ON THE USE OF AMPULLATE GLAND SILKS BY WOLF SPIDERS (ARANEAE, LYCOSIDAE) FOR ATTACHING THE EGG SAC TO THE SPINNERETS AND A PROPOSAL FOR DEFINING NUBBINS AND TARTIPORES

ON THE USE OF AMPULLATE GLAND SILKS BY WOLF SPIDERS (ARANEAE, LYCOSIDAE) FOR ATTACHING THE EGG SAC TO THE SPINNERETS AND A PROPOSAL FOR DEFINING NUBBINS AND TARTIPORES
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关于狼蛛(蜘蛛纲、狼蛛科)使用壶腹腺丝将卵囊附着在喷丝头上的研究以及定义小刺和鞑靼的提案

DOI:
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
E. K. Tillinghast
E. K. Tillinghast
中科院分区:
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文献类型:
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作者:
M. Townley;E. K. Tillinghast

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摘要利用扫描电镜研究了狼蛛雌蛛卵囊附着于腹侧的方式。在四种豹蛛中,我们观察到从壶状腺栓中出现的丝纤维已经附着在卵囊的表面。更具体地说,初级(1°)和次级(2°)大壶腹(MaA)腺和1°和2°小壶腹(MiA)腺都为此目的提供纤维。2° MaA和2° MiA纤维的直径大于1° MaA和1° MiA纤维的直径,相应地,2°壶腹栓的宽度明显大于1°壶腹栓的宽度。在其他三个石松科属的种的成年雌性中也观察到较大的2°壶状突起。因此,2°壶腹腺,在蜘蛛类中只在蜕皮前期的幼蛛中起作用,不仅在成年雌性石松类(和其他几个科的成年雌性)中起作用,而且它们在卵囊附着中似乎比1°壶腹腺起更大的作用。本文还对其他几个科的成年雌虫的1°和2°壶腹孔进行了观察。表皮结构被称为小块和tartipore存在于一些纺纱领域的纺纱机。有人建议用一个标准来界定这些术语,即它们的不同来源,这与以前所适用的标准不同。
Abstract The means by which female wolf spiders attach an egg sac to their spinnerets was investigated using scanning electron microscopy. In four Pardosa species, we observed that silk fibers emerging from ampullate gland spigots had been affixed to the surface of the egg sac. More specifically, primary (1°) and secondary (2°) major ampullate (MaA) glands and 1° and 2° minor ampullate (MiA) glands all contributed fibers for this purpose. The diameters of the 2° MaA and 2° MiA fibers were greater than those of the 1° MaA and 1° MiA fibers and, correspondingly, the widths of the 2° ampullate spigots were clearly greater than those of the 1° ampullate spigots. Larger 2° ampullate spigots were also observed in adult females of species from three other lycosid genera. Thus, 2° ampullate glands, which in araneoids function only in juveniles during proecdysis, are not only functional in adult female lycosids (and adult females of several other families), but they appear to play a greater role than the 1° ampullate glands in egg sac attachment. Observations made on the 1° and 2° ampullate spigots of adult females from species belonging to several other families are also presented. Cuticular structures referred to as nubbins and tartipores are present in some spinning fields on spinnerets. A proposal is made for defining these terms by a criterion, namely their different origins, which differs from that applied previously.
DOI: 10.1098/rstb.1993.0046
发表时间: 1993
期刊: Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子: --
作者:
Townley,MA;Tillinghast,EK;Cherim,NA
通讯作者: Cherim,NA