黄曲条跳甲触角感器的扫描电镜观察

应用扫描电镜对黄曲条跳甲Phyllotreta striolata(Fabricius)成虫的触角结构、感器的类型、数量和分布进行了观察,并对雌、雄成虫触角及感器之间的差异进行了比较。结果表明:黄曲条跳甲成虫的触角为线形,共11节,即柄节、梗节和9个鞭小节。雄虫触角的长度略长于雌虫(雄:1.48±0.03 mm;雌:1.42±0.05 mm),其中,雄虫触角鞭节第3亚节长度明显长于雌虫(雄:0.19±0.02 mm;雌:0.15±0.01 mm,t=3.77,P=0.0054),且明显膨大,其余各节长度和形态在雌雄虫间差异不显著。触角感器共9种,分别为毛板形感器、刺形感器、毛形感器1型和2型、锥形感器1型、2型和3型、槽钉形感器和耳形感器。各种感器中除耳形感器仅分布在雄性触角末节外,其他类型感器的分布在雌、雄性个体间无明显差异。雄成虫触角上各种感器数量总和明显多于雌成虫,其中,毛形感器1型、锥形感器1型和耳形感器的数量雄成虫明显多于雌成虫。比较并讨论了黄曲条跳甲触角上不同类型感器的适生意义,研究结果将有助于理解黄曲条跳甲触角感器的功能和行为机制。     

桑天牛头部附器感器的扫描电镜观察

利用扫描电镜观测桑天牛Apriona germari(Hope)成虫的触角、下颚须和下唇须上感器的分布及超微结构。结果表明,雌、雄桑天牛触角上共存在6种感器,即毛形感器、锥形感器、刺形感器、芽形感器、鳞形感器和棒形感器,其中锥形感器分5种亚型,刺形感器分2种亚型,且部分感器在雌雄成虫触角上的分布模式及数量存在差异,如棒形感器及角锥形感器丛模式仅在雄虫触角上发现,而雌虫触角上的细锥形感器和耳锥形感器多于雄虫,芽形感器少于雄虫;下颚须和下唇须存在5种感器,即毛形感器、刺形感器、末梢锥形感器、钟形感器和隙缝感器,各种感器在雌、雄天牛下颚须和下唇须上的分布和数量无明显的区别。     

微红梢斑螟(鳞翅目:螟蛾科)成虫触角感器的扫描电镜观察

通过扫描电镜对微红梢斑螟雌、雄成虫触角的外部形态及感器进行观察,结果表明,微红梢斑螟雌、雄成虫触角共观察到10类感器.其中,毛形感器(Ⅰ、Ⅱ型)、刺形感器(Ⅰ、Ⅱ型)、耳性感器、腔锥形感器、Bǒhm氏鬃毛共7类感器在雌、雄虫触角上均有分布;而栓锥形感器仅在雌虫触角上被发现,钟形感器和鳞形感器这2类感器仅在雄虫触角上被发现.各类型感器的数量以鞭节上最多,且多处于触角的腹面和侧面.感器的类型、数量及形态在雌、雄虫触角上存在性二型现象.     

井上蛀果斑螟触角感器的扫描电镜观察

利用扫描电镜对井上蛀果斑螟Assarainouei Yamanaka雌雄成虫触角及触角感器的超微结构、类型和分布进行详尽观察。结果表明,井上蛀果斑螟触角上主要分布有9种类型的感器,其中毛形感器2种,锥形感器、刺形感器、耳形感器、腔锥形感器、腔乳头状感器、鳞形感器及Bohm氏鬃毛均1种。其中的腔乳头状感器只在雌虫触角上有分布,雄虫触角鳞形感器及末端毛形感器的数量均多于雌虫。     

锈色粒肩天牛触角感器的扫描电镜观察

利用扫描电镜对锈色粒肩天牛Apriona swainsoni雌、雄成虫触角上的感器结构、分布及数量进行观察和研究。结果表明:锈色粒肩天牛成虫触角鞭节状,由柄节,梗节和9节鞭节组成。在雌、雄成虫触角上分布着4类8种感器,分别是2种毛形感器,2种刺形感器,3种锥形感器和1种芽形感器。而发锥形感器和短刺形感器只分布于雄虫的触角上,不同类型感器在雌、雄个体上的长度及分布数量不同。     

Antennal sensilla of adult Dacne picta observed with scanning electron microscope

利用扫描电子显微镜(SEM)对二纹蕈甲Dacne picta Crotch的触角感器进行了观察.发现该虫的触角感器有6种类型,分别为毛形感器、刺形感器、锥形感器、栓锥形感器、钟形感器和B(o)hm氏鬃毛.其中,锥形感器有4种形态,刺形感器具有3种形态,毛形感器、栓锥形感器和钟形感器各有1种形态.感器的数量和分布在触角的每一节上差异较大.     

