Possible Modes of Salt Secretion in Avicennia marina in the Sinai :
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- Ish-Shalom-Gordon,Naomi
- Department of Life Sciences, Bar-Ilan University
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- Dubinsky,Zvy
- Department of Life Sciences, Bar-Ilan University
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抄録
Avicennia marina salt glands were studied by scanning electron microscopy (SEM), in order to relate their ultrastructure to the extracellular salt secretion process. It was found that a multi-phase asynchronous process regulates the salt secretion. In the light of the present study and previous evidence we describe two mechanisms of salt secretion. The first mechanism is a merocrine one, consisting of the formation of a vesicle that expands until it reaches a maximal size, when it bursts, releasing the salt solution. Later the burst vesicle disintegrates and a new one begins to form. The second suggested mechanism is an holocrine one and begins with the accumulation of the secreted solution in the subcuticular space. This results in the tearing of the cuticle and the re-lease of the salt solution as droplets. The first suggested mode of secretion operates regularly, while the second one takes place only occasionally.
収録刊行物
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- Plant and cell physiology
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Plant and cell physiology 31 (1), 27-32,
Japanese Society of Plant Physiologists
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詳細情報 詳細情報について
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- CRID
- 1540291245383785984
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- NII論文ID
- 110003719712
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- NII書誌ID
- AA0077511X
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- 本文言語コード
- en
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- データソース種別
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- NDL-Digital
- CiNii Articles