Colletotrichum spaethianum causes leaf spot disease in Stemona japonica in the Guizhou province of China

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2025-04-01 DOI:10.1016/j.cropro.2025.107230

Rui Zhang , Chengqing Yang , Dengquan Liu , Zhen Su , Zhongshun Cai , Cheng Li

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引用次数: 0

Abstract

Stemona Radix plant belongs to the genus Stemona and the family Stemonaceae. It can be divided into Stemona sessilifolia (Miq.) Miq., Stemona japonica(Bl.) Miq., and Stemona tuberosa Lour. S. japonica is a perennial herb with spindle-shaped succulent tuber roots clustered underground and ascending from the upper part of the stem. S. japonica was first recorded in the "Famous Doctors Register". It has a long history of medicinal use in China and is commonly used in Traditional Chinese Medicine clinical medicine. It is sweet and bitter, with thick, fat, solid, and white color characteristics. This study aimed to isolate and identify the pathogen that causes the S. japonica leaf spot disease in Huangping County, Guizhou Province using pathogenicity tests, morphological characteristics, and phylogenetic analysis. In this study, a large number of reddish-brown spots were observed on S. japonica leaves collected from Huangping County, Kaili City, Guizhou Province. Over time, these spots gradually expanded to the entire leaf and eventually led to the death of the entire plant, greatly affecting the yield and quality of the S. japonica. In this study, Colletotrichum spaethianum was identified as a pathogen against S. japonica via morphological characterization; phylogenetic analysis using ITS region, GAPDH and ACT sequences; and pathogenicity tests. For the first time, S. japonica leaf spot was found to be caused by C. spaethianum in China.

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在中国的贵州省，炭疽病菌引起了水稻的叶斑病

山菖蒲属植物，属山菖蒲科。它可以分为无梗石竹（Miq.）。进行筛选。，日本Stemona japonica（Bl）进行筛选。，以及tuberosa Lour。粳稻是一种多年生草本植物，具有纺锤形多肉块茎根，在地下簇生，从茎的上部上升。在《名医名册》中首次记载了日本稻。它在中国有着悠久的药用历史，在中医临床医学中常用。它有甜有苦，具有厚、肥、实、白的色泽特点。本研究旨在通过致病性试验、形态特征和系统发育分析，分离鉴定贵州省黄平县的粳稻叶斑病病原菌。本研究在贵州省凯里市黄平县采集的粳稻叶片上观察到大量的红褐色斑点。随着时间的推移，这些斑点逐渐扩大到整个叶片，最终导致整个植株死亡，极大地影响了粳稻的产量和质量。本研究通过形态鉴定鉴定了炭疽病菌（Colletotrichum spaethianum）是一种侵染粳稻的病原菌；ITS区、GAPDH和ACT序列的系统发育分析；还有致病性测试。在国内首次发现粳稻叶斑病是由黄叶斑病引起的。

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来源期刊

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.