ULTRASTRUCTURAL STUDY OF THE STIGMATIC PAPILLAE IN DATURA STRAMONIUM

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GHASEMPOOR H.; ALIASGHARPOOR M.; MOVAFEGHI A.; REZA DADPOOR M.; NASIRIR SEMNANI SH.

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Journal: JOURNAL OF ANIMAL PHYSIOLOGY AND DEVELOPMENT (QUARTERLY JOURNAL OF BIOLOGICAL SCIENCES) Year:2009 | Volume:2 | Issue:3 (6) Page(s): 1-12

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Title

ULTRASTRUCTURAL STUDY OF THE STIGMATIC PAPILLAE IN DATURA STRAMONIUM

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Keywords

PAPILLAEQ3

WET PAPILLATEQ3

ULTRASTRUCTUREQ2

TRANSMISSION ELECTRON MICROSCOPYQ2

DATURA STRAMONIUMQ2

Abstract

Stigma of DATURA STRAMONIUM L. is bilobed, papillate and at maturity covered with a sticky exudates (wet papillate type).There is a little information on the stigmatic excretion of the mature stigma of DATURA STRAMONIUM. In the present study, the ontogenetic and ultrastructural aspects of PAPILLAE were investigated in four stages of stigma development, using TRANSMISSION ELECTRON MICROSCOPY. After gathering 5-75mm buds and in order to perform histological studies, different stages of fixation, blockage, and section were done by ultra-microtome. Fine sections stained with uranil acetate and citrate lead. In the course of development, PAPILLAE as well as underlying stigmatic cells showed secretory activity. Remarkable expansion of the endoplasmic reticulum and great modification of vacuolar contents during the ontogenesis of PAPILLAE suggested their effective role in the secretion process. Secretion began very early in 20-25 mm long buds. In this stage, electron dense droplets appeared in the cytoplasm and vacuoles. Furthermore, dense black aggregates were observed at the surface of the endoplasmic reticulum. These structures represented stigmatic secretion material. High electron density of secretory components gets recognizable following the post fixation with OsO4 by means of TRANSMISSION ELECTRON MICROSCOPY. In the mature stigma, droplets increased in number, coalesced and formed large lipid bodies under the cuticle and on the stigma surface. This procedure caused the cuticle to ruptures and become distance from the cell wall.

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APA: Copy

GHASEMPOOR, H., ALIASGHARPOOR, M., MOVAFEGHI, A., REZA DADPOOR, M., & NASIRIR SEMNANI, SH.. (2009). ULTRASTRUCTURAL STUDY OF THE STIGMATIC PAPILLAE IN DATURA STRAMONIUM. JOURNAL OF ANIMAL PHYSIOLOGY AND DEVELOPMENT (QUARTERLY JOURNAL OF BIOLOGICAL SCIENCES), 2(3 (6)), 1-12. SID. https://sid.ir/paper/191589/en

Vancouver: Copy

GHASEMPOOR H., ALIASGHARPOOR M., MOVAFEGHI A., REZA DADPOOR M., NASIRIR SEMNANI SH.. ULTRASTRUCTURAL STUDY OF THE STIGMATIC PAPILLAE IN DATURA STRAMONIUM. JOURNAL OF ANIMAL PHYSIOLOGY AND DEVELOPMENT (QUARTERLY JOURNAL OF BIOLOGICAL SCIENCES)[Internet]. 2009;2(3 (6)):1-12. Available from: https://sid.ir/paper/191589/en

IEEE: Copy

H. GHASEMPOOR, M. ALIASGHARPOOR, A. MOVAFEGHI, M. REZA DADPOOR, and SH. NASIRIR SEMNANI, “ULTRASTRUCTURAL STUDY OF THE STIGMATIC PAPILLAE IN DATURA STRAMONIUM,” JOURNAL OF ANIMAL PHYSIOLOGY AND DEVELOPMENT (QUARTERLY JOURNAL OF BIOLOGICAL SCIENCES), vol. 2, no. 3 (6), pp. 1–12, 2009, [Online]. Available: https://sid.ir/paper/191589/en

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