二纹蕈甲成虫触角的感器类型与分布特点

利用扫描电子显微镜（SEM）对二纹蕈甲Dacnepicta Crotch的触角感器进行了观察。发现该虫的触角感器有6种类型,分别为毛形感器、刺形感器、锥形感器、栓锥形感器、钟形感器和B曲m氏鬃毛。其中,锥形感器有4种形态,刺形感器具有3种形态,毛形感器、栓锥形感器和钟形感器各有1种形态。感器的数量和分布在触角的每一节上差异较大。     

宽胫夜蛾成虫触角和下唇须感器的超微形态

触角和下唇须是昆虫头部的重要感觉器官,其上被有多种类型的感器。宽胫夜蛾Protoschinia scutosa是一种重要的农业害虫,但其触角和下唇须感器研究较少。本研究利用扫描电子显微镜观察了宽胫夜蛾的触角和下唇须感器的类型、分布和超微形态。宽胫夜蛾的雌雄触角均为丝状,雌虫触角鞭节明显短于雄虫。雌雄触角均分布有8种类型感器,分别为Bhm氏鬃毛、鳞形感器、毛形感器、刺形感器、耳形感器、锥形感器、腔锥形感器和栓锥形感器。其中,毛形感器数量最多,且雄性毛形感器的数量明显多于雌性。宽胫夜蛾的下唇须为长管状,雌雄下唇须长度无显著差异。共观察到5种类型感器,即毛形感器、钟形感器、鳞形感器、刺形感器和棒形感器。毛形感器分布在下唇须基部第1节和端部第3节的陷窝器内,钟形感器位于第1节毛形感器簇之中,鳞形感器在各节均有分布,刺形感器和棒形感器只见于第3节。并对宽胫夜蛾的触角和下唇须感器的功能进行初步的推测和讨论。为昆虫感器功能分析、分类学和行为学研究提供依据。     

齿缘刺猎蝽成虫触角和跗节感器的扫描电镜观察

利用扫描电镜观察了齿缘刺猎蝽(Sclomina erinacea Stal)成虫触角及前足跗节上的感受器,结果表明:齿缘刺猎蝽触角5节,由柄节、梗节和3个鞭节构成,梗节最短;雌、雄虫前足跗节均为3节。触角上共有3种感器,分别为毛形感器、刺形感器和锥形感器,其中,毛形感器、锥形感器各有两种类型,刺形感器有3种类型。雌、雄个体间触角感器类型及分布未见明显差异。前足跗节上仅存在刺形感器,该感器在雄虫前足跗节上的分布较雌虫密集。     

Scanning electron microscopy studies of antennal sensilla of Monolepta hieroglyphica

利用扫描电镜观察了双斑长跗萤叶甲Monolepta hieroglyphica (Motschulsky)成虫触角及其感器的形态与分布.结果表明:双斑长跗萤叶甲成虫触角为线状,由柄节、梗节和鞭节组成,鞭节有9节,其中,雄虫的触角比雌虫长;感器类型有毛形感器(1型、2型和3型)、刺形感器、锥形感器(1型和2型)、腔锥形感器、B(o)hm氏鬃毛、钟形感器共9种.雌雄成虫触角感器类型无差异,但雄虫触角上的感器分布要比雌虫的稠密.     

中红侧沟茧蜂触角感受器的扫描电镜观察

利用扫描电镜对中红侧沟茧蜂Microplitis mediator的触角感受器进行了观察,发现了6个类型的感器,分别为毛形感器、板形感器、刺形感器、钟形感器、锥形感器、腔锥形感器。其中,毛形感器具有2种形态,锥形感器具有4种形态。钟形感器仅分布于雌蜂的触角上,锥形感器Ⅲ和Ⅳ仅分布于雄蜂的触角上。结合感受器的形态、分布和已报道的触角电位反应数据,对各感受器的功能进行了推测。     

