Secondary metabolites of Siberian phytopathogenic fungi of the genus Corinectria Gonzalez & Chaverri and their phytotoxicity

IF 2.2 4区农林科学 Q2 PLANT SCIENCES Journal of Plant Pathology Pub Date : 2024-06-18 DOI:10.1007/s42161-024-01619-x

Tatyana V. Antipova, Valentina P. Zhelifonova, Yulia A. Litovka, Boris P. Baskunov, Alexander E. Noskov, Igor N. Pavlov

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Abstract

Ascomycete fungi isolated in Central Siberia from canker lesions of Abies sibirica Ledeb. were assigned to the genus Corinectria Gonzalez & Chaverri. Our earlier research has shown four Corinectria Siberian strains to be significantly different genetically from the known Corinectria spp. This work investigated the secondary metabolites of 23 morphologically similar Corinectria Siberian strains and their phytotoxicity. The strains were divided into two types by their morphological and cultural traits, MCT1 and MCT2. The MCT1 strains synthesized the meroterpenoids ilicicolins A and B, ilicicolin A epoxide and chlorocylindrocarpol; the MCT2 strains produced ilicicolins C, D (ascochlorin), F and ascofuranol. The phytotoxicity of the Corinectria strains showed a significant heterogeneity to Picea obovata seeds and was exhibited by 31% of the MCT1 strains and 50% of the МСТ2 strains. The more phytotoxic strains had an inhibitory effect on A. sibirica calluses. Ilicicolins C, D, and F synthesized by the MCT2 strains significantly inhibited the growth processes of both A. sibirica seedlings and Pinus sibirica Du Tour saplings.

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西伯利亚病原真菌 Corinectria Gonzalez & Chaverri 属的次级代谢产物及其植物毒性

在西伯利亚中部从西伯利亚冷杉（Abies sibirica Ledeb.）腐烂病害中分离出的子囊真菌被归入 Corinectria Gonzalez & Chaverri 属。我们早先的研究表明，西伯利亚矢车菊属的四种菌株与已知的矢车菊属菌株在基因上有显著差异。本研究调查了 23 种形态相似的西伯利亚矢车菊属菌株的次级代谢产物及其植物毒性。根据菌株的形态和培养特性，将其分为 MCT1 和 MCT2 两种类型。MCT1 菌株能合成丝核菌素 A 和 B、丝核菌素 A 环氧化物和氯代吲哚carpol；MCT2 菌株能产生丝核菌素 C、D（ascochlorin）、F 和 ascofuranol。Corinectria 菌株对红豆杉种子的植物毒性表现出显著的异质性，31% 的 MCT1 菌株和 50% 的 МСТ2 菌株表现出这种毒性。植物毒性较强的菌株对西伯利亚蓟马胼胝体有抑制作用。由 MCT2 菌株合成的 Ilicicolins C、D 和 F 能显著抑制西伯利亚红松幼苗和 Du Tour 红松幼苗的生长过程。

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来源期刊

Journal of Plant Pathology 生物-植物科学

CiteScore

3.10

自引率

4.50%

发文量

218

审稿时长

6-12 weeks

期刊介绍： The Journal of Plant Pathology (JPP or JPPY) is the main publication of the Italian Society of Plant Pathology (SiPAV), and publishes original contributions in the form of full-length papers, short communications, disease notes, and review articles on mycology, bacteriology, virology, phytoplasmatology, physiological plant pathology, plant-pathogeninteractions, post-harvest diseases, non-infectious diseases, and plant protection. In vivo results are required for plant protection submissions. Varietal trials for disease resistance and gene mapping are not published in the journal unless such findings are already employed in the context of strategic approaches for disease management. However, studies identifying actual genes involved in virulence are pertinent to thescope of the Journal and may be submitted. The journal highlights particularly timely or novel contributions in its Editors’ choice section, to appear at the beginning of each volume. Surveys for diseases or pathogens should be submitted as "Short communications".