scholarly journals Fusarium Species Complex Causing Pokkah Boeng in China

2018 ◽  
Author(s):  
Muqing Zhang ◽  
John Martin Jerome Jeyakumar
Keyword(s):  
Species Complex ◽  
Fusarium Species ◽  
Pokkah Boeng

scholarly journals Species-Specific Detection and Identification of Fusarium Species Complex, the Causal Agent of Sugarcane Pokkah Boeng in China

PLoS ONE ◽  
2014 ◽  
Vol 9 (8) ◽  
pp. e104195 ◽  
Author(s):  
Zhenyue Lin ◽  
Shiqiang Xu ◽  
Youxiong Que ◽  
Jihua Wang ◽  
Jack C. Comstock ◽  
...  
Keyword(s):  
Species Complex ◽  
Fusarium Species ◽  
Causal Agent ◽  
Specific Detection ◽  
Pokkah Boeng ◽  
Detection And Identification ◽  
Species Specific

scholarly journals Molecular characterization of carbendazim resistance of Fusarium species complex that causes sugarcane pokkah boeng disease

BMC Genomics ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Shiqiang Xu ◽  
Jihua Wang ◽  
Haixuan Wang ◽  
Yixue Bao ◽  
Yisha Li ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Species Complex ◽  
Fusarium Species ◽  
Pokkah Boeng

scholarly journals A Novel Disease of Big-Leaf Mahogany Caused by Two Fusarium Species in Mexico

Plant Disease ◽  
2018 ◽  
Vol 102 (10) ◽  
pp. 1965-1972 ◽  
Author(s):  
R. Santillán-Mendoza ◽  
S. P. Fernández-Pavía ◽  
K. O’Donnell ◽  
R. C. Ploetz ◽  
R. Ortega-Arreola ◽  
...  
Keyword(s):  
Species Complex ◽  
Fusarium Species ◽  
Urban Landscapes ◽  
Western Region ◽  
New Disease ◽  
Molecular Systematic ◽  
Lateral Buds ◽  
Mango Malformation ◽  
First Time ◽  
Important Disease

Big-leaf mahogany (Swietenia macrophylla) is valued for its high-quality wood and use in urban landscapes in Mexico. During surveys of mango-producing areas in the central western region of Mexico, symptoms of malformation, the most important disease of mango in the area, were observed on big-leaf mahogany trees. The objectives of this research were to describe this new disease and determine its cause. Symptoms on big-leaf mahogany at four sites in Michoacán, Mexico resembled those of the vegetative phase of mango malformation, including compact, bunched growth of apical and lateral buds, with greatly shortened internodes and small leaves that curved back toward the supporting stem. Of 163 isolates that were recovered from symptomatic tissues, most were identified as Fusarium pseudocircinatum (n = 121) and F. mexicanum (n = 39) using molecular systematic data; two isolates represented unnamed phylospecies within the F. incarnatum-equiseti species complex (FIESC 20-d and FIESC 37-a) and another was in the F. solani species complex (FSSC 25-m). However, only F. mexicanum and F. pseudocircinatum induced malformation symptoms on 14-day-old seedlings of big-leaf mahogany. The results indicate that F. mexicanum and F. pseudocircinatum, previously reported in Mexico as causal agents of mango malformation disease, also affect big-leaf mahogany. This is the first report of this new disease and the first time that F. mexicanum was shown to affect a host other than mango.

scholarly journals Current Classification and Diversity of Fusarium Species Complex, the Causal Pathogen of Fusarium Wilt Disease of Banana in Malaysia

Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1955
Author(s):  
Anysia Hedy Ujat ◽  
Ganesan Vadamalai ◽  
Yukako Hattori ◽  
Chiharu Nakashima ◽  
Clement Kiing Fook Wong ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Fusarium Wilt ◽  
Species Complex ◽  
Phylogenetic Trees ◽  
Fusarium Species ◽  
Morphological Characteristics ◽  
Pathogenicity Test ◽  
Fusarium Spp ◽  
Specific Primers ◽  
Fusarium Oxysporum Species Complex

