全文获取类型
收费全文 | 52篇 |
免费 | 3篇 |
专业分类
林业 | 12篇 |
农学 | 4篇 |
6篇 | |
综合类 | 6篇 |
农作物 | 1篇 |
水产渔业 | 7篇 |
畜牧兽医 | 11篇 |
园艺 | 3篇 |
植物保护 | 5篇 |
出版年
2023年 | 2篇 |
2022年 | 1篇 |
2020年 | 2篇 |
2018年 | 2篇 |
2017年 | 1篇 |
2014年 | 2篇 |
2013年 | 1篇 |
2012年 | 3篇 |
2011年 | 4篇 |
2010年 | 2篇 |
2009年 | 2篇 |
2008年 | 1篇 |
2006年 | 4篇 |
2005年 | 4篇 |
2004年 | 4篇 |
2003年 | 1篇 |
2002年 | 4篇 |
2001年 | 4篇 |
1999年 | 4篇 |
1998年 | 1篇 |
1995年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1979年 | 1篇 |
排序方式: 共有55条查询结果,搜索用时 15 毫秒
1.
The effects of seasoning treatment for fresh sugi wood meal on the mycelial growth of shiitake was investi-gated. The mycelial growth of shiitake in sugi wood meal increased to the same level as that in extract-free sugi wood meal on the 12th day and to approximately 70% of that in konara wood meal on the 28th day of the seasoning treatment. A drastic decrease in extracts of fresh sugi wood meal occurred during the early stage of treatment, and the neutral fraction of methanol extracts decreased to less than 2%. The drainage of sugi wood meal media significantly increased during the later stage of treatment. No changes in the chemical components of sugi wood meal were detected during the seasoning treatment. The mycelial growth of shiitake in the fully seasoned sugi wood meal, which was prepared for commercial mushroom cultivation, was at almost the same level as that in the extract-free sugi wood meal. All of the seasoned sugi wood meals contained a neutral fraction of less than 1%. These results suggested that seasoning treatment can promote mycelial growth of shiitake in sugi wood meal by eliminating inhibitors and improving the physical properties of sugi wood.Part of this paper was presented at the 49th Annual Meeting of the Japan Wood Research Society, Tokyo, April 1999 相似文献
2.
T. Matsumoto Y. Nagashima K. Takayama K. Shimakura K. Shiomi 《Fish physiology and biochemistry》2005,31(1):95-100
In vitro accumulation of tetrodotoxin (TTX) and paralytic shellfish toxin (PST) in tiger puffer fish Takifugu rubripes was investigated using liver tissue slices. When T. rubripes liver slices were incubated with Leibovitz’s L-15 medium containing 0.13 mM TTX at 20 °C in air with saturated humidity, they accumulated 21.5 ± 7.3 μg TTX g?1 liver after the incubation for 12 h and increased to 55.3 ± 8.2 μg TTX g?1 liver at 48 h. In the incubation of T. rubripes liver slices with 0.13 mM PST-containing medium, PST was detected 6.3 ± 0.9 μg g?1 liver at 12 h and reached a plateau thereafter. These results reveal the difference between TTX and PST in accumulation in T. rubripes liver tissue slices. To examine the variation in PST accumulation among fish species, the liver tissue slices from tiger puffer fish T. rubripes, parrot-bass Oplegnathus fasciatus and green ling Hexagrammos otakii were incubated at a concentration of 0.027 mM PST. The toxin contents of 3.0 μg g?1 liver were observed at 8 h regardless of fish species but were not increased subsequently, showing no variety among these three species as to accumulation patterns of PST. It is noted that the tiger puffer fish T. rubripes liver specifically accumulate TTX in preference to PST. 相似文献
3.
A protein that binds to a cis-acting element of wheat histone genes has a leucine zipper motif 总被引:34,自引:0,他引:34
T Tabata H Takase S Takayama K Mikami A Nakatsuka T Kawata T Nakayama M Iwabuchi 《Science (New York, N.Y.)》1989,245(4921):965-967
4.
Takayama H Shimada N Mikami O Murata H 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2005,67(5):531-533
We evaluated the immunotoxicity of deoxynivalenol (DON), a Fusarium mycotoxin, on bovine and porcine neutrophils in vitro by using two function parameters, luminol-dependent chemiluminescence and random migration under agarose. A 2-hr DON treatment suppressed the chemiluminescence of bovine and porcine cells by 42% and 35% (on average) at 10(-5)M, and by 19% and 26% at 10(-6)M. Slight suppression was observed at concentrations lower than 10(-6)M. However, after an 18-hr DON treatment, random migration of neutrophils of both species remained unaffected, even at the highest concentration (10(-5)M). Although further extensive studies are needed, to our knowledge this is the first study to have revealed in vitro that DON can affect neutrophil function. 相似文献
5.
