A comparison between the larval eyes of the dimly luminescent Keroplatus nipponicus and the brightly luminescent Arachnocampa luminosa (Diptera; Keroplatidae)
A comparison between the larval eyes of the dimly luminescent Keroplatus nipponicus and the brightly luminescent Arachnocampa luminosa (Diptera; Keroplatidae)
复制标题
发出微弱发光的 Keroplatus nipponicus 和发出明亮发光的 Arachnocampa luminosa（双翅目；Keroplatidae）幼虫眼睛的比较
DOI：
10.1002/bio.3293
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发表时间：
2017
期刊：
影响因子：
2.9
通讯作者：
Yamahama Yumi
中科院分区：
文献类型：
--
作者：
Meyer-Rochow V. Benno;Yamahama Yumi
弱蓝色发光真菌日本黑僵菌的幼虫在头的两侧都有一只黑色的小干眼，直径约25μm，平凸透镜。总体而言，12-14个视网膜细胞形成了直径高达8μm的中心融合带。纹状体的组成微绒毛，宽度约70纳米，大致垂直取向，这是偏振敏感性的要求。视网膜细胞中含有丰富的筛选色素颗粒，直径至少为1μm。与明亮发光的亮胸蛛的茎眼相比，Ofk.日本血吸虫体积较小，晶状体发育较差，纹状体体积较小，但具有较宽的微绒毛。尽管K.K的幼虫眼睛。可以预期，由于幼虫对光的反应具有行为反应，眼睛可能主要参与检测周围光线的水平，而不是像INA一样具有功能。发光体，也是为了响应附近同种生物的发光。
Larvae of the weakly blue‐luminescent fungus gnatKeroplatus nipponicuspossess on either side of their heads a small black stemmatal eye with a plano‐convex lens approximately 25 μm in diameter. In total, 12–14 retinula cells give rise to a centrally fused rhabdom of up to 8 μm in diameter. The rhabdom's constituent microvilli, approximately 70 nm in width, are roughly orthogonally oriented, a requirement for polarization sensitivity. Screening pigment granules are abundant in the retinula cells and measure at least 1 μm in diameter. In comparison with the stemmatal eye of the brightly luminescentArachnocampa luminosa, that ofK. nipponicusis considerably smaller with a poorer developed lens and a rhabdom that is less voluminous, but possesses wider microvilli. Although the larval eye ofK. nipponicuscan be expected to be functional, as the larvae react to light with a behavioural response, the eyes are probably mainly involved in the detection of ambient light levels and not, as inA. luminosa, also in responding to the luminescence of nearby conspecifics.