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Effects of L-arginine on Nitric Oxide Synthesis and Larval Metamorphosis of Mytilus coruscus.

ABSTRACT: To investigate the regulatory functions of L-arginine and nitric oxide (NO) on Mytilus coruscus metamorphosis, M. coruscus larvae were exposed to an inhibitor of nitric oxide synthase (NOS), aminoguanidine hemisulfate (AGH), and a substrate for NO synthesis, L-arginine. We observed that NO levels showed a significant increase, and this trend continued with L-arginine treatment. When NOS activity was inhibited, the larvae could not synthesize NO, and metamorphosis was not inhibited even in the presence of L-arginine. On transfecting pediveliger larvae with NOS siRNA followed by L-arginine exposure, we found that the larvae did not produce NO and that the larval metamorphosis rate was significantly increased, suggesting that L-arginine regulates M. coruscus larval metamorphosis by promoting NO synthesis. Our findings improve our understanding of the effects of marine environmental factors on larval metamorphosis of mollusks.

SUBMITTER: Zhu YT

PROVIDER: S-EPMC9957169 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

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Effects of L-arginine on Nitric Oxide Synthesis and Larval Metamorphosis of Mytilus coruscus.

Zhu You-Ting YT Liang Lin-Li LL Liu Tian-Tian TT Liang Xiao X Yang Jin-Long JL

Genes 20230209 2

To investigate the regulatory functions of L-arginine and nitric oxide (NO) on Mytilus coruscus metamorphosis, M. coruscus larvae were exposed to an inhibitor of nitric oxide synthase (NOS), aminoguanidine hemisulfate (AGH), and a substrate for NO synthesis, L-arginine. We observed that NO levels showed a significant increase, and this trend continued with L-arginine treatment. When NOS activity was inhibited, the larvae could not synthesize NO, and metamorphosis was not inhibited ...[more]

PMID: 36833378

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