属模巨齿蛉成虫感器的超微形态

为了解属模巨齿蛉成虫多个部位感器的超微结构及其对生命活动的影响,本文对属模巨齿蛉成虫的触角、大颚、翅缘和生殖器4个部位进行了电镜扫描。研究发现,触角有7种感器,分别是毛形感器Ⅰ型、Ⅱ型、Ⅲ型、Ⅳ型、腔锥感器、锥形感器、柱形感器;大颚有3种感器,分别是腔锥感器、锥形感器、刺形感器;翅缘有4种感器,分别是毛形感器Ⅱ型、Ⅲ型、Ⅳ型、腔锥感器;雌性成虫生殖器有7种感器,分别是毛形感器Ⅱ型、Ⅲ型、Ⅳ型、Ⅴ型、Ⅵ型、锥形感器、钟形感器。柱形感器是触角的特殊感器,钟形感器是雌性成虫生殖器的特殊感器。毛形感器是触角、翅缘和生殖器主要感器,而大颚上没有毛形感器。触角和生殖器上的感器类型最多,且分布最密集,这与触角和生殖器对成虫的交配、产卵行为具有重要作用相吻合。     

疟疾媒介中华按蚊触角感器的扫描电镜观察

【目的】明确中华按蚊Anopheles sinensis雌成虫与幼虫触角感器的类型、形态和分布。【方法】利用光学显微镜观察中华按蚊成虫与幼虫触角的形态结构,利用扫描电镜观察触角上的感器类型、形态和分布。【结果】中华按蚊雌成虫触角由柄节、梗节和鞭节组成,鞭节有13个亚节。触角上共发现4种类型的感器,分别为毛形感器(锐型和钝型)、刺形感器(大型和小型)、锥形感器(Ⅰ型和Ⅱ型)和腔锥形感器(大型和小型)。雌成虫触角各类感器总计约1 135.67±86.75个,其中毛形感器数量最多(662.00±6.22个),随后是刺形感器(294.67±33.35个)和锥形感器(146.00±42.39个),腔锥形感器数量最少(36.50±5.90个)。毛形感器、刺形感器和锥形感器在鞭节的每个亚节均有分布,而大型腔锥形感器在第9-11亚节没有分布,小型腔锥形感器仅分布于第13节的顶端。幼虫触角的鞭节不分亚节,呈管状,触角末端有一个感觉锥,鞭节上分布有与成虫锥形感器相似的锥形凸起,初步定名为类锥形感器,其数量和大小随幼虫龄期的增长而显著增加,锥体表面的凹槽越来越明显,其功能还需要通过超微结构和电生理等研究进一步确定。【结论】本研究对中华按蚊幼虫和雌成虫触角感器的形态特征、类型、数量及其分布进行了观察和分析,结果为进一步研究中华按蚊感器的生理功能奠定了基础。     

豆柄瘤蚜茧蜂触角感受器的扫描电镜观察(英文)

利用扫描电镜对豆柄瘤蚜茧蜂Lysiphlebus fabarum的触角感受器进行了观察, 发现有7 种感受器, 分别为毛形感受器、刺形感受器Ⅰ型、刺形感受器Ⅱ型、锥形感受器、腔锥形感受器Ⅰ型、腔锥形感受器Ⅱ型和板形感受器。毛形感受器是数量最多的感器; 除了腔锥形感受器Ⅱ型只在雌虫触角发现外, 雌、雄触角感受器的类型和结构没有较大的差别, 并且腔锥形感受器Ⅱ是数量最少的感器。     

Antennal sensilla of the click beetle,limonius aeruginosus (OLIVIER) (COLEOPTERA: ELATERIDAE)

Antennal sensilla typology, number and distribution of the click beetle Limonius aeruginosus (Olivier) (Coleoptera: Elateridae) were studied using scanning electron microscopy. The serrate antennae of both sexes of L. aeruginosus consist of the scape, pedicel and of the flagellum which is composed of 9 flagellomeres. In both sexes, 5 types of sensilla basiconica, 1 type of sensilla trichodea, 1 type of sensilla chaetica, 1 type of sensilla campaniformia and Böhm sensilla were distinguished. No remarkable sexual differences in the types, numbers and distribution of sensilla were found on the antennae, except for the sensilla basiconica type II. The average number of sensilla basiconica type II on the antennae of the male beetle surpassed that on the antennae of the female beetle (3562 and 108 pegs, respectively). It is suggested that this type of sensilla on the male beetles antennae is responsible for the reception of the sex pheromone produced by the female beetle.     