The re-emergence of the Fusarium wilt caused by Fusarium odoratissimum (F. odoratissimum) causes global banana production loss. Thirty-eight isolates of Fusarium species (Fusarium spp.) were examined for morphological characteristics on different media, showing the typical Fusarium spp. The phylogenetic trees of Fusarium isolates were generated using the sequences of histone gene (H3) and translation elongation factor gene (TEF-1α). Specific primers were used to confirm the presence of F. odoratissimum. The phylogenetic trees showed the rich diversity of the genus Fusarium related to Fusarium wilt, which consists of F. odoratissimum, Fusarium grosmichelii, Fusarium sacchari, and an unknown species of the Fusarium oxysporum species complex. By using Foc-TR4 specific primers, 27 isolates were confirmed as F. odoratissimum. A pathogenicity test was conducted for 30 days on five different local cultivars including, Musa acuminata (AAA, AA) and Musa paradisiaca (AAB, ABB). Although foliar symptoms showed different severity of those disease progression, vascular symptoms of the inoculated plantlet showed that infection was uniformly severe. Therefore, it can be concluded that the Fusarium oxysporum species complex related to Fusarium wilt of banana in Malaysia is rich in diversity, and F. odoratissimum has pathogenicity to local banana cultivars in Malaysia regardless of the genotype of the banana plants.

scholarly journals Assessment of Toxigenic Fusarium Species and Their Mycotoxins in Brewing Barley Grains

Toxins ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 31 ◽  
Author(s):  
Karim Piacentini ◽  
Liliana Rocha ◽  
Geovana Savi ◽  
Lorena Carnielli-Queiroz ◽  
Livia De Carvalho Fontes ◽  
...  
Keyword(s):  
Species Complex ◽  
Fusarium Species ◽  
Plant Diseases ◽  
Phylogenetic Study ◽  
Brewing Industry ◽  
Yield And Quality ◽  
High Incidence ◽  
Barley Grains

Fusarium species threaten yield and quality of cereals worldwide due to their ability to produce mycotoxins and cause plant diseases. Trichothecenes and zearalenone are the most economically significant mycotoxins and are of particular concern in barley, maize and wheat. For this reason, the aim of this study was to characterize the Fusarium isolates from brewing barley and to assess deoxynivalenol and zearalenone contamination in grains. Characterization of the Fusarium strains was carried out by the phylogeny based on two loci (EF-1α and RPB2). Mycotoxin detection and quantification were performed by LC-MS. The results show that Fusarium was the predominant genus. Phylogenetic study demonstrated that the majority of the strains clustered within the Fusarium sambucinum species complex followed by the Fusarium tricinctum species complex. The results revealed high incidence of deoxynivalenol (DON) and zearalenone (ZEA) contamination (90.6% and 87.5%, respectively). It was observed that 86% of the samples contaminated with ZEA were above the limits set by the EU and Brazilian regulations. These results may highlight the importance of controlling Fusarium toxins in barley, mainly because of its use in the brewing industry and the resistance of various mycotoxins to food processing treatments.

Fusarium species complex and mycotoxins in grain maize from maize hybrid trials and from grower’s fields

2011 ◽  
Vol 111 (3) ◽  
pp. 693-706 ◽  
Author(s):  
B. Dorn ◽  
H.R. Forrer ◽  
E. Jenny ◽  
F.E. Wettstein ◽  
T.D. Bucheli ◽  
...  
Keyword(s):  
Species Complex ◽  
Fusarium Species ◽  
Maize Hybrid

scholarly journals One Fungus, One Name: Defining the Genus Fusarium in a Scientifically Robust Way That Preserves Longstanding Use

2013 ◽  
Vol 103 (5) ◽  
pp. 400-408 ◽  
Author(s):  
David M. Geiser ◽  
Takayuki Aoki ◽  
Charles W. Bacon ◽  
Scott E. Baker ◽  
Madan K. Bhattacharyya ◽  
...  
Keyword(s):  
Plant Pathology ◽  
Species Complex ◽  
Fusarium Species ◽  
Basic Research ◽  
International Code ◽  
Genus Fusarium ◽  
Code Of Nomenclature ◽  
Scientific Principles ◽  
One Fungus One Name ◽  
International Code Of Nomenclature

In this letter, we advocate recognizing the genus Fusarium as the sole name for a group that includes virtually all Fusarium species of importance in plant pathology, mycotoxicology, medicine, and basic research. This phylogenetically guided circumscription will free scientists from any obligation to use other genus names, including teleomorphs, for species nested within this clade, and preserve the application of the name Fusarium in the way it has been used for almost a century. Due to recent changes in the International Code of Nomenclature for algae, fungi, and plants, this is an urgent matter that requires community attention. The alternative is to break the longstanding concept of Fusarium into nine or more genera, and remove important taxa such as those in the F. solani species complex from the genus, a move we believe is unnecessary. Here we present taxonomic and nomenclatural proposals that will preserve established research connections and facilitate communication within and between research communities, and at the same time support strong scientific principles and good taxonomic practice.

