MUSCLE SUCCINOXIDASE IN THE AMERICAN COCKROACH

The succinoxidase system in oyster muscle.

The importance of the role which the C4-dicarboxylic acids play in tissue respiration was pointed out by Szent-Gyorgyi in 1937. It is now known that succinic dehydrogenase is one of the few dehydrogenases which react directly with the cytochromes, and the 'succinoxidase' system has been investigated in a large number of vertebrate tissues. The action of succinate on the oxygen uptake of a few i...

The American Cockroach Regeneration

Tachykinin stimulates α-amylase, protease and lipase activities in the midgut of the American cockroach, Periplaneta americana (Blattodea: Blattidae)

       در این تحقیق به بررسی اثر تاکیکینین بر روی فعالیت آلفا آمیلاز، پروتئاز و لیپاز در معده میانی سوسری امریکایی (L.) Periplaneta americana پرداخته شد. فعالیت ایمنوهیستوشیمیایی سلول‌های معده میانی (بخش های جلویی، میانی و عقبی) که تاکیکینین ترشح می‌کردند مورد تایید قرار گرفت. چهار هفته گرسنگی، تعداد سلول هایی را که عکس العمل ایمنوهیستوشیمیایی مقابل آنتی‌بادی تاکیکینین داشتند (Tachykinin-ir cel...

Tryptophan metabolite excretion by the American cockroach.

Abstrac t -1 . Three fluorescing materials have been discovered in excreta from the American cockroach, Periplaneta americana (L.), and found to increase in concentration as dietary nitrogen increases. 2. These compounds have been identified as kynurenic, xanthurenic and 8-hydroxyquinaldic acids. 3. Feeding cockroaches antibiotic eliminates 8-hydroxyquinaldic acid production, presumably by inhi...

odor-tracking performance in the American cockroach Periplaneta americana

Determining the location of a particular stimulus is often crucial to an animal’s survival. One way to determine the local distribution of an odor is to make simultaneous comparisons acrossmultiple sensors. If the sensors detect differences in the distribution of an odor in space, the animal can then steer toward the source. American cockroaches, Periplaneta americana, have 4 cm long antennae a...