A STUDY ON ULTRASTRUCTURAL ASPECTS OF SEED DORMANCY IN WILD OATS
Publish place: Botanical Journal of Iran، Vol: 4، Issue: 1
Publish Year: 1382
Type: Journal paper
Language: English
View: 247
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Document National Code:
JR_ROST-4-1_001
Index date: 24 October 2022
A STUDY ON ULTRASTRUCTURAL ASPECTS OF SEED DORMANCY IN WILD OATS abstract
The structural differences between dormant and nondormant seeds of wild oats (Avena ludoviciana Durieu) were studied by light and transmission electron microscopy. Radial elongation of scutellum epithelial cells were observed in nondormant seeds after imbibition, compared with dormant seeds in which cells were completely compressed. Ultrastructural differences for example, dilution of cytoplasm, digestion of lipid and aleurone grains, enlarged endoplasmic reticulum, increase and assembly of polysomes and mitochondria, presence of a big vacuole were observed in nondormant seeds. Electron microscopy did not reveal such changes in dormant seeds. Nevertheless a lot of spherosomes, aleurone grains and some small vacuole were observed in the cytoplasm.
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A STUDY ON ULTRASTRUCTURAL ASPECTS OF SEED DORMANCY IN WILD OATS authors
حمیرا سلیمی
Plant Pests & Diseases Research Institute, P. O. Box ۱۴۵۴, Tehran ۱۹۳۹۵, Iran
نوح شهرآیین
Plant Pests & Diseases Research Institute, P. O. Box ۱۴۵۴, Tehran ۱۹۳۹۵, Iran
مه لقا قربانلی
Department of Biology, Tarbiat Moalem University Tehran, Iran
بهروز شاهسون بهبودی
Department of Biology, Tehran University, Tehran, Iran
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