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桉蝙蛾幼虫触角及胸腹体表感器形态及分布特征

胡平 杨秀好 杨振德

胡平, 杨秀好, 杨振德. 桉蝙蛾幼虫触角及胸腹体表感器形态及分布特征[J]. 北京林业大学学报. doi: 10.12171/j.1000-1522.20210145
引用本文: 胡平, 杨秀好, 杨振德. 桉蝙蛾幼虫触角及胸腹体表感器形态及分布特征[J]. 北京林业大学学报. doi: 10.12171/j.1000-1522.20210145
Hu Ping, Yang Xiuhao, Yang Zhende. +Morphology and distribution of sensillum on antennal, thoracic and abdominal tegument of Endoclita signifier larva[J]. Journal of Beijing Forestry University. doi: 10.12171/j.1000-1522.20210145
Citation: Hu Ping, Yang Xiuhao, Yang Zhende. +Morphology and distribution of sensillum on antennal, thoracic and abdominal tegument of Endoclita signifier larva[J]. Journal of Beijing Forestry University. doi: 10.12171/j.1000-1522.20210145

桉蝙蛾幼虫触角及胸腹体表感器形态及分布特征

doi: 10.12171/j.1000-1522.20210145
基金项目: 国家自然科学基金青年科学基金项目(32001321),广西壮族自治区自然科学基金面上项目(2020JJA130068),广西壮族自治区科技基地和人才专项(2020AC19057)
详细信息
    作者简介:

    胡平,硕士生导师。研究方向:森林害虫防治。Email:hupingcs@163.com 地址:540003广西南宁市西乡塘区大学东路100号广西大学林学院

    责任作者:

    杨振德,博士生导师。研究方向:森林害虫防治。Email:dzyang68@126.com 地址:同上

  • 中图分类号: S763

+Morphology and distribution of sensillum on antennal, thoracic and abdominal tegument of Endoclita signifier larva

  • 摘要:   目的  基于感器形态、类型、数量、分布特征,探究桉蝙蛾幼虫触角及体表感器与其蛀道生活的适应性。  方法  利用扫描电镜观察桉蝙蛾4龄幼虫触角、胸部及腹部体表感器的形态特征并分类,结合测量、统计分析和等比例绘图,分析感器数量和分布特征。  结果  桉蝙蛾幼虫触角感器主要分布在鞭节末端,共有8对感器,分别是3对刺形感器、4对锥形感器和1对栓锥形感器,推测其感器类型能满足幼虫感受化学及机械刺激的需求。胸腹部体表的感器类型是Bohm’s鬃毛及刺形感器;其中刺形感器分3个亚型,基部至中部均为螺旋状;刺形感器Ⅱ型最独特,外壁具有刺状突起,推测其在幼虫的机械伸缩及防御上起作用。  结论  桉蝙蛾幼虫触角及体表感器类型与其蛀道生活相适应,该结果为桉蝙蛾幼虫寄主选择与适应研究提供基础。

     

  • 图  1  桉蝙蛾危害状、成虫及幼虫的形态特征

    a. 危害状,展示虫包;b. 危害状示虫口;c. 老熟12龄幼虫背面及侧面观;d. 危害状,展示蛀道;e. 雌雄成虫特征。a, insect package; b, entrance of wormhole; c, dorsal and lateral view of the 12th larvae; d, wormhole; e, characteristics of male and female adults.

    Figure  1.  Morphological characteristics of damage, adult and larva of E. signifier

