温度对新出现的橄榄果病原体 Colletotrichum fioriniae 的体外发芽和生长的影响。

IF 3.6 4区 生物学 Q2 ENVIRONMENTAL SCIENCES
Federico Brugneti, Luca Rossini, Mounira Inas Drais, Silvia Turco, Angelo Mazzaglia
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引用次数: 0

摘要

由不同 Colletotrichum 种类诱发的橄榄炭疽病会造成果实产量和油质的巨大损失。作为橄榄炭疽病的病原菌,Colletotrichum fioriniae(Colletotrichum acutatum复合菌种)在意大利的发病率越来越高,这促使人们对其生物学、生态学以及温度等环境因素进行新的研究。我们在受控实验室条件下对来自拉齐奥地区(意大利中部)不同采样点的五个分离株进行了研究,目的是更好地了解分离株之间热发育的差异,并为将来建立一个能够描述病原体生命周期关键环节的数学模型奠定基础。在七个不同的恒定温度(5、10、15、20、25、30 和 35°C)和固定相对湿度(100% RH)条件下,对菌丝生长率和分生孢子萌发率进行了评估。对所获得的数据集进行分析,以估算连接菌丝生长率和孢子萌发率与环境温度的数学函数参数。本研究提供的参数集是该物种生物学知识的关键一步,也是未来制定数学模型的基础,这些数学模型可能成为虫害综合防治框架中决策支持系统的核心。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Effect of temperature on in vitro germination and growth of Colletotrichum fioriniae, a new emerging pathogen of olive fruits

Effect of temperature on in vitro germination and growth of Colletotrichum fioriniae, a new emerging pathogen of olive fruits

Olive anthracnose induced by different Colletotrichum species causes dramatic losses of fruit yield and oil quality. The increasing incidence of Colletotrichum fioriniae (Colletotrichum acutatum species complex) as causal agent of olive anthracnose in Italy, is endorsing new studies on its biology, ecology, and environmental factors such as temperature. Five isolates from different sampling sites in Lazio region (Central Italy) were studied under controlled laboratory conditions aiming to better understand the differences of thermal development among the isolates and to lay the foundations of a future mathematical model able to describe the key aspects of the pathogen's life cycle. The mycelial growth rate and the conidial germination rate were assessed at seven different constant temperatures (5, 10, 15, 20, 25, 30, and 35°C) and fixed relative humidity (100% RH). The obtained dataset was analysed to estimate the parameters of mathematical functions that connect the mycelial growth rate and the spore germination with the environmental temperature. The parameters set provided as the result of this study constitute a key step forward in the biological knowledge of the species and the basis for future formulations of mathematical models that might be the core of decision support systems in an integrated pest management framework.

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来源期刊
Environmental Microbiology Reports
Environmental Microbiology Reports ENVIRONMENTAL SCIENCES-MICROBIOLOGY
CiteScore
6.00
自引率
3.00%
发文量
91
审稿时长
3.0 months
期刊介绍: The journal is identical in scope to Environmental Microbiology, shares the same editorial team and submission site, and will apply the same high level acceptance criteria. The two journals will be mutually supportive and evolve side-by-side. Environmental Microbiology Reports provides a high profile vehicle for publication of the most innovative, original and rigorous research in the field. The scope of the Journal encompasses the diversity of current research on microbial processes in the environment, microbial communities, interactions and evolution and includes, but is not limited to, the following: the structure, activities and communal behaviour of microbial communities microbial community genetics and evolutionary processes microbial symbioses, microbial interactions and interactions with plants, animals and abiotic factors microbes in the tree of life, microbial diversification and evolution population biology and clonal structure microbial metabolic and structural diversity microbial physiology, growth and survival microbes and surfaces, adhesion and biofouling responses to environmental signals and stress factors modelling and theory development pollution microbiology extremophiles and life in extreme and unusual little-explored habitats element cycles and biogeochemical processes, primary and secondary production microbes in a changing world, microbially-influenced global changes evolution and diversity of archaeal and bacterial viruses new technological developments in microbial ecology and evolution, in particular for the study of activities of microbial communities, non-culturable microorganisms and emerging pathogens.
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