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1.
记述刺齿虫兆属温州 1 新种:六毛刺齿虫兆Homidia hexaseta sp. nov.,该种的鉴别特征包括体色,下唇具光滑毛L1,头背部顶区具6根大刚毛,胸部第Ⅱ节具p4系列大刚毛,腹部第Ⅲ节中间具a2大刚毛,腹部第Ⅳ节具B6和Ae5-7大刚毛以及端节亚顶端齿远大于顶端齿。同时,本文还给出了浙江省刺齿虫兆属分种检索表。正模:♀,浙江省温州市泰顺县乌岩岭国家自然保护区,采集号C9271-4,2005-Ⅶ-29;副模:5♀♀。其中两头雌性副模标本保存于台州学院生命科学学院,其余标本保存于南京大学生命科学学院。  相似文献   

2.
记述浙江省大雷山刺齿虫兆属 1 新种,张氏刺齿虫兆Homidia zhangi sp. nov., 该种鉴别特征有体色,光滑下唇毛 L1,腹部第 4 节后侧中间 3+3 根大刚毛及长度相近的特化毛,腹部第 1 节和第 5 节特化毛的相对位置以及腹管侧瓣和弹器端区的大量纤毛状刚毛。模式标本保存于南京大学生命科学学院和台州学院生命科学学院。  相似文献   

3.
记述刺齿(虫兆)属温州1新种:六毛刺齿(虫兆) Homidia hexaseta sp.nov.,该种的鉴别特征包括体色,下唇具光滑毛L1,头背部顶区具6根大刚毛,胸部第Ⅱ节具p4系列大刚毛,腹部第Ⅲ节中间具a2大刚毛,腹部第Ⅳ节具B6和Ae5-7大刚毛以及端节亚顶端齿远大于顶端齿.同时,本文还给出了浙江省刺齿(虫兆)...  相似文献   

4.
记述裸长角虫兆属1有眼新种:横眼裸长角虫兆Sinella transoculata sp. nov.。该新种的鉴定特征有2+2横向排列单眼,身体背部(除腹部第V–VI节)散布有棕色斑点,腹部第II节具a2大刚毛,腹部第IV节后侧中间具3根大刚毛及侧面具5根大刚毛。文中给出了该新种的特征图及该属2+2单眼横向排列物种之间的特征差异。  相似文献   

5.
记述福建省刺齿属1新种:拟中华刺齿Homidia pseudosinensis sp.nov.。该新种的鉴定特征有胸部第2节后侧具近似M型的横条带,下唇毛序及腹部第4节毛序。本文提供了该物种的特征图及福建省刺齿属分种检索表。  相似文献   

6.
本文记述中国西部剌齿(虫兆)属1新种:中带剌齿(虫兆)H.mediofascia,sp.nov..该种区别属内其他种的主要特征是本种胸部第2节到腹部第2节背部中间具色带,第1腹节具大刚毛a1,腹部第4节后缘大刚毛7+7,粘管后侧面具光滑刚毛4根.本文还对属内5个相近种进行了比较.正模:早,陕西省安康市,2006-Ⅵ-15;副模:8♀♀,1♂以及8头酒精标本,陕西省安康市,2006-Ⅵ-15.1♀和1头酒精标本保存于南京大学,其他标本保存于台州学院生命科学学院.  相似文献   

7.
记述浙江省洞头岛拟祼长角虫兆属1无眼新种,岛屿拟裸长角虫兆Coecobrya islandica Shi&Pan sp.nov.。此新种的鉴定特征为无眼,弹器基具"光滑"刚毛,胫胕节内侧无"光滑"刚毛,下唇MREL1L2为光滑刚毛,X和X4为光滑刺状小刚毛,上唇基刚毛,腹部第II–IV节的感觉毛以及背部毛序。该新种与短毛拟裸长角虫兆Coecobrya brevis Xu et al.,2012最相似。本文给出了该新种的特征图及与相似种的详细特征比较。模式标本保存于台州学院生命科学学院和南京农业大学植保学院昆虫系。  相似文献   

