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1.
本文报道寄生于我国非洲蝼蛄(Gryllotalpa africana Palisot de Beauvois)上的蝼蛄菌属(Tettigomyces)11个种,其中新种1个:线状蝼蛄菌(T.filiformis Ye);国内新记录种10个:渐尖蝼蛄菌(T.acuminatus Thaxt.),非洲蝼蛄菌(T.africanus Thaxt.),短蝼蛄菌(T.brevis Thaxt.),毛生蝼蛄菌(T.chaetophilus Thaxt.),混淆蝼蛄菌(T.co-nfusus Thaxt.),蝼蛄菌(T.gryllotalpae Thaxt.),印度蝼蛄菌(T.indicus Thaxt.),间型蝼蛄菌(T.intermedius Thaxt.),翅生蝼蛄菌(T.pterophilus Thaxt.),普通蝼蛄菌(T.vulgaris Thaxt.)。本文所研究的全部标本都保存于广东省微生物研究所。  相似文献   

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蝼蛄的声学通讯   总被引:2,自引:0,他引:2  
何忠 《生物学通报》1995,30(12):6-7
通过对蝼蛄声学通讯的研究,揭示了蝼蛄鸣叫时发出的志信号对其种群所引起的行为反应,和蝼蛄声学通讯的特点,观察了发声器的结构与听器的作用。同时,记述了观察分析昆虫声信号的一般方法。声引诱的实验证明,不同参量的鸣声信号对蝼蛄的引诱作用不同。  相似文献   

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我国三种蝼蛄的雄性生殖器鉴别   总被引:3,自引:0,他引:3  
蔡柏岐  牛瑶 《昆虫知识》2002,39(2):152-153
本文记述 3种蝼蛄 (单刺蝼蛄GryllotalpaunispinaSaussure,东方蝼蛄G .orientalisBurmeister及河南蝼蛄G .henanaCaietNiu)的雄生殖器  相似文献   

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给出了中国蝼蛄属的检索表,并描述了该属1新种G.mabiana sp.nov..新种与尼泊尔种类 G.pygmaea相似,但可以通过如下特征加以区分:径脉末端不分岔,翅室呈三角形,阳茎基片横向骨片的侧端尖锐;此新种还与河南蝼蛄G.henana相似,区别为:新种前翅超过第5节背板,后翅到达第4节背板后缘,而河南蝼蛄G.henana前后翅均未伸达腹部第4节背板后缘;新种前胸背板无心纹斑,河南蝼蛄G.henana有;新种阳茎侧突囊弯钩状,后者为弯月形.  相似文献   

5.
黄标  吴彩秀 《昆虫知识》2006,43(4):566-566
蝼蛄是典型的地下害虫。在我国发生的有华北蝼蛄Gryllotalapunispina、东方蝼蛄G.orientalis、台湾蝼蛄G.formosana。近年报道还有金秀蝼蛄G.jinxiuensis和河南蝼蛄G.henana[1]。在广西发生的为东方蝼蛄,主要危害水稻,其次是麦、棉、烟等作物,还可取食杂草为主。蝼蛄咬食萌发的  相似文献   

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云南草坪中东方蝼蛄的空间分布型   总被引:1,自引:0,他引:1  
赵娜  刘荣堂  贾力  张晓宇 《昆虫知识》2007,44(4):513-516
在云南省思茅市体育场,通过实地调查和统计分析后发现东方蝼蛄Gryllotalpa burmeister Burmeister是草坪的重要害虫之一,主要危害草坪草和种子。应用多个聚集度指标和Iwao回归分析法对东方蝼蛄的分布格局进行研究,结果表明,东方蝼蛄在土壤中呈聚集分布,分布的基本单位是个体群。  相似文献   

7.
我国的“非洲蝼蛄”应为“东方蝼蛄”   总被引:4,自引:0,他引:4  
康乐 《昆虫知识》1993,30(2):124-127
<正> 最早报道我国有非洲蝼蛄Gryllotalpa af-ricana Palisot的是原苏联昆虫学家Bey-Bien-ko,他研究了采自我国东北及兴安岭地区的蝼蛄标本,鉴定为非洲蝼蛄G.africana Pali-sot。我国学者徐荫祺(Hsu Yin-chi)也报道了我国北平和江苏等地有非洲蝼蛄的分  相似文献   

8.
李慧  常景玲 《四川动物》2006,25(3):552-553
本文采用组织学技术对非洲蝼蛄消化道的组织结构进行了初步研究,其消化道具有特殊的组织结构,此项研究为进一步防治病虫害提供了依据。  相似文献   

9.
区别华北蝼蛄Gryllotalpa unispina Saussure及非洲蝼蛄G.africana Palisot de Beauvois的形态,一向是根据体形大小及其后足胫节上缘内侧所生刺之数目。国内及日本多数参考资料上都是记载华北蝼蛄生有刺2个,非洲蝼蛄有刺4个,问题就发生在这里。 在农业昆虫实验中,比较此两种蝼蛄的形态时,同学们经常会提出下面的一个问题:非洲蝼蛄后胫节上缘内侧生有4个刺很明显,但华北蝼蛄生有刺2个则  相似文献   

10.
<正> 1985年5月7—12日,笔者对易贡茶场近年来直插茶园大面积死苗原因进行了初步调查,发现造成上述原因之一是蝼蛄所致。经查资料,蝼姑在西藏属首次发现。蝼蛄在易贡主要为害一年生茶苗,二年生茶苗次之,多年生茶园也有分布。蔬菜、青稞、小麦、大豆也见受害,但一般较轻。据在一年生茶园抽样调查(海拔2,160—2,270米),每平方米有蝼蛄平均11头,最高达24头,且沙土地多于粘土地。蝼蛄的成虫和若虫咬食茶苗和嫩茎,重者咬断,轻者咬成  相似文献   

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Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.  相似文献   

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Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.  相似文献   

17.
Curcumin is the yellow pigment of turmeric that interacts irreversibly forming an adduct with thioredoxin reductase (TrxR), an enzyme responsible for redox control of cell and defence against oxidative stress. Docking at both the active sites of TrxR was performed to compare the potency of three naturally occurring curcuminoids, namely curcumin, demethoxy curcumin and bis-demethoxy curcumin. Results show that active sites of TrxR occur at the junction of E and F chains. Volume and area of both cavities is predicted. It has been concluded by distance mapping of the most active conformations that Se atom of catalytic residue SeCYS498, is at a distance of 3.56 from C13 of demethoxy curcumin at the E chain active site, whereas C13 carbon atom forms adduct with Se atom of SeCys 498. We report that at least one methoxy group in curcuminoids is necessary for interation with catalytic residues of thioredoxin. Pharmacophore of both active sites of the TrxR receptor for curcumin and demethoxy curcumin molecules has been drawn and proposed for design and synthesis of most probable potent antiproliferative synthetic drugs.  相似文献   

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正Dear Editor,In December 2019, a novel human coronavirus caused an epidemic of severe pneumonia(Coronavirus Disease 2019,COVID-19) in Wuhan, Hubei, China(Wu et al. 2020; Zhu et al. 2020). So far, this virus has spread to all areas of China and even to other countries. The epidemic has caused 67,102 confirmed infections with 1526 fatal cases  相似文献   

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