干旱区生态环境知识资源中心(Arid): Biodiversity of Pathogenic and Toxigenic Seed-Borne Mycoflora of Wheat in Egypt and Their Correlations with Weather Variables

Arid

DOI	10.3390/biology10101025
	Biodiversity of Pathogenic and Toxigenic Seed-Borne Mycoflora of Wheat in Egypt and Their Correlations with Weather Variables
	Shabana, Yasser M.; Rashad, Younes M.; Ghoneem, Khalid M.; Arafat, Nehal S.; Aseel, Dalia G.; Qi, Aiming; Richard, Benjamin; Fitt, Bruce D. L.
通讯作者	Rashad, YM (corresponding author), City Sci Res & Technol Applicat SRTA City, Plant Protect & Biomol Diag Dept, Arid Lands Cultivat Res Inst ALCRI, New Borg El Arab 21934, Egypt.
来源期刊	BIOLOGY-BASEL
EISSN	2079-7737
出版年	2021
卷号	10 期号:10
英文摘要	Simple Summary:& nbsp;Pathogenic fungi cause yield and quality losses and threaten food security. In this study, 198 samples of wheat grains, representing 20 Egyptian wheat cultivars, were collected from 25 wheat-growing governorates across Egypt, and screened for their seed-borne fungi. Twenty genera and 44 species of seed-borne fungi were identified, and their biodiversity indicators and evolutionary relationships were studied based upon similarities in their genetic characteristics. The most frequent fungi were Alternaria alternata and Cladosporium spp., while Tilletia tritici and Ustilago tritici were the most common smut fungi. The highest fungal diversity was recorded for Sinai governorate, while the greatest species richness was recorded in Qena and Sohag governorates. Correlations of the detected fungi with weather variables (temperature, relative humidity, precipitation, wind speed, or solar radiation) were investigated. Our results indicated that the relative humidity was the most influential weather variable, followed by temperature, solar radiation, wind speed, and precipitation, respectively. Despite this study being conducted on the wheat-growing areas in Egypt, our findings are useful for other wheat-growing countries that share the same climatic conditions. The correlation between a given fungus and the climatic variables can be useful in other ecosystems. Surveillance investigations for pathogenic and toxigenic fungi are important to refine our understanding of their epidemiology and help in predicting their outbreaks. During 2019, 198 samples of wheat grains were collected from 25 wheat-growing governorates in Egypt to detect and identify seed-borne mycoflora in vitro. Forty-four fungal species belonging to 20 genera were identified. Molecular data for these fungi were analyzed to construct a phylogenetic tree. Occurrence and biodiversity indicators were calculated. Two prevalent pathogens (average incidence > 40%) were Alternaria alternata and Cladosporium spp. Ustilago tritici was present in only seven of the 25 governorates, and less abundant than Tilletia tritici, the causal agent of stinking smut. Sinai governorate recorded the greatest species diversity, while the greatest species richness was in Qena and Sohag governorates. Canonical correspondence analysis of data for 20 fungal genera with temperature, relative humidity, precipitation, wind speed or solar radiation revealed that relative humidity was the most influential weather variable. It showed that occurrence and distribution of the 20 genera corresponded well with three out of four Egyptian climatic regions: Mediterranean, semi-arid, and arid. Knowing pathogen occurrence and distribution in Egypt is the first step to developing future disease management strategies to limit yield losses and improve food security. Despite this study being conducted on the wheat-growing areas in Egypt, our findings are useful for other wheat-growing countries that share the same climatic conditions. The correlation between a given fungus and the climatic variables can be useful in other ecosystems.
英文关键词	biodiversity climate change phylogeny seed-borne fungi Ustilago tritici Tilletia tritici wheat
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000713519300001
WOS关键词	RELATIVE-HUMIDITY ; FUSARIUM ; TEMPERATURE ; INFECTION ; VARIETIES ; TAXONOMY ; GROWTH ; GRAINS ; FUNGI ; SPP.
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368348
作者单位	[Shabana, Yasser M.; Arafat, Nehal S.] Mansoura Univ, Fac Agr, Plant Pathol Dept, Mansoura 35516, Egypt; [Rashad, Younes M.; Aseel, Dalia G.] City Sci Res & Technol Applicat SRTA City, Plant Protect & Biomol Diag Dept, Arid Lands Cultivat Res Inst ALCRI, New Borg El Arab 21934, Egypt; [Ghoneem, Khalid M.] Agr Res Ctr, Plant Pathol Res Inst, Dept Seed Pathol Res, Giza 12112, Egypt; [Qi, Aiming; Richard, Benjamin; Fitt, Bruce D. L.] Univ Hertfordshire, Sch Life & Med Sci, Hatfield AL10 9AB, Herts, England
推荐引用方式 GB/T 7714	Shabana, Yasser M.,Rashad, Younes M.,Ghoneem, Khalid M.,et al. Biodiversity of Pathogenic and Toxigenic Seed-Borne Mycoflora of Wheat in Egypt and Their Correlations with Weather Variables[J],2021,10(10).
APA	Shabana, Yasser M..,Rashad, Younes M..,Ghoneem, Khalid M..,Arafat, Nehal S..,Aseel, Dalia G..,...&Fitt, Bruce D. L..(2021).Biodiversity of Pathogenic and Toxigenic Seed-Borne Mycoflora of Wheat in Egypt and Their Correlations with Weather Variables.BIOLOGY-BASEL,10(10).
MLA	Shabana, Yasser M.,et al."Biodiversity of Pathogenic and Toxigenic Seed-Borne Mycoflora of Wheat in Egypt and Their Correlations with Weather Variables".BIOLOGY-BASEL 10.10(2021).