全文获取类型
收费全文 | 290篇 |
免费 | 32篇 |
出版年
2021年 | 3篇 |
2018年 | 4篇 |
2017年 | 4篇 |
2016年 | 5篇 |
2015年 | 8篇 |
2014年 | 8篇 |
2013年 | 8篇 |
2012年 | 15篇 |
2011年 | 19篇 |
2010年 | 7篇 |
2009年 | 9篇 |
2008年 | 18篇 |
2007年 | 16篇 |
2006年 | 15篇 |
2005年 | 11篇 |
2004年 | 8篇 |
2003年 | 13篇 |
2002年 | 8篇 |
2001年 | 14篇 |
2000年 | 12篇 |
1999年 | 14篇 |
1998年 | 9篇 |
1997年 | 6篇 |
1996年 | 5篇 |
1995年 | 5篇 |
1994年 | 6篇 |
1993年 | 5篇 |
1992年 | 2篇 |
1990年 | 4篇 |
1989年 | 13篇 |
1987年 | 4篇 |
1986年 | 1篇 |
1985年 | 4篇 |
1984年 | 2篇 |
1983年 | 4篇 |
1982年 | 5篇 |
1981年 | 4篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 4篇 |
1977年 | 5篇 |
1976年 | 2篇 |
1974年 | 2篇 |
1972年 | 1篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1961年 | 1篇 |
1950年 | 1篇 |
1925年 | 1篇 |
1915年 | 1篇 |
排序方式: 共有322条查询结果,搜索用时 109 毫秒
41.
Costa GG Cabrera OG Tiburcio RA Medrano FJ Carazzolle MF Thomazella DP Schuster SC Carlson JE Guiltinan MJ Bailey BA Mieczkowski P Pereira GA Meinhardt LW 《Fungal biology》2012,116(5):551-562
In this study, we report the sequence of the mitochondrial (mt) genome of the Basidiomycete fungus Moniliophthora roreri, which is the etiologic agent of frosty pod rot of cacao (Theobroma cacao L.). We also compare it to the mtDNA from the closely-related species Moniliophthora perniciosa, which causes witches' broom disease of cacao. The 94 Kb mtDNA genome of M. roreri has a circular topology and codes for the typical 14 mt genes involved in oxidative phosphorylation. It also codes for both rRNA genes, a ribosomal protein subunit, 13 intronic open reading frames (ORFs), and a full complement of 27 tRNA genes. The conserved genes of M. roreri mtDNA are completely syntenic with homologous genes of the 109 Kb mtDNA of M. perniciosa. As in M. perniciosa, M. roreri mtDNA contains a high number of hypothetical ORFs (28), a remarkable feature that make Moniliophthoras the largest reservoir of hypothetical ORFs among sequenced fungal mtDNA. Additionally, the mt genome of M. roreri has three free invertron-like linear mt plasmids, one of which is very similar to that previously described as integrated into the main M. perniciosa mtDNA molecule. Moniliophthora roreri mtDNA also has a region of suspected plasmid origin containing 15 hypothetical ORFs distributed in both strands. One of these ORFs is similar to an ORF in the mtDNA gene encoding DNA polymerase in Pleurotus ostreatus. The comparison to M. perniciosa showed that the 15 Kb difference in mtDNA sizes is mainly attributed to a lower abundance of repetitive regions in M. roreri (5.8 Kb vs 20.7 Kb). The most notable differences between M. roreri and M. perniciosa mtDNA are attributed to repeats and regions of plasmid origin. These elements might have contributed to the rapid evolution of mtDNA. Since M. roreri is the second species of the genus Moniliophthora whose mtDNA genome has been sequenced, the data presented here contribute valuable information for understanding the evolution of fungal mt genomes among closely-related species. 相似文献
42.
43.
H K Koch B H?berle K Meinhardt H Enzan R Lesch 《Virchows Archiv. B, Cell pathology including molecular pathology》1978,26(3):233-247
In rats hepatocellular cytoplasmic changes after daily repeated D-galactosamine (GalN) intoxication--i.e. subacute GalN intoxication--were studied by light and electron microscopy. The number of GalN injections--and thus the days of survival--was between one and 30. The rats were killed six hours after the last GalN injection. Less degenerative changes were found after repeated GalN injections. An increased formation of atypical dense bodies (ADB), a temporary pronounced lipid accumulation and changes of the rough and smooth endoplasmic reticulum were prominent features of subacute GalN intoxication. The implications with respect to a modified GalN action in subacute GalN intoxication are discussed with special reference to biochemical data obtained in the same experimental model (Schuchhardt et al., 1977). 相似文献
44.
45.
Bai X Debaud JC Schründer J Meinhardt F 《The Journal of General and Applied Microbiology》1997,43(5):273-279
Bulk DNA isolated from the ectomycorrhizal basidiomycete Hebeloma circinans was treated with proteinase K and submitted to agarose gel electrophoresis. In addition to high molecular weight genomic DNA, three minor bands were detected. The band with the highest electrophoretic mobility (2.2 kbp) corresponds to double-stranded RNA. The two other bands, termed pHC1 and pHC2, were shown to be dsDNA molecules of 10.3 and 9.1 kbp, respectively. Treatment of the pHC elements with 3'- and 5'-specific exonucleases revealed a linear structure and proved that the 5' ends are protected from digestion; for pHC2, linearity was confirmed by restriction mapping. A 3.2 kbp HindIII fragment of pHC2 was cloned and sequenced; it contains two open reading frames encoding putative viral B type DNA and RNA polymerases. Thus, the fungus harbors a typical linear plasmid, up to now, rarely described for basidiomycetes and hitherto unknown for mycorrhizal species. 相似文献
46.
47.
48.
49.
50.