    图  2  桉蝙蛾幼虫头部背面观及触角感器分布

    a. 桉蝙蛾幼虫头部侧面观;b. 幼虫触角感器分布图;c. 幼虫触角结构及刺形感器CⅠ的细节图;d. 刺形感器CⅡ的细节图;e. 锥形感器BⅠ细节图;f. 刺形感器CⅢ分布及细节图;g. 锥形感器BⅡ细节图;h. 触角锥形感器BⅢ分布及细节图;i. 栓锥形感器StⅠ。A. 触角;Mp. 下颚须;Scp. 柄节;Pe. 梗节;Fl. 鞭节;BⅠ. 锥形感器I亚型;BⅡ. 锥形感器Ⅱ亚型;BⅢ. 锥形感器Ⅲ亚型;CⅠ. 刺形感器Ⅰ亚型;CⅡ. 刺形感器Ⅱ亚型;CⅢ. 刺形感器Ⅲ亚型;StⅠ. 栓锥形感器StⅠ。a, lateral view of the head of Endoclita signifier larvae; b, sensilla distribution of larva antennal; c, larval antenna structure and sensilla chaetica CI; d, sensilla chaetica CⅡ; e, sensilla basiconca BI; f, sensilla distribution and sensilla chaetica CⅢ; g, sensilla basiconca BⅡ; h, sensilla distribution and sensilla basiconca BⅢ; i, sensilla styloconica StⅠ. A, antennae; MP, maxillary palp; SCP, scape; PE, pedicel; Fl, flagellum; BⅠ, sensilla basiconca subtype Ⅰ; BⅡ, sensilla basiconca subtype Ⅱ; BⅢ, sensilla basiconca subtype Ⅲ; CⅠ, sensilla chaetica subtype Ⅰ; CⅡ, sensilla chaetica subtype Ⅱ; CⅢ, sensilla chaetica subtype Ⅲ; StⅠ, sensilla styloconica.

    Figure  2.  Dorsal view of the head and the distribution of antennal sensilla of E. signifier larvae

    图  3  桉蝙蛾幼虫触角感器分布模式

    Figure  3.  Mode distribution of sensilla of E. signifier larval antenna

    图  4  桉蝙蛾幼虫胸部及腹部体表感器分布及形态

    a. 幼虫腹部腹面体节连接处;b. 腹部体节连接处侧面图;c. 腹足及周边感器;d. 一对腹足;e. 臀足;f. 后胸腹面(去掉胸足);g. 刺形感器I亚型;h. 刺形感器Ⅱ亚型;i. 前胸气门及胸部侧毛;j. 刺形感器Ⅲ亚型;k. Bohm’s鬃毛;l. 胸足背面及腹面观。图中CI. 刺形感器I亚型;CⅡ. 刺形感器Ⅱ亚型;CⅢ. 刺形感器Ⅲ亚型;B.b. Bohm’s鬃毛;Sp. 气门。a, joint of the ventral and ventral segments of the larval abdomen; b, lateral view of abdominal joint; c, abdominal pleopoda and its peripheral sensillum; d, abdominal pleopoda; e, pygypodia; f, segmental venter of metathorax (remove baenopoda); g, sensilla chaetica CI; h, sensilla chaetica CⅡ; i, the stomata and the lateral hair of prothorax; j, sensilla chaetica CⅢ; k, Bohm’s bristle; l, dorsal and ventral view of the baenopoda. CI, sensilla chaetica subtype I; CⅡ, sensilla chaetica subtype Ⅱ; CⅢ, sensilla chaetica subtype Ⅲ; B.b, Bohm’s bristle; Sp, spiracle.

    Figure  4.  Distribution and morphology of sensillum in the thorax and abdomen of tegumentary of E. signifier larvae

    图  5  桉蝙蛾幼虫胸部及腹部体表感器分布模式

    a. 胸部,a1、a2、a3分别为胸部腹面、侧面和背面观;b. 腹部,b1、b2、b3分别为腹部腹面、侧面和背面观(b1左侧无腹足,右侧带腹足),c. 臀足,d. 胸足。a, thorax, a1, a2 and a3 are the ventral, lateral and dorsal views of the thorax, respectively; b, abdomen, b1, b2 and b3 are the ventral, lateral and dorsal views of the abdomen, respectively, (left and right of b1 represent without and with abdominal foot); c. posterior pleopoda, d. baenopoda.

