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提高鸡免疫力的基本条件 总被引：1，自引：0，他引：1
优化鸡的免疫力就是给鸡提供优良的管理措施、充足的营养水平、良好的卫生和环境条件,只有认清这些影响免疫状态的因素,才可能获得最佳的经济效益。 相似文献
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Shenoy AR Wellington DA Kumar P Kassa H Booth CJ Cresswell P MacMicking JD 《Science (New York, N.Y.)》2012,336(6080):481-485
Inflammasomes are sensory complexes that alert the immune system to the presence of infection or tissue damage. These complexes assemble NLR (nucleotide binding and oligomerization, leucine-rich repeat) or ALR (absent in melanoma 2-like receptor) proteins to activate caspase-1 cleavage and interleukin (IL)-1β/IL-18 secretion. Here, we identified a non-NLR/ALR human protein that stimulates inflammasome assembly: guanylate binding protein 5 (GBP5). GBP5 promoted selective NLRP3 inflammasome responses to pathogenic bacteria and soluble but not crystalline inflammasome priming agents. Generation of Gbp5(-/-) mice revealed pronounced caspase-1 and IL-1β/IL-18 cleavage defects in vitro and impaired host defense and Nlrp3-dependent inflammatory responses in vivo. Thus, GBP5 serves as a unique rheostat for NLRP3 inflammasome activation and extends our understanding of the inflammasome complex beyond its core machinery. 相似文献
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Non destructive methods for quantification of carbon seques-tration in tropical trees are inadequately developed. We described a stan-dardized method for estimating carbon stock in teak (Tectona grandi... 相似文献
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Chitra Nehra Avinash Marwal Rakesh Kumar Verma Megha Mishra Pradeep Sharma 《The Journal of Horticultural Science and Biotechnology》2019,94(4):475-480
India is one of the world’s largest producers of papaya. Viruses, mainly begomoviruses and potyviruses, cause a significant loss in papaya production. The study described here has identified a new species of begomovirus and a new species of betasatellite infecting Carica papaya in India. The sequences of the begomovirus and betasatellite show 90.03% nucleotide sequence identity to an isolate of Radish leaf curl virus and 92.25% identity to an isolate of Tomato leaf curl betasatellite, respectively. Maximum likelihood phylogenetic tree of begomovirus sequence of isolate DP2 (KX353622) showed distant relationships with previously characterised begomoviruses. Recombination analysis proposed six recombination breakpoints in begomovirus genome with other geographical begomovirus isolates. 相似文献
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Genetic diversity and population structure of Indian melon (Cucumis melo L.) landraces with special reference to disease and insect resistance loci 
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下载免费PDF全文 Lakshamana Reddy D. C. Sudarshini K Venkat Anand C Reddy C. Aswath K. N. Avinash H. Nandini E. Sreenivasa Rao 《Plant Breeding》2016,135(3):384-390
This study was aimed to examine the genetic diversity and population structure of Indian melon landraces with special reference to disease and insect resistance loci. Thirty‐six simple sequence repeat (SSR) markers along with seven markers at disease and insect resistance loci were used for this purpose on a panel of 91 accessions available at Indian Institute of Horticultural Research, Bengaluru, India. Model‐based structure analysis revealed the presence of four groups that were consistent with the results of principal coordinate analysis (PCoA). The delineation of populations was mostly based on geography with improved varieties as a separate group. Ten accessions have been identified to possess beneficial alleles at all the selected disease resistance loci and shall be useful for incorporating multiple disease resistance after phenotypic validation. The results obtained in the current study demonstrate the importance of the Indian melon group as a valuable genetic reservoir and the need to plan strategies for its conservation and utilization in breeding programmes. 相似文献
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Avinash?Pandey I.?S.?BishtEmail author K.?V.?Bhat P.?S.?Mehta 《Genetic Resources and Crop Evolution》2011,58(8):1213-1224
Role of informal seed system in landrace diversification, in situ conservation on-farm and sustainability in production were investigated as a case study for rice diversity in Indian Himalayas.
The diachronic pattern of landrace occurrence revealed substantial increase, both in landrace number and frequency, in time.
The local level seed supply in Uttarakhand Himalaya revealed that about 96% seed supply originated from informal system and
a mere 4% seed supply is met from formal seed supply networks. In higher elevation ranges, beyond 1200 masl, largely landrace
cultivation is practiced and a greater landrace diversification in traditional production was observed. Substantial variations
due to environmental adaptations in niche habitats help provide important donor germplasm for crop improvement to users. Further,
the population genetic structure also indicated enough diversity being maintained on-farm. Developing pathways for strengthening
local level seed system for landrace diversification linked to sustainability in food production and conserving agro-biodiversity
has been emphasized. 相似文献