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61.
FD, a bZIP protein mediating signals from the floral pathway integrator FT at the shoot apex 总被引:5,自引:0,他引:5
Abe M Kobayashi Y Yamamoto S Daimon Y Yamaguchi A Ikeda Y Ichinoki H Notaguchi M Goto K Araki T 《Science (New York, N.Y.)》2005,309(5737):1052-1056
62.
Genotypic differences in grain yield, and nitrogen absorption and utilization in recombinant inbred lines of rice under hydroponic culture 总被引:1,自引:0,他引:1
63.
Mai Tsuda Ken-ichi Konagaya Ayako Okuzaki Yukio Kaneko Yutaka Tabei 《Breeding Science》2011,61(4):358-365
Imported genetically modified (GM) canola (Brassica napus) is approved by Japanese law. Some GM canola varieties have been found around importation sites, and there is public concern that these may have any harmful effects on related species such as reduction of wild relatives. Because B. juncea is distributed throughout Japan and is known to be high crossability with B. napus, it is assumed to be a recipient of B. napus. However, there are few reports for introgression of cross-combination in B. juncea × B. napus. To assess crossability, we artificially pollinated B. juncea with B. napus. After harvesting a large number of progeny seeds, we observed false hybrids and metaxenia of seed coats. Seed coat color was classified into four categories and false hybrids were confirmed by morphological characteristics and random amplified polymorphic DNA (RAPD) markers. Furthermore, the occurrence of false hybrids was affected by varietal differences in B. napus, whereas that of metaxenia was related to hybridity. Therefore, we suggest that metaxenia can be used as a marker for hybrid identification in B. juncea L. cv. Kikarashina × B. napus. Our results suggest that hybrid productivity in B. juncea × B. napus should not be evaluated by only seed productivity, crossability ought to be assessed the detection of true hybrids. 相似文献
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65.
Like other plant-pathogenic bacteria, Xanthomonas oryzae pv. oryzae, the causal agent of bacterial leaf blight of rice, has hrp genes that are indispensable for its virulence. The hrp genes are involved in the construction of the type III secretion (T3S) apparatus, through which dozens of virulence-related proteins, called effectors, are directly secreted into plant cells to suppress and disturb plant immune systems and/or induce plant susceptibility genes. The expression of hrp genes is strictly regulated and induced only in plants and in certain nutrient-poor media. Two proteins, HrpG and HrpX, are known as key regulators for hrp gene expression. Great efforts by many researchers have revealed unexpectedly that, besides HrpG and HrpX, many regulators are involved in this regulation, some of which also regulate the expression of virulence-related genes other than hrp. Moreover, it has been found that HrpG and HrpX regulate not only hrp genes and effector genes but also genes unrelated to the T3S system. These findings suggest that the expression of the hrp gene is orchestrally regulated with other virulence-related genes by a complicated, sophisticated regulatory network in X. oryzae pv. oryzae. 相似文献
66.
Kanako Ishihara Toshio Takahashi Ayako Morioka Akemi Kojima Mayumi Kijima Tetsuo Asai Yutaka Tamura 《Acta veterinaria Scandinavica》2009,51(1):35
A total of 518 fecal samples collected from 183 apparently healthy cattle, 180 pigs and 155 broilers throughout Japan in 1999 were examined to determine the prevalence and antimicrobial susceptibility of Salmonella. The isolation rates were 36.1% in broilers, 2.8% in pigs and 0.5% in cattle. S. enterica Infantis was the most frequent isolate, found in 22.6% of broiler fecal samples. Higher resistance rates were observed against oxytetracycline (82.0%), dihydrostreptomycin (77.9%), kanamycin (41.0%) and trimethoprim (35.2%). Resistance rates to ampicillin, ceftiofur, bicozamycin, chloramphenicol and nalidixic acid were <10%. CTX-M-2 β-lactamase producing S. enterica Senftenberg was found in the isolates obtained from one broiler fecal sample. This is the first report of cephalosporin-resistant Salmonella directly isolated from food animal in Japan. 相似文献
67.
68.
Mohamed ELBADAWY Kazuaki SASAKI Yuji MIYAZAKI Mohamed ABOUBAKR Waleed Fathy KHALIL Minoru SHIMODA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(10):1331-1334
The pharmacokinetics of acetaminophen was investigated following oral dosing to Shiba
goats in order to evaluate the properties of gastric emptying. Acetaminophen was
intravenously and orally administered at 30 mg/kg body weight to goats using a crossover
design with a 3-week washout period. The stability of acetaminophen in rumen juice was
also assessed. Acetaminophen concentrations were measured by HPLC. Since acetaminophen was
stable in rumen juice for 24 hr, the extremely low bioavailability (16%) was attributed to
its hepatic extensive first-pass effect. The mean absorption time and absorption half-life
were unexpectedly short (4.93 and 3.35 hr, respectively), indicating its marked absorption
from the forestomach, which may have been due to its smaller molecular weight. Therefore,
acetaminophen was considered to be unsuitable for evaluating gastric emptying in Shiba
goats. 相似文献
69.
70.
Effects of melophlins on colony formation of Chinese hamster V79 cells and IL-8 production in PMA-stimulated HL-60 cells 下载免费PDF全文
We have recently isolated four new melophlins P (1), Q (2), R (3), and S (4) together with seven known melophlins A (5), D (6), E (7), G (8), H (9), I (10), and O (11) from two marine sponges of the genus Melophlus collected in Palau. In this study, the influence of these compounds on the colony formation of Chinese hamster V79 cells and the production of IL-8 in PMA-stimulated HL-60 cells were examined. These 11 compounds did not show any effect on IL-8 production. The EC50 values of compounds 2, 3, 4, 5, 7, 9, 10, and 11 against V79 cells were 44.0, 13.3, 16.7, 27.2, 19.8, 8.5, 23.1, and 9.6 μM, respectively. The linear-chain-type compounds (1, 6, and 8) were not active against V79 cells at 50 μM. Although the growth inhibitory activity of these melophlins was not remarkable, some structure-activity relationships of these compounds against V79 and murine leukemia L1210 cells were observed. 相似文献