Diterpenoids from the brown alga Dictyota dichotoma with nematicidal activity against the plant parasitic nematode Aphelenchoides besseyi

IF 3.4 2区生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Phytochemistry Pub Date : 2025-09-27 DOI:10.1016/j.phytochem.2025.114691

Manami Iida , Tatsuo Nehira , Aki Kato , Shigeru Hoshino , Hisashi Ômura , Shinji Ohta

引用次数: 0

Abstract

Three previously undescribed diterpenoids, designated amijial (1), dictyoepoxyperoxide (2), and hydroperoxyacetyldictyolal (3), were isolated from the brown alga Dictyota dichotoma along with eight known diterpenoids. Structural analysis revealed that 1 features a unique xenicane-related skeleton with a cyclic hemiacetal structure. The nematicidal activity of the isolated compounds was evaluated against the plant-parasitic nematode Aphelenchoides besseyi. Compounds bearing the α,β-unsaturated 1,4-dialdehyde structural motif exhibited higher activity.

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褐藻Dictyota dichotoma二萜对植物寄生线虫的杀线虫活性研究。

从褐藻Dictyota dichotoma中分离出三种先前未被描述的二萜类化合物，分别为amijiial(1)、dictyo环氧过氧化物(2)和hydroperoxyacetyldictyolal(3)，以及八种已知的二萜类化合物。结构分析显示，1具有独特的环半缩结构的xennicane相关骨架。研究了分离得到的化合物对植物寄生线虫的杀线虫活性。含有α，β-不饱和1,4-二醛结构基序的化合物具有较高的活性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Phytochemistry 生物-植物科学

CiteScore

6.40

自引率

7.90%

发文量

443

审稿时长

39 days

期刊介绍： Phytochemistry is a leading international journal publishing studies of plant chemistry, biochemistry, molecular biology and genetics, structure and bioactivities of phytochemicals, including ''-omics'' and bioinformatics/computational biology approaches. Phytochemistry is a primary source for papers dealing with phytochemicals, especially reports concerning their biosynthesis, regulation, and biological properties both in planta and as bioactive principles. Articles are published online as soon as possible as Articles-in-Press and in 12 volumes per year. Occasional topic-focussed special issues are published composed of papers from invited authors.