    Figure  5.  Mode distribution of sensillum in the thorax and abdomen of tegumentary of E. signifier larvae

    表  1  桉蝙蛾幼虫触角及体表感器统计

    Table  1.   Statistical table of the antennae and cuticula sensillum of E. signifier larvae

    位置
    Location
    感器类型
    Sensilla
    type
    长度
    Length /μm
    基座宽度
    Socket
    diameter /μm
    形态特征 Morphological characteristics
    外璧 External wall顶端 Tip基座 Socket
    触角
    Antennae
    CⅠ 325.17 ± 16.05 12.46 ± 0.50 基部1/5 ~ 3/5区域明显螺旋状
    Distinctly helical of basal
    1/5 to 3/5
    顶端尖锐无顶孔
    Sharp and without
    terminal pore
    基座紧实,微隆起
    Tiny raised and tight
    circular socket
    CⅡ 81.26 ± 2.13 7.38 ± 0.87 有明显的凹凸
    Obvious concave and convex
    顶端尖锐无顶孔
    Tip sharp and without
    terminal pore
    基座紧实,隆起
    Raised and tight
    circular socket
    CⅢ 66.12 ± 7.81 7.49 ± 0.27 表面光滑 Smooth surface 急剧变细变小
    Sharply become small
    and attenuation
    与St Ⅰ基部相连
    Connected with the
    base of St Ⅰ
    BⅠ 22.13 ± 1.74 4.90 ± 0.58 光滑无壁孔
    Smooth surface and without
    wall pore
    顶端圆润无顶孔
    Mellow and without
    terminal pore
    不明显 Not obvious
    BⅡ 37.27 ± 2.28 31.99 ± 3.06 外壁光滑,有多个壁孔
    Smooth external wall surface and with
    many wall pores
    顶端圆润无顶孔
    Mellow and without
    terminal pore
    不明显 Not obvious
    BⅢ 35.25 ± 0.87 25.97 ± 1.25 外壁光滑,有一圈状纹,纹上有壁孔
    Smooth external wall surface, with a circle
    shape stripe and with wall
    pore on stripe
    顶端圆润无顶孔
    Mellow and without
    terminal pore
    与CⅢ和StⅠ共同基部相连
    Connected with the common
    base of St Ⅰand CⅢ
    StⅠ基部
    StⅠ base
    8.08 ± 1.03 10.05 ± 0.33 外壁光滑无壁孔
    Smooth external wall surface and
    without wall pore
    顶端无顶孔,略微凸起
    Without terminal pore
    and tiny convex
    与CⅢ基部相连
    Connected with the
    base of CⅢ
    StⅠ端部
    StⅠ tip
    3.34 ± 0.33 3.73 ± 0.18
    体表
    Thoracic and
    abdominal
    tegument
    CⅠ 707.31 ± 90.23 54.88 ± 10.69 基部1/10至中部呈现较明显螺旋状
    Relative distinctly helical in basal
    1/10 to middle
    顶端尖锐无顶孔
    Sharp and without
    terminal pore
    基座宽松,微隆起
    Loose cicular socket and
    tiny raised
    CⅡ 993.75 + 71.24 75.00 ± 15.28 中部呈现微弱螺旋状条纹,带刺
    Weak helical stripe in middle
    and with thom
    顶端尖锐无顶孔
    Sharp and without
    terminal pore
    基座宽松,微隆起
    Loose circular socket
    and tiny raised
    CⅢ 1437.50 ± 536.71 56.25 ± 10.04 基部1/10至中部呈微弱螺旋状条纹
    Weak helical stripe in basal
    1/10 to middle
    顶端尖锐无顶孔
    Sharp and without
    terminal pore
    基座紧实
    Tight circular
    socket
    Bohm’s
    鬃毛
    B.b
    287.50 ± 60.25 24.50 ± 5.87 外壁光滑无壁孔
    Smooth external wall surface and with
    many wall pore
    顶端尖锐
    Sharp
    基座宽松
    Loose circular
    socket
    下载: 导出CSV
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  • 收稿日期:  2021-04-18
  • 修回日期:  2021-05-08
  • 网络出版日期:  2021-06-19

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