The regulatory role of arginine kinase during larval settlement of the bryozoan Bugula neritina

Larval attachment and metamorphosis, also collectively known as settlement, plays an important role in the life history of marine invertebrates with biphasic life cycle. Bugula neritina can settle on any substrate without substrate selection. This complex transformation usually involves an active se...

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Bibliographic Details
Published in:Marine biology 2018-03, Vol.165 (3), p.1-9, Article 52
Main Authors: Zhang, Yu, Yang, Xiao-Xue, Wong, Yue-Him, Qian, Pei-Yuan
Format: Article
Language:English
Subjects:
Arginine
Arginine kinase
Biomedical and Life Sciences
Bugula neritina
Bugulidae
Energy metabolism
Freshwater & Marine Ecology
Invertebrates
Kinases
Larvae
Larval development
Larval settlement
Life cycle
Life cycle engineering
Life cycles
Life history
Life Sciences
Marine & Freshwater Sciences
Marine biology
Marine invertebrates
Metabolism
Metamorphosis
Microbiology
Oceanography
Original Paper
Physiological aspects
Substrates
Swimming
Zoology
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Summary:Larval attachment and metamorphosis, also collectively known as settlement, plays an important role in the life history of marine invertebrates with biphasic life cycle. Bugula neritina can settle on any substrate without substrate selection. This complex transformation usually involves an active selection process, while the larval decision to settle is regulated by both exogenous and endogenous factors. This study focuses on the involvement of arginine kinase (AK), an important enzyme that regulates energy metabolism in marine invertebrates, during larval settlement of the bryozoan Bugula neritina. We reveal that AK was highly expressed in the swimming larvae of B. neritina , while its expression was down-regulated post-attachment. When treated with AK inhibitors, the larval settlement rate was significantly decreased. In addition, the immunostaining results indicated that AK was mainly localized to the neuro-muscular cord in swimming larvae. Overall, our results suggest the involvement of AK in regulating larval settlement of B. neritina .
ISSN:0025-3162
1432-1793
DOI:10.1007/s00227-018-3307-1