STUDY OF EMBRYONIC STAGES AND METAMORPHOSIS IN THE JUNGLE FROG (RANA MACROCNEMIS PSEUDODALMATINA) IN GOLESTAN PROVINCE (MINUDASHT CITY)

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PESARAKLOU A.R.; GHAREZI A.; GHOLI KAMI H.

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Journal: RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE" Year:2008 | Volume:35 | Issue:6 Page(s): 209-222

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Title

STUDY OF EMBRYONIC STAGES AND METAMORPHOSIS IN THE JUNGLE FROG (RANA MACROCNEMIS PSEUDODALMATINA) IN GOLESTAN PROVINCE (MINUDASHT CITY)

Author(s)

PESARAKLOU A.R. | GHAREZI A. | GHOLI KAMI H. | Issue Writer Certificate

Keywords

FOREST FROGQ3

MINUDASHTQ3

METAMORPHOSISQ3

AQUARIUM CONDITIONSQ3

EMBRYO STAGES AND LARVALQ3

Abstract

Regarding the importance of Amphibian in biological studies, In this article, we studied embryonic stages of Rana macrocnemis psudodamatina from fertilized egg to the end of larval METAMORPHOSIS in AQUARIUM CONDITIONS. In order to do this task the fertilized eggs were collected from their natural habitat and transferred to an aquarium in the laboratory. Afterwards, every few hours some samples were taken from the aquarium and fixed for morphological characteristics to identify their developmental stage by the aid of a stereomicroscope. In summery, three hours after transferring the embryos were at two-cell stage. Four hours after this the samples were observed as four-cell embryos. Five hours later, the embryos were at the stage of gastrulation and six hours after the beginning of gastrulation the embryos were at the early neurolation. Eight hours after that, neural folds were closed and embryos started to elongate. Nine hours after the beginning of appearance the tail bud, olfactory pits in the region tadpole’s head were distinguishable. On the fourth day, tail erected and started to take a position alongside the body length which continued during the fifth day as well. External gills could be seen on the day of six. Sampling which were performed at 10:30 of the eighth day showed that the External gills have been degenerated. During the period of nine to 16th day, tadpoles were just growing and their body size increased without any discernible morphological changes. At late 16th day two hind limb buds began to appear which completed their development until 22nd day of study. Formation forelimb began on 25th day and completed its growth on 35th day. Simultaneously degeneration of tail became clearer on the 73rd day. Up to this stag the samples appeared as juvenile frogs without any tail. In general, these stages lasted almost 73 days.

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APA: Copy

PESARAKLOU, A.R., GHAREZI, A., & GHOLI KAMI, H.. (2008). STUDY OF EMBRYONIC STAGES AND METAMORPHOSIS IN THE JUNGLE FROG (RANA MACROCNEMIS PSEUDODALMATINA) IN GOLESTAN PROVINCE (MINUDASHT CITY). RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE", 35(6), 209-222. SID. https://sid.ir/paper/55936/en

Vancouver: Copy

PESARAKLOU A.R., GHAREZI A., GHOLI KAMI H.. STUDY OF EMBRYONIC STAGES AND METAMORPHOSIS IN THE JUNGLE FROG (RANA MACROCNEMIS PSEUDODALMATINA) IN GOLESTAN PROVINCE (MINUDASHT CITY). RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE"[Internet]. 2008;35(6):209-222. Available from: https://sid.ir/paper/55936/en

IEEE: Copy

A.R. PESARAKLOU, A. GHAREZI, and H. GHOLI KAMI, “STUDY OF EMBRYONIC STAGES AND METAMORPHOSIS IN THE JUNGLE FROG (RANA MACROCNEMIS PSEUDODALMATINA) IN GOLESTAN PROVINCE (MINUDASHT CITY),” RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE", vol. 35, no. 6, pp. 209–222, 2008, [Online]. Available: https://sid.ir/paper/55936/en

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