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记述采自云南省蚱属昆虫二新种,即南贡山蚱(Tetrix nangongshanensis sp.nov.)及大理蚱(Tetrix daliensis sp.nov)。模式标本保存于陕西师范大学动物研究所昆虫标本室。 相似文献
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云南省蚱属一新种*(直翅目:蚱科) 总被引:9,自引:2,他引:7
1990年5月,作者在鉴定西南林学院的蚱科标本中,发现有蚱属(Tetrix)一新种,定名为昆明蚱Tetrix kunmingensis sp.nov.模式标本保存于陕西师范大学生物系。 昆明蚱 Tetrix kunmingensis新种 雌性:体小型。头顶宽,其宽度略大于一复眼宽或为一复眼宽的1.5倍;前缘平直,从背面观几于复眼前缘平,具明显侧缘隆线;中隆线明显,直延至后头。颜面侧面观近垂直, 相似文献
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记述采自云南省苍山地区柯蚱属昆虫2新种,即波缘柯蚱Coptotettix undulatimarginis sp.nov.,及苍山柯蚱Coptotettix cangshanensis sp.nov.,模式标本保存于陕西师范大学动物研究所昆虫标本室. 相似文献
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记述采自广西壮族自治区羊角蚱属Criotettix Bolivar二新种,即断隆羊角蚱C. interrupta sp. Nov.及短翅羊角蚱C. brevipennis sp. Nov. 。模式标本保存于陕西师范大学动物研究所标本室。 相似文献
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中国尖顶蚱属的分类研究(直翅目:蚱总科:蚱科) 总被引:1,自引:0,他引:1
系统地研究了分布于中国的尖顶蚱属种类共计16种,其中有1新种,即二垫尖顶蚱Teredorusbipulvillus,sp.nov.。提供了分种检索表。模式标本保存于陕西师范大学动物研究所。 相似文献
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中国台蚱属三新种:(直翅目:蚱科) 总被引:9,自引:1,他引:9
本文记述采自云南、广西及西藏地区蚱科三新种,即云南台蚱Formosatettix yunnanensis sp.nov.,短背台蚱Formosatettix brachynotus sp.nov.和短角台蚱Formosatettix brevicornus sp.nov.。 相似文献
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In experiments on Black Sea skates (Raja clavata), the potential of the receptor epithelium of the ampullae of Lorenzini and spike activity of single nerve fibers connected to them were investigated during electrical and temperature stimulation. Usually the potential within the canal was between 0 and –2 mV, and the input resistance of the ampulla 250–400 k. Heating of the region of the receptor epithelium was accompanied by a negative wave of potential, an increase in input resistance, and inhibition of spike activity. With worsening of the animal's condition the transepithelial potential became positive (up to +10 mV) but the input resistance of the ampulla during stimulation with a positive current was nonlinear in some cases: a regenerative spike of positive polarity appeared in the channel. During heating, the spike response was sometimes reversed in sign. It is suggested that fluctuations of the transepithelial potential and spike responses to temperature stimulation reflect changes in the potential difference on the basal membrane of the receptor cells, which is described by a relationship of the Nernst's or Goldman's equation type.I. P. Pavlov Institute of Physiology, Academy of Sciences of the USSR, Leningrad. I. M. Sechenov, Institute of Evolutionary Physiology and Biochemistry, Academy of Sciences of the USSR, Leningrad. Pacific Institute of Oceanology, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Neirofiziologiya, Vol. 12, No. 1, pp. 67–74, January–February, 1980. 相似文献
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N. P. Vesselkin Yu. V. Natochin 《Journal of Evolutionary Biochemistry and Physiology》2010,46(6):592-603
Evolution of living organisms is closely connected with evolution of structure of the system of regulations and its mechanisms.
The functional ground of regulations is chemical signalization. As early as in unicellular organisms there is a set of signal
mechanisms providing their life activity and orientation in space and time. Subsequent evolution of ways of chemical signalization
followed the way of development of delivery pathways of chemical signal and development of mechanisms of its regulation. The
mechanism of chemical regulation of the signal interaction is discussed by the example of the specialized system of transduction
of signal from neuron to neuron, of effect of hormone on the epithelial cell and modulation of this effect. These mechanisms
are considered as the most important ways of the fine and precise adaptation of chemical signalization underlying functioning
of physiological systems and organs of the living organism 相似文献