribosome subunit protein, and the 18S rRNA. Possible reasons for the effect of exogenous ammonium during ribosome biogenesis are discussed. 相似文献
3.
A. P. Smolov A. M. Butanaev G. A. Semenova G. N. Shirshikova 《Cell and Tissue Biology》2013,7(6):578-585
This paper presents a comparative analysis of obtained experimental data on the effect of exogenous ammonium on the protein and chlorophyll content, on the number of ribosomal structures, and on expression of the ribosomal genes encoding protein of small subunit rpS6 and 18S rRNA in cells of the soybean callus culture Glycine max and of unicellular green alga Chlamydomonas reinhardtii. It has been shown that, under the effect of exogenous ammonium. an increase of the number ribosomal structures in cells of the soybean callus, as well as in the alga cells, is not caused by an increase in the activity of the corresponding ribosomal genes. Possible mechanisms of action of ammonium on the content both of ribosomes in cells and of their protein and chlorophyll are discussed. 相似文献
4.
5.
Orthologous gene-expression profiling in multi-species models: search for candidate genes 总被引:2,自引:0,他引:2 下载免费PDF全文
Microarray-driven gene-expression profiles are generally produced and analyzed for a single specific experimental model. We have assessed an analytical approach that simultaneously evaluates multi-species experimental models within a particular biological condition using orthologous genes as linkers for the various Affymetrix microarray platforms on multi-species models of ventilator-associated lung injury. The results suggest that this approach may be a useful tool in the evaluation of biological processes of interest and selection of process-related candidate genes. 相似文献
6.
S. K. Zharmukhamedov G. N. Shirshikova Z. V. Maevskaya T. M. Antropova V. V. Klimov 《Russian Journal of Plant Physiology》2007,54(3):302-308
Currently available data about bicarbonate (BC) action on the Mn-containing water-oxidizing complex (WOC) of the photosystem
II (PSII) were obtained almost solely in vitro, e.g. on subchloroplast membrane fragments enriched with PSII. To investigate
the in vivo BC effect on the PSII donor side, we used the method of dark thermoinactivation of intact Chlamydomonas reinhardtii cells. Photosynthetic activity of PSII was measured as photoinduced changes in the PSII chlorophyll fluorescence yield and
as the rate of photosynthetic oxygen evolution. To exclude a “direct” effect of the absence of BC on the PSII activity, before
measurements of the photosynthetic activity, the concentration of BC in all samples was equalized by addition of NaHCO3 to each of them (except for those that contained 5 mM of NaHCO3 during thermoinactivation) to reach the final concentration of 5 mM. This allowed registering only so-called “irreversible”
(i.e., not reversible by subsequent addition of BC) effect of the absence of BC during thermoinactivation. It was shown that,
if 5 mM NaHCO3 was added to the medium before thermoinactivation, the rate of inactivation of the PSII donor side was lower than in BC-depleted
medium 1.5-to 2-fold. The obtained results are interpreted as an indication that BC protects the donor side of PSII against
thermoinactivation in vivo, in intact C. reinhardtii cells. This proves the correctness of the earlier proposition that BC is an integral constituent of the Mn-containing water-oxidizing
complex of PSII.
Published in Russian in Fiziologiya Rastenii, 2007, Vol. 54, No. 3, pp. 342–349.
The article was translated by the authors. 相似文献
7.
8.
Smolov A. P. Maslov A. I. Shirshikova G. N. Naidov I. A. 《Russian Journal of Plant Physiology》2019,66(6):976-983
Russian Journal of Plant Physiology - The earlier-detected effect of the mineral nitrogen form in the nutrient medium (ammonium or nitrate) on the quantity of ribosomes in the cells of... 相似文献
9.
Recreational big game hunters make a significant contribution to conservation through kills of deer, pigs, chamois and tahr. New opportunities for managing recreational hunting through the proposed Game Animal Council underscore the need to understand the implications of potential changes in recreational hunting participation and harvests. Based on a survey of hunters' recall over a year, hunters averaged 15.63 (SEM = 0.58) big game hunts per year, spending 30.53 (SEM = 0.85) days hunting and killing 8.92 (SEM = 0.69) big game animals. Hunters commonly targeted several species on a single hunt, with highly skewed distributions for hunter effort and kills. Mean monthly expenditure on big game hunting items was $296.78 (SEM = $8.95). Results demonstrate that big game hunting is a significant activity in New Zealand, but this varies considerably among hunters with a small number responsible for the vast majority of kills. These are important considerations for future big game hunting management. 相似文献