Ultrastructure of the male accessory glands of sesarmid crab, Parasesarma plicatum (Latreille, 1803)
نویسندگان
چکیده
منابع مشابه
Ultrastructure of male accessory glands in the scorpionfly Sinopanorpa tincta (Navás, 1931) (Mecoptera: Panorpidae).
The ultrastructure of male reproductive accessory glands was investigated in the scorpionfly Sinopanorpa tincta (Navás, 1931) (Mecoptera: Panorpidae) using light and transmission electron microscopy. The male accessory glands comprise one pair of mesodermal glands (mesadenia) and six pairs of ectodermal glands (ectadenia). The former opens into the vasa deferentia and the latter into the ejacul...
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Reproduction is certainly the main mechanism by which to guarantee species continuity, being a result of adaptative processes determined by evolutionary pressures to improve offspring survival (Hartnoll & Gould 1988). Breeding period is defined as the time interval in which ovigerous females may be found. According to Sastry (1983), it is the result of the complex interactions of endogenous and...
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Studies focusing regeneration are incomplete without considering autotomy (Maginnis 2006). According to this author, autotomy is the process of limb loss, allowing multiple benefits to an organism (the most prevalent is predator avoidance), commonly improving the immediate survivorship. Factors such as contact with toxins and pesticides, long limbs stuck in crevasses during foraging, crabs harv...
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ژورنال
عنوان ژورنال: Journal of Microscopy and Ultrastructure
سال: 2017
ISSN: 2213-879X
DOI: 10.1016/j.jmau.2016.07.001