Fusarium species complex on maize in Switzerland: occurrence, prevalence, impact and mycotoxins in commercial hybrids under natural infection

2009 ◽  
Vol 125 (1) ◽  
pp. 51-61 ◽  
Author(s):  
Brigitte Dorn ◽  
Hans-Rudolf Forrer ◽  
Stéphanie Schürch ◽  
Susanne Vogelgsang
Keyword(s):  
Species Complex ◽  
Fusarium Species ◽  
Natural Infection

scholarly journals First Report on Ovate-leaf Atractylodes Damping-off Caused by Fusarium oxysporum species Complex in South Korea

Plant Disease ◽  
2021 ◽  
Author(s):  
Oliul Hassan ◽  
Taehyun Chang
Keyword(s):  
South Korea ◽  
Fusarium Oxysporum ◽  
Species Complex ◽  
Disease Incidence ◽  
Fusarium Species ◽  
Morphological Characteristics ◽  
Conidial Suspension ◽  
Sterile Water ◽  
Damping Off ◽  
First Report

In South Korea, ovate-leaf atractylodes (OLA) (Atractylodes ovata) is cultivated for herbal medicine. During May to June 2019, a disease with damping off symptoms on OLA seedlings were observed at three farmer fields in Mungyeong, South Korea. Disease incidence was estimated as approximately 20% based on calculating the proportion of symptomatic seedlings in three randomly selected fields. Six randomly selected seedlings (two from each field) showing damping off symptoms were collected. Small pieces (1 cm2) were cut from infected roots, surface-sterilized (1 minute in 0.5% sodium hypochlorite), rinsed twice with sterile water, air-dried and then plated on potato dextrose agar (PDA, Difco, and Becton Dickinson). Hyphal tips were excised and transferred to fresh PDA. Six morphologically similar isolates were obtained from six samples. Seven-day-old colonies, incubated at 25 °C in the dark on PDA, were whitish with light purple mycelia on the upper side and white with light purple at the center on the reverse side. Macroconidia were 3–5 septate, curved, both ends were pointed, and were 19.8–36.62 × 3.3–4.7 µm (n= 30). Microconidia were cylindrical or ellipsoid and 5.5–11.6 × 2.5–3.8 µm (n=30). Chlamydospores were globose and 9.6 –16.3 × 9.4 – 15.0 µm (n=30). The morphological characteristics of present isolates were comparable with that of Fusarium species (Maryani et al. 2019). Genomic DNA was extracted from 4 days old cultures of each isolate of SRRM 4.2, SRRH3, and SRRH5, EF-1α and rpb2 region were amplified using EF792 + EF829, and RPB2-5f2 + RPB2-7cr primer sets, respectively (Carbone and Kohn, 1999; O'Donnell et al. 2010) and sequenced (GenBank accession number: LC569791- LC569793 and LC600806- LC600808). BLAST query against Fusarium loci sampled and multilocus sequence typing database revealed that 99–100% identity to corresponding sequences of the F. oxysporum species complex (strain NRRL 28395 and 26379). Maximum likelihood phylogenetic analysis with MEGA v. 6.0 using the concatenated sequencing data for EF-1α and rpb2 showed that the isolates belonged to F. oxysporum species complex. Each three healthy seedlings with similar sized (big flower sabju) were grown for 20 days in a plastic pot containing autoclaved peat soil was used for pathogenicity tests. Conidial suspensions (106 conidia mL−1) of 20 days old colonies per isolate (two isolates) were prepared in sterile water. Three pots per strain were inoculated either by pouring 50 ml of the conidial suspension or by the same quantity of sterile distilled water as control. After inoculation, all pots were incubated at 25 °C with a 16-hour light/8-hour dark cycle in a growth chamber. This experiment repeated twice. Inoculated seedlings were watered twice a week. Approximately 60% of the inoculated seedlings per strain wilted after 15 days of inoculation and control seedlings remained asymptomatic. Fusarium oxysporum was successfully isolated from infected seedling and identified based on morphology and EF-1α sequences data to confirm Koch’s postulates. Fusarium oxysporum is responsible for damping-off of many plant species, including larch, tomato, melon, bean, banana, cotton, chickpea, and Arabidopsis thaliana (Fourie et al. 2011; Hassan et al.2019). To the best of our knowledge, this is the first report on damping-off of ovate-leaf atractylodes caused by F. oxysporum in South Korea. This finding provides a basis for studying the epidemic and management of the disease.

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