8.
福建沼虾属二新种   总被引:2,自引:2,他引:0  
1975年,我们在福建省收集到许多淡水虾的标本,发现沼虾属有二个新种,记述于下。福建沼虾Macrobrachium fukienense,新种 额角上缘稍隆起,末端超出第一触角柄,上缘具7或8齿,基部1—2齿位于眼眶后方的头胸甲上;下缘凸,具2(少数仅1)齿。头胸甲具颗粒状突起,雄性尤为显著(图1),腹部的颗粒小而分散。尾节(图7)背面具2对背刺,后端呈尖刺状,后侧角具2对刺,中部具6—7对羽状刚毛,后缘的背面具5对细刚毛。 第一触角柄刺短于第1节的1/2,前例刺伸至第2节的中部,第2节稍短于第3节。鳞片(图 3)长约为宽的2.5—2.8倍。  相似文献   

9.
十八、棕色大剑水蚤Macrocyclopsfuscus(Jurine)雌性第4胸足内肢第3节内缘具羽状刚毛二根,末缘的外刺约为内刺长度的1.7倍。生活于池塘和稻田。采自宜宾和乐山。十九、闻名大剑水蚤Macrocyclopsdistinctus(Richard)雌性第4胸足第3节内缘具羽状刚毛二根,末缘的外刺约为内刺长度的1.3倍。生活于池塘和稻田。采自南部、宜宾和乐山。为我省第一次记录。二十、白色大剑水蚤Macrocyclopsalbidus(Jurine)雌性第4胸足内肢第3节内缘具羽状刚毛和刺状刚毛各一根,羽状刚毛约为刺状刚毛长的4倍。生活于小河和池塘。采自泸县和纳溪。二十一、寡毛大剑…  相似文献   

10.
报道了球角跳科在中国的1新纪录属"米氏球角跳属",并描述了1新种,新种命名为鞍山米氏球角跳Mitchellania anshanensis sp.nov.鞍山米氏球角跳与描述自西伯利亚的M.subhorrida Babenko,1994相似,两者的主要区别在于:新种体长仅0.8mm,腹部第5节背面p1毛之间体表颗粒数量为17~20,触角第4节腹面有20~25个弯曲且顶端膨大的短小感觉毛,爪部生有1内齿,但无侧齿,胸部第2和第3节背面感觉毛短小精巧,腹部第1~3节背面感觉毛与普通刚毛长度相同;M.subhorrida体长达到1.5mm,腹部第5节背面p1毛之间体表颗粒数量为8~10,触角第4节腹面弯曲且顶端膨大的短小感觉毛数量范围为30~35个,爪部生有1内齿和1侧齿,胸部第2节、腹部第1~3节背面感觉毛与普通刚毛长度相同,胸部第3节和腹部第2节背面感觉毛短小粗壮.模式标本保存在中国科学院上海植物生理生态研究所.  相似文献   

11.
通过对6种藓类植物,即褶叶青藓(Brachythecium salebrosum(Web.et Mohr.)B.S.G.)、湿地匐灯藓(Plagiomnium acutum(Lindb.)Kop.)、侧枝匐灯藓(Plagiomnium maximoviczii(Lindb.)Kop.)、大凤尾藓(Fissidensnobilis Griff.)、大羽藓(Thuidium cymbifolium(Doz.et Molk.)B.S.G.)和大灰藓(Hypnum plumaeforme Wils.)嫩茎和老茎的石蜡切片和显微观察发现,同一藓类植株的嫩茎和老茎,茎结构稳定,不同种藓类植物茎横切面具有不同特征.植物体茎横切面形状、表层细胞的层数、细胞大小和细胞壁厚薄、皮层细胞大小和形状、中轴的有无以及比例等特征可以作为藓类植物的分科分类依据之一.  相似文献   

12.
13.
Seed germination of an aurea mutant of tomato ( Lycopersicon esculentum Mill.) is promoted by continuous irradiation with red, far-red or long-wavelength far-red (758 nm) light as well as by cyclic irradiations (5 min red or 5 min far-red/25 min darkness). Far-red light applied immediately after each red does not change the germination behaviour. Seed germination of the isogenic wild-type, cv. UC-105, is promoted by continuous and cyclic red light while it is inhibited by continuous and cyclic far-red light and by continious 758 nm irradiation. Far-red irradiation reverses almost completely the promoting effect of red light. The promoting effect (in the aurea mutant) and the inhibitory effect (in the wild-type) of continuous far-red light do not show photon fluence rate dependency above 20 nmol m−2 s−1. It is concluded that phytochrome controls tomato seed germination throgh low energy responses in both the wild type and the au mutant. The promoting effect of continuous and cyclic far-red light in the au mutant can be attributed to a greater sensitivity to Pfr.  相似文献   