We determined the chromosome number of 52 accessions of Paspalum from the germplasm collection of the Centro de Pesquisa de
Pecuária do Sudeste (CPPSE/EMBRAPA) originating from different regions in Brazil. All accessions belonged to the Plicatula
group, 13 of them being P. plicatulum, three P. guenoarum, two P. yaguaronense, two P. compressifolium, one P. atratum, and
31 still unidentified Paspalum sp. Except for a P. yaguaronense accession that presented 2n=60, all the remaining ones presented
2n=40 chromosomes. This is the first report of the chromosome number of P. atratum. Considering that the basic number for
most species in the genus Paspalum is ×=10, the accessions analyzed are tetraploids (2n=4×=40) and hexaploids (2n=6×=60).
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
6.
Fisheries Science - The present study established an age determination technique and analyzed growth patterns in three sculpins, Myoxocephalus jaok, Enophrys diceraus, and Gymnocanthus... 相似文献
7.
Takayama I Kubo M Takenaka A Fujita K Sugiyama T Arai T Yoneda M Sato H Yanai T Kai C 《Comparative immunology, microbiology and infectious diseases》2009,32(6):539-549
Ten wild masked palm civets infected with canine distemper virus (CDV), captured in Japan from 2005 to 2007, were histopathologically and phylogenetically analyzed. Phylogenetic analysis based on the amino acid sequences of the H protein of two CDV isolates from masked palm civets revealed that the two isolates were classified into the clade of recent isolates in Japan. Histopathologically marked lesions of virus encephalitis were present in the brain, whereas gastrointestinal lesions were absent or at a mild degree. The distribution of the lesions resembles that of recent CDV cases in dogs. Therefore, recent CDV infections in masked palm civets could be caused by recently prevalent CDV in dogs. The possibility of the masked palm civet as a spreader of CDV among wildlife is also discussed. 相似文献
8.
9.
Kubo K Entani T Takara A Wang N Fields AM Hua Z Toyoda M Kawashima S Ando T Isogai A Kao TH Takayama S 《Science (New York, N.Y.)》2010,330(6005):796-799
Self-incompatibility in flowering plants prevents inbreeding and promotes outcrossing to generate genetic diversity. In Solanaceae, a multiallelic gene, S-locus F-box (SLF), was previously shown to encode the pollen determinant in self-incompatibility. It was postulated that an SLF allelic product specifically detoxifies its non-self S-ribonucleases (S-RNases), allelic products of the pistil determinant, inside pollen tubes via the ubiquitin-26S-proteasome system, thereby allowing compatible pollinations. However, it remained puzzling how SLF, with much lower allelic sequence diversity than S-RNase, might have the capacity to recognize a large repertoire of non-self S-RNases. We used in vivo functional assays and protein interaction assays to show that in Petunia, at least three types of divergent SLF proteins function as the pollen determinant, each recognizing a subset of non-self S-RNases. Our findings reveal a collaborative non-self recognition system in plants. 相似文献
10.
Changqing?Hu Sadatoshi?MeguroEmail author Shinsaku?Kawachi 《Journal of Wood Science》2004,50(4):365-370
The effects of physical properties of wood, including specific gravity, porosity, and water retention, on the water activity (a
w) of wood meal media for the cultivation of edible mushrooms were examined. Five species of wood, selected from an initial set of 11 species, and six species of fungi popularly cultivated in Japan were used. The water activity of each fungal species was measured using liquid media in which a
w had been reduced by adding NaCl, KCl, sucrose, or ethylene glycol. From the water activities of the media and fungi, we estimated the most suitable wood species for the cultivation of each edible mushroom in wood meal media. Suitable wood species for the wood meal cultivation of shiitake, nameko, and maitake, which had relatively high a
w, was limited to hardwoods like arakashi, konara, and irohakaede because of their higher water activities. Edible mushrooms with lower levels of a
w, like hiratake, enokitake, and bunashimeji, could be cultivated in all kinds of wood species used in this experiment, but especially in sugi.Parts of this report were presented at the 49th, 50th, 51st, and 52nd Annual Meetings of the Japan Wood Research Society, in Kyoto (April 2000), Tokyo (April 2001), Gifu (April 2002), and Fukuoka (March 2003), Japan 相似文献