全文获取类型
收费全文 | 398篇 |
免费 | 29篇 |
国内免费 | 15篇 |
出版年
2023年 | 10篇 |
2022年 | 9篇 |
2021年 | 17篇 |
2020年 | 29篇 |
2019年 | 13篇 |
2018年 | 16篇 |
2017年 | 17篇 |
2016年 | 8篇 |
2015年 | 15篇 |
2014年 | 8篇 |
2013年 | 33篇 |
2012年 | 19篇 |
2011年 | 14篇 |
2010年 | 6篇 |
2009年 | 18篇 |
2008年 | 17篇 |
2007年 | 14篇 |
2006年 | 11篇 |
2005年 | 11篇 |
2004年 | 9篇 |
2003年 | 12篇 |
2002年 | 10篇 |
2001年 | 8篇 |
2000年 | 12篇 |
1999年 | 7篇 |
1998年 | 5篇 |
1997年 | 8篇 |
1996年 | 4篇 |
1994年 | 4篇 |
1993年 | 4篇 |
1992年 | 2篇 |
1991年 | 6篇 |
1990年 | 4篇 |
1989年 | 2篇 |
1988年 | 1篇 |
1987年 | 3篇 |
1986年 | 1篇 |
1985年 | 7篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 5篇 |
1981年 | 6篇 |
1980年 | 6篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 5篇 |
1976年 | 2篇 |
1975年 | 4篇 |
1974年 | 7篇 |
1973年 | 4篇 |
排序方式: 共有442条查询结果,搜索用时 15 毫秒
431.
432.
433.
434.
The uptake of acylated anthocyanin into isolated vacuoles from a cell suspension culture of Daucus carota 总被引:2,自引:0,他引:2
Anthocyanin-containing vacuoles were isolated from protoplasts of a cell suspension culture of Daucus carota. The vacuoles were stable for at least 2 h as demonstrated by the fact that they showed no efflux of anthocyanin. The uptake of radioactively labelled anthocyanin was time-dependent with a pH optimum at 7.5, and could be inhibited by the protonophore carbonylcyanide m-chlorophenylhydrazone. Furthermore, the transport was specific, since vacuoles from other plant species showed no uptake of labelled anthocyanin, and strongly depended on acylation with sinapic acid, as deacylated glycosides were not taken up by isolated vacuoles. Hence, it is suggested that the acylation of anthocyanin, which is also required for the stabilization of colour in vacuoles, is important for transport, and that acylated anthocyanin is transported by a selective carrier and might be trapped by a pH-dependent conformational change of the molecule inside the acid vacuolar sap.Abbreviations CCCP
carbonylcyanide m-chlorophenylhydrazone
- EDTA
ethylenediaminetetraacetic acid
- ER
endoplasmic reticulum
- PVP
polyvinylpyrrolidone
- TLC
thin-layer chromatography 相似文献
435.
Zhengchao Yu Qilei Zhang Xiaoting Zheng Xuandong Huang Changlian Peng 《Journal of Plant Ecology》2019,12(3):507
Aims
Anthocyanin accumulation is the main factor underlying why young plant leaves turn red, and plant growth follows the principle of maximizing the economic efficiency of energy. There is a need to verify the role of young plant leaves turning red and confirm whether anthocyanin accumulation overconsumes the energy of the plant. 相似文献
436.
437.
Headspace ethylene accumulation effects on secondary metabolite production in Vaccinium pahalae cell culture 总被引:1,自引:0,他引:1
The influence of headspace ethylene on anthocyanin, anthocyanidin, and carotenoid accumulation was studied in suspension cultures of Vaccinium pahalae. Exogenous application of ethrel (an ethylene-releasing compound) significantly reduced growth and secondary metabolite production, whereas incorporation of 5.0 or 10.0 mg l-1 CoCl2 or NiCl2 effectively reduced ethylene accumulation and improved product accumulation, but AgNO3was toxic to cells. This study showed an overall negative impact of increased ethylene levels in the vessel headspace on phytochemical production in ohelo cell cultures. 相似文献
438.
439.
John de Majnik R. G. Joseph G. J. Tanner P. J. Larkin M. A. Djordjevic B. G. Rolfe J. J. Weinman 《Plant Molecular Biology Reporter》1997,15(2):134-140
A set of vectors has been developed that simplify shuttling expression cassettes between small plasmids of high copy number
ideal for experiments involving biolistic transient expression and a binary transformation plasmid. Three cassettes for the
expression of a cloned coding sequence behind different promoters have been modified; combinations of these cassettes can
be excised withNot I, and sequentially cloned into the transformation vector in a procedure that removes the first cloning site. The system
is demonstrated by inducing anthocyanin synthesis with paired regulatory genes of maize biolistically delivered to a maize
cell suspension, and then expressed in transformed tobacco. 相似文献
440.
The molecular genetics of seed maturation in maize 总被引:1,自引:0,他引:1
The maturation phase of seed formation involves coordinated expression of multiple developmental pathways. These processes include abscisic acid regulated responses associated with the arrest of embryo development and induction of anthocyanin synthesis in embryo and aleurone tissues. Studies of the maturation defective vivaparous mutants of maize suggest that one gene, viviparous-1 ( vpl ), regulates both of these pathways in the developing seed. Mutations at vpl reduce the sensitivity of the developing embryo to abscisic acid. In addition, Vpl is required for expression of Cl , a regulatory gene for the anthocyanin pathway. This interaction is consistent with the idea that Vpl and Cl function as part of a regulatory hierarchy controlling seed development. Molecular studies of vpl mutations which separate control of embryo arrest and anthocyanin synthesis suggest that these functions map to discrete domains in the Vpl protein. Therefore, coordinate control of diverse maturation processes may be achieved through expression of a functionally complex regulatory molecule. 相似文献