14.
真菌类遗传学分析的知识结构教学   总被引:5,自引:2,他引:3  
罗桂花 《遗传》2002,24(3):349-350
本文以认知结构理论为指导,讨论了真菌类遗传分析与高等动植物遗传分析的内在联系,认为利用这种内在联系进行教学可收到好的效果并说明了作者的具体教学过程。 Abstract:In the paper, the relationship between genetic analysis of Fungi and genetic analysis of high animal and plant was discussed.A good results were obtained when we adopted this method in the teaching.  相似文献   

15.
16.
A complex analysis of seasonal fluctuations of the mean group parameters of the system of regulation of lipid peroxidation has been performed in liver of Balb/c mice. Association of lipid characteristics and morphophysiological parameters is studied in the Balb/c mouse liver. An inter-connection is revealed between the liver index and the amount of lysoforms of phospholipids, the scale and character of the interconnection differing essentially depending on proportion of phos-phatidylcholine in mouse liver phospholipids.  相似文献   

17.
Summary Anthers were cultured from two sets of seven lines of hexaploid wheat (Triticum aestivum L.) with different cytoplasms, the euplasmic nucleus donors, Siete Cerros 66 and Penjamo 62, as well as their six alloplasmic lines derived from wild relative species of the genera Triticum and Aegilops. Significant cytoplasmic and nuclear effects but no cytoplasmic-nuclear interaction were found for embryogenic anther response, with the best performance of Penjamo 62 in Ae. kotschyi cytoplasm. Plant regeneration was not affected significantly by the cytoplasmic background of the lines cultured. The possible genetic implications of the observed cytoplasmic and nuclear influences on the in vitro haploid induction of wheat are discussed.  相似文献   

18.
The levels of endogenous phytohormones and respiratory rate in nine sorts of flowers such as Cymbidium faberi Rolfe, Nopalxochia ackermannii Kunth and others were investigated both at full bloom and senescence and meanwhile the effect of exogenous phytohormones on prolonging the blossoms and promoting ethylene production were tested. There is a high content of endogenous ethylene in all the long-lived flowere, about 3–16 folds higer than the short-lived ones. There is a high level of ABA at full blooming flowers of short-lived flowers, in which there is no or only some cytokinins in it, but the ratio of CTK (6BA+zeatin)/ABA is smaller(l.7). The endogenous ABA reached a much higher level at senescence in all nine sorts of flowers, so it is reasonable to consider that it is ABA which plays an important role of regulation in controlling flower's senescence. There is a much higher level of GA3 and zeatin in the long-lived flowers which is not demonstrated in the shortlived ones. The respiratory rate is one of the factors controtling the longevity of flowers, but it does not play a decided role. Application of 6BA and zeatin prolongs distinctly orchid’s longevity, however exogenous IAA through the promotive action on ethylene production, evidently extends the longevity of the flowers of the Nopalxochia ackermannii Kunth.  相似文献   

19.
20.
Seven strains of aerobic carbon monoxide-oxidizing bacteria (carboxydebacteria) when growing on CO as sole source of carbon and energy had doubling times which ranged from 12–42 h. The activity profiles obtained after discontinuous sucrose density gradient centrifugation indicated that the CO-oxidizing enzymes are soluble and the hydrogenases are membrane-bound in all strains examined. The CO-oxidizing enzymes of Pseudomonas carboxydohydrogena, Pseudomonas carboxydoflava, Comamonas compransoris, and the so far unidentified strains OM2, OM3, and OM4 had a molecular weight of 230,000; that of Achromobacter carboxydus amounted to 170,000. The molecular weights of the CO-oxidizing and H2-oxidizing enzymes turned out to be identical. The cell sonicates were shown to catalyze the oxidation of both CO and H2 with methylene blue, thionine, phenazine methosulfate, toluylene blue, dichlorophenolindophenol, cytochrome c or ferricyanide as electron acceptors. Methyl viologen, benzyl viologen, FAD+, FMN+, and NAD(P)+ were not reduced. The spectrum of electron acceptors was identical for all strains tested. Neither free formate, hydrogen nor oxygen gas were involved in the CO-oxidation reaction. Methylene blue was reduced by CO at a 1:1 molar ratio. The results indicate that CO-oxidation by carboxydobacteria is catalyzed by identical or similar enzymes and that the reaction obeys the equation CO+H2OCO2+2H++2e- as previously shown for Pseudomonas carboxydovorans.Dedicated to Otto Kandler remembering almost three decades of enjoyable cooperation  相似文献   

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