The athecate dinoflagellate genus Karlodinium (Kareniaceae: Dinophyceae) from Mexican coastal waters, with three new records for the eastern Pacific Ocean

IF 1.9 2区生物学 Q4 MICROBIOLOGY

European journal of protistology Pub Date : 2025-04-15 DOI:10.1016/j.ejop.2025.126150

Jovanny Arana-Garcia , Alexis Escarcega-Bata , David U. Hernández-Becerril , María Eugenia Zamudio-Resendiz

{"title":"The athecate dinoflagellate genus Karlodinium (Kareniaceae: Dinophyceae) from Mexican coastal waters, with three new records for the eastern Pacific Ocean","authors":"Jovanny Arana-Garcia , Alexis Escarcega-Bata , David U. Hernández-Becerril , María Eugenia Zamudio-Resendiz","doi":"10.1016/j.ejop.2025.126150","DOIUrl":null,"url":null,"abstract":"<div><div>The athecate dinoflagellate genus Karlodinium (family Kareniaceae) has a relatively high diversity and is known for its potential ichthyotoxicity in coastal marine environments. In this study, we report the occurrence of four species of Karlodinium in the Mexican Pacific: K. azanzae, K. cf. elegans, K. decipiens, and K. zhouanum. Three species (K. azanzae, K. decipiens, and K. zhouanum) were isolated from Acapulco Bay in March 2023, and one species (K. cf. elegans) was detected in fixed samples collected from the western coasts of Baja California in September 2020. The cell morphology was studied mainly by light microscopy and only K. cf. elegans was examined by scanning electron microscopy. Relevant morphological characters of all studied species were consistent with previous descriptions, and their morphological identification was confirmed by phylogenetic analysis of large subunit (LSU) rDNA sequences. The synonymy of K. jejuense and K. zhouanum was proposed based on a combination of morphological and molecular data.</div></div>","PeriodicalId":12042,"journal":{"name":"European journal of protistology","volume":"99 ","pages":"Article 126150"},"PeriodicalIF":1.9000,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European journal of protistology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0932473925000185","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MICROBIOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

The athecate dinoflagellate genus Karlodinium (family Kareniaceae) has a relatively high diversity and is known for its potential ichthyotoxicity in coastal marine environments. In this study, we report the occurrence of four species of Karlodinium in the Mexican Pacific: K. azanzae, K. cf. elegans, K. decipiens, and K. zhouanum. Three species (K. azanzae, K. decipiens, and K. zhouanum) were isolated from Acapulco Bay in March 2023, and one species (K. cf. elegans) was detected in fixed samples collected from the western coasts of Baja California in September 2020. The cell morphology was studied mainly by light microscopy and only K. cf. elegans was examined by scanning electron microscopy. Relevant morphological characters of all studied species were consistent with previous descriptions, and their morphological identification was confirmed by phylogenetic analysis of large subunit (LSU) rDNA sequences. The synonymy of K. jejuense and K. zhouanum was proposed based on a combination of morphological and molecular data.

查看原文本刊更多论文

墨西哥沿海的甲藻鞭毛属甲藻属（甲藻科：甲藻科），在东太平洋有三个新记录

甲藻甲藻属（Kareniaceae）具有相对较高的多样性，在沿海海洋环境中具有潜在的鱼毒性。在本研究中，我们报道了墨西哥太平洋四种卡洛迪菌的分布：卡洛迪菌属（K. azanzae）、卡洛迪菌属（K. cfelegans）、卡洛迪菌属（K. decipiens）和卡洛迪菌属（K. zhouanum）。2023年3月在阿卡普尔科湾分离到3种蜱虫（azanzae、decipiens和K. zhouanum）， 2020年9月在下加利福尼亚州西海岸采集的固定样本中分离到1种蜱虫（k.c.e elegans）。主要用光镜观察细胞形态，仅用扫描电镜观察秀丽隐杆线虫。所有研究物种的相关形态特征与前人的描述一致，并通过大亚单位rDNA序列的系统发育分析证实了它们的形态鉴定。根据形态和分子资料的综合分析，提出了jejuense与K. zhouanum的同义关系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

European journal of protistology 生物-微生物学

CiteScore

4.60

自引率

20.70%

发文量

审稿时长

14.6 weeks

期刊介绍： Articles deal with protists, unicellular organisms encountered free-living in various habitats or as parasites or used in basic research or applications. The European Journal of Protistology covers topics such as the structure and systematics of protists, their development, ecology, molecular biology and physiology. Beside publishing original articles the journal offers a forum for announcing scientific meetings. Reviews of recently published books are included as well. With its diversity of topics, the European Journal of Protistology is an essential source of information for every active protistologist and for biologists of various fields.