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最近我们从全国动物学科研单位和高等院校借调来大批的角蝉科标本,进行系统的分类研究,从中发现有二新属及二新种,均采自云南西双版纳,现在先把它们加以记载。 相似文献
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中国的广翅蜡蝉科附八新种 总被引:1,自引:0,他引:1
广翅蜡蝉科的种类,多数为害木本植物,少数为害禾本科草本植物,有的是果树、森林和农作物的害虫。但关于广翅蜡蝉科的研究,过去很不充分,我国的种类、分布与寄主关系,至今还不清楚。1935年胡经甫的昆虫名录中列入11种(包括3种同物异名),1959年《中国果树病虫志》中列了5种。 我们根据三十年来在全国各地的采集调查,和全国兄弟单位提供的标本,共鉴定出26种。本文着重记录它们的分布及其为害植物,并记载新种8种。 相似文献
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金翅夜蛾亚科八新种及一些种类的订正 总被引:2,自引:0,他引:2
金翅夜蛾亚科的种类,有的在外形上非常相似,因之过去文献记载常有混淆的地方和鉴定上的错误。本文讨论了一些种类的区别,纠正某些错误的记载,并报道8个新种。 所有新种的模式标本都暂在西北农学院昆虫标本室保存。 相似文献
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Under consideration are plant species stability in respect to their occurrence in the foreign communities, and a role of abiotic factors in development of alpine comminities. The experiment was started in 1989 on Malaya Khatipara Mt (NW Caucasus) at the altitude of 2750 m. a. s.l. included reciprocal transplantation of tussock sites between four alpine communities. Significant changes in the tussock composition were observed due to better or worse acclimation of particular species, due to lost of some species, and because of invasion of aboriginal species from the surroundings into the transplanted sites. The most species involved appeared to be stable in respect to transplantations and some of them even better developed under new ecological conditions, the latter case indicating lack of coincidence of the aut- and sinecological optima. 相似文献
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Samples of water, sediments and aquatic weeds were collected from 26 sites in the Nyando River catchment of the Lake Victoria basin in 2005–2006. The objective was to investigate levels of organochlorine pesticides that have either been banned or are restricted for use in Kenya. The pesticides investigated were lindane, aldrin, endosulfan, endrin, dieldrin, DDT, heptachlor and methoxychlor. These pesticides had previously found wide applications in public health and agriculture in Kenya for control of disease vectors and crop pests respectively. Results showed that mean concentrations were highest for methoxychlor (8.817 ± 0.020?µg l?1) in water, sediments (92.893 ± 3.039 µg kg?1), and weeds (39.641 ± 3.045?µg kg?1), the weeds also tended to accumulate aldrin (15.519 ± 3.756?µg kg?1). The results show that the pesticides are still in use and are detected in the catchment. Stringent management and public awareness measures are required to enforce the ban on the organochlorine pesticides in order to safeguard the environment and ecosystems of Lake Victoria. 相似文献
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金翅夜蛾亚科Plusiinae的研究 总被引:1,自引:0,他引:1
金翅夜蛾亚科(Plusiinae)是夜蛾科中一个显著的类群,从眼的睫毛,M_2的存在与前翅通常具有金银斑可以认识。但是不同属、种在外形上区别极少,所以如果不根据生殖器,要正确鉴定所有的属种,几乎是不可能。 这一亚科全世界已记载的约230余种,其分布于古北区的有107种。中国已记载的共70种。陕西省已有记载的只有6种,可能分布到的约21种。1963年朱弘复、陈一心二同志在《中国经济昆虫志(第三册)鳞翅目夜蛾科(一)》一书中记述了11种,提到其中5 相似文献
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Megan Y Murray Lyubov Zaitseva Martin J Auger Jenny IO Craig David J MacEwan Stuart A Rushworth Kristian M Bowles 《Cell cycle (Georgetown, Tex.)》2015,14(14):2367-2375
Multiple Myeloma (MM) is a haematologic malignancy characterized by the accumulation of clonal plasma cells in the bone marrow. Over the last 10–15 y the introduction of the proteasome-inhibitor bortezomib has improved MM prognosis, however relapse due to bortezomib-resistance is inevitable and the disease, at present, remains incurable. To model bortezomib-resistant MM we generated bortezomib-resistant MM cell lines (n = 4 ) and utilised primary malignant plasma cells from patients relapsing after bortezomib treatment (n = 6 ). We identified enhanced Bruton''s tyrosine kinase (BTK) activity in bortezomib-resistant MM cells and found that inhibition of BTK, either pharmacologically with ibrutinib (0.5 μM) or via lenti-viral miRNA-targeted BTK interference, re-sensitized previously bortezomib-resistant MM cells to further bortezomib therapy at a physiologically relevant concentration (5 nM). Further analysis of pro-survival signaling revealed a role for the NF-κB p65 subunit in MM bortezomib-resistance, thus a combination of BTK and NF-κB p65 inhibition, either pharmacologically or via further lenti-viral miRNA NF-κB p65 interference, also restored sensitivity to bortezomib, significantly reducing cell viability (37.5 ± 6 .9 %, ANOVA P ≤ 0 .001). Accordingly, we propose the clinical evaluation of a bortezomib/ibrutinib combination therapy, including in patients resistant to single-agent bortezomib. 相似文献
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