双斑长跗萤叶甲触角感器的扫描电镜观察

利用扫描电镜观察了双斑长跗萤叶甲Monolepta hieroglyphica(Motschulsky)成虫触角及其感器的形态与分布。结果表明:双斑长跗萤叶甲成虫触角为线状,由柄节、梗节和鞭节组成,鞭节有9节,其中,雄虫的触角比雌虫长;感器类型有毛形感器(1型、2型和3型)、刺形感器、锥形感器(1型和2型)、腔锥形感器、Bhm氏鬃毛、钟形感器共9种。雌雄成虫触角感器类型无差异,但雄虫触角上的感器分布要比雌虫的稠密。     

Antennal sensilla of the ground beetle Bembidion lampros Hbst (Coleoptera, Carabidae)

Antennal sensilla typology, number and distribution pattern were studied in the ground beetle Bembidion lampros Hbst (Coleoptera, Carabidae) using scanning electron microscopy. The 1.6–1.8 mm long filiform antennae of both sexes consist of the scape, pedicel and of the flagellum composed of nine flagellomeres. In both sexes, three types of sensilla chaetica, two types of sensilla trichodea, five types of sensilla basiconica, one type of sensilla coeloconica, one type of sensilla campaniformia and Böhm sensilla were distinguished. The possible function of the sensilla was discussed and three types of sensilla were considered as olfactory, sensilla trichodea type 2 and sensilla basiconica types 1 and 2. Olfactory sensilla occupy dorsal and/or ventral areas of the flagellomeres and occur sparsely (sensilla basiconica type 1) or not at all (sensilla basiconica type 2 and sensilla trichodea type 2) outside these areas. No remarkable sexual differences in the types, numbers and distribution of antennal sensilla were found.     

Ultrastructure of the antennal sensilla of the mayfly Baetis rhodani (Pictet) (Ephemeroptera : Baetidae)

The distribution and fine morphology of antennal sensilla of nymphal and adult mayfly, Baetis rhodani (Ephemeroptera : Baetidae), were examined. In the nymph, various kinds of sensilla (chaetica, basiconica, coeloconica and cuticular pits) are differently arranged on the antennal segments, whereas sensilla campaniformia delimit the distal border of the pedicel. A peculiar kind of sensillum basiconicum, named flat-tipped sensillum, is present along the entire antenna, even though in the flagellum it has a regular arrangement between the cuticular lobes that delimit the distal border of each article. In the subimago the scape and pedicel are profusely covered with microtrichia and scattered sensilla trichodea, whereas the flagellum shows cuticular ribs. Sensilla coeloconica are present along the ventral side of the flagellum. In the imago, the antenna is completely decorated with scales among which sensilla trichodea and sensilla coeloconica occasionally occur. As in the nymph, adult mayflies have a ring of sensilla campaniformia along the distal border of the pedicel. When compared with nymphal antennae, those of adults have fewer types of sensilla, presumably in relation to the short, non-feeding terrestrial life.     

Antennal sense organs of the cockroach, Leucophaea maderae

Adult and nymphal antennae of the cockroach, Leucophaea maderae, contain nine or more different morphological types of sense organs. There is no outwardly apparent sexual dimorphism in adult antennae. Nymphs are dificient in gross numbers of sensilla. Sense organs are classified morphologically by their similarity to known types of sensila and are assigned functions on this basis and preliminary electrophysiological data: Sensilla chaetica (A), thick-walled mechanoreceptive hairs in groups on the antennal base; S. chaetica (B), thick-walled setae which are tactile and probably chemoreceptive, occurring in the antennal base and flagellum; S. trichodea (A), thin-walled chemoreceptive hairs of the flagellum; S. trichodea (B), minute hairs on the scape and pedicel; S. basiconica, thin-walled chemoreceptive pegs, and S. coeloconica (?pit-pegs”?) of the flagellum; S. campaniformia and scolopidia, mechanoreceptors in the base and flagellum; plus Johnston's organ and/or connective chrodotonal organs in the pedicel. Calculations based on absolute counts of sensilla and their known innervation yield an estimate of about 3.3 × 10⁴ sensilla and 10⁵ cells per antenna.     

拉步甲成虫触角感器的扫描电镜观察

利用扫描电子显微镜,观察了拉步甲Carabus lafossei成虫触角感器的类型、数量和分布规律。结果表明:拉步甲触角表面存在7类、12种感器类型,包括3种毛形感器(Sensilla trichodea,ST)、3种刺形感器(Sensilla chaetica,SCh)、2种锥形感器(Sensilla basiconca,SB)、Bhm氏鬃毛(Bhm bristles,BB)、腔锥形感器(Sensilla coeloconica,SCo)、腔形感器(Sensilla cavity,SCa)和钟形感器(Sensilla campaniformia,SCam),感器类型在雌、雄个体间无差异;雌、雄个体各节触角的感器数量和分布不均匀。研究结果为今后开展电生理学和行为生态学研究打下了基础。