Dinoflagellate Amphiesmal Dynamics: Cell Wall Deposition with Ecdysis and Cellular Growth

Dinoflagellates are a major aquatic protist group with amphiesma, multiple cortical membranous “cell wall” layers that contain large circum-cortical alveolar sacs (AVs). AVs undergo extensive remodeling during cell- and life-cycle transitions, including ecdysal cysts (ECs) and resting cysts that are...

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Main Authors: Alvin Chun Man Kwok, Wai Sun Chan, Joseph Tin Yum Wong
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Marine Drugs
Subjects:
Online Access:https://www.mdpi.com/1660-3397/21/2/70
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author Alvin Chun Man Kwok
Wai Sun Chan
Joseph Tin Yum Wong
author_facet Alvin Chun Man Kwok
Wai Sun Chan
Joseph Tin Yum Wong
author_sort Alvin Chun Man Kwok
collection DOAJ
description Dinoflagellates are a major aquatic protist group with amphiesma, multiple cortical membranous “cell wall” layers that contain large circum-cortical alveolar sacs (AVs). AVs undergo extensive remodeling during cell- and life-cycle transitions, including ecdysal cysts (ECs) and resting cysts that are important in some harmful algal bloom initiation–termination. AVs are large cortical vesicular compartments, within which are elaborate cellulosic thecal plates (CTPs), in thecate species, and the pellicular layer (PL). AV-CTPs provide cellular mechanical protection and are targets of vesicular transport that are replaced during EC-swarmer cell transition, or with increased deposition during the cellular growth cycle. AV-PL exhibits dynamical-replacement with vesicular trafficking that are orchestrated with amphiesmal chlortetracycline-labeled Ca<sup>2+</sup> stores signaling, integrating cellular growth with different modes of cell division cycle/progression. We reviewed the dynamics of amphiesma during different cell division cycle modes and life cycle stages, and its multifaceted regulations, focusing on the regulatory and functional readouts, including the coral–zooxanthellae interactions.
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spelling doaj.art-0251b78982f945a4bb7849699dd85ec72023-11-16T21:47:24ZengMDPI AGMarine Drugs1660-33972023-01-012127010.3390/md21020070Dinoflagellate Amphiesmal Dynamics: Cell Wall Deposition with Ecdysis and Cellular GrowthAlvin Chun Man Kwok0Wai Sun Chan1Joseph Tin Yum Wong2Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, ChinaDivision of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, ChinaDivision of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, ChinaDinoflagellates are a major aquatic protist group with amphiesma, multiple cortical membranous “cell wall” layers that contain large circum-cortical alveolar sacs (AVs). AVs undergo extensive remodeling during cell- and life-cycle transitions, including ecdysal cysts (ECs) and resting cysts that are important in some harmful algal bloom initiation–termination. AVs are large cortical vesicular compartments, within which are elaborate cellulosic thecal plates (CTPs), in thecate species, and the pellicular layer (PL). AV-CTPs provide cellular mechanical protection and are targets of vesicular transport that are replaced during EC-swarmer cell transition, or with increased deposition during the cellular growth cycle. AV-PL exhibits dynamical-replacement with vesicular trafficking that are orchestrated with amphiesmal chlortetracycline-labeled Ca<sup>2+</sup> stores signaling, integrating cellular growth with different modes of cell division cycle/progression. We reviewed the dynamics of amphiesma during different cell division cycle modes and life cycle stages, and its multifaceted regulations, focusing on the regulatory and functional readouts, including the coral–zooxanthellae interactions.https://www.mdpi.com/1660-3397/21/2/70cell wallharmful algal bloomscystdinoflagellatesamphiesmacellulose
spellingShingle Alvin Chun Man Kwok
Wai Sun Chan
Joseph Tin Yum Wong
Dinoflagellate Amphiesmal Dynamics: Cell Wall Deposition with Ecdysis and Cellular Growth
Marine Drugs
cell wall
harmful algal blooms
cyst
dinoflagellates
amphiesma
cellulose
title Dinoflagellate Amphiesmal Dynamics: Cell Wall Deposition with Ecdysis and Cellular Growth
title_full Dinoflagellate Amphiesmal Dynamics: Cell Wall Deposition with Ecdysis and Cellular Growth
title_fullStr Dinoflagellate Amphiesmal Dynamics: Cell Wall Deposition with Ecdysis and Cellular Growth
title_full_unstemmed Dinoflagellate Amphiesmal Dynamics: Cell Wall Deposition with Ecdysis and Cellular Growth
title_short Dinoflagellate Amphiesmal Dynamics: Cell Wall Deposition with Ecdysis and Cellular Growth
title_sort dinoflagellate amphiesmal dynamics cell wall deposition with ecdysis and cellular growth
topic cell wall
harmful algal blooms
cyst
dinoflagellates
amphiesma
cellulose
url https://www.mdpi.com/1660-3397/21/2/70
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AT waisunchan dinoflagellateamphiesmaldynamicscellwalldepositionwithecdysisandcellulargrowth
AT josephtinyumwong dinoflagellateamphiesmaldynamicscellwalldepositionwithecdysisandcellulargrowth