Curvularia spicifera and Curvularia muehlenbeckiae causing leaf blight on Cunninghamia lanceolata

Cui, Wen-Li; Lu, Xiaoqiang; Bian, Jin-Yue; Qi, Xi‐Ling; Li, Dewei; Huang, Lin

doi:10.1111/ppa.13198

Cited by 16 publications

(7 citation statements)

References 30 publications

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“…However, the presence of four Curvularia species in five out of 20 molecularly identified pathogens raises concern that Curvularia is an emerging threat to maize in India. C. sporobolicola was shown to be a pathogen of the grass Sporobolus australasicus in Australia [42] and C. siddiquii a pathogen of Pennisetum americanum in India [43], C. graminicola was isolated from Aristida ingrata (Poaceae) in Australia [44], and a taxonomically close relative of the fungus (Curvularia sp. BRIP 61674) was found to be a pathogen of Oryza spp.…”

Section: Discussionmentioning

confidence: 99%

Fungal Species Causing Maize Leaf Blight in Different Agro-Ecologies in India

et al. 2021

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Foliar diseases of maize cause severe economic losses in India and around the world. The increasing severity of maize leaf blight (MLB) over the past ten years necessitates rigorous identification and characterization of MLB-causing pathogens from different maize production zones to ensure the success of resistance breeding programs and the selection of appropriate disease management strategies. Although Bipolaris maydis is the primary pathogen causing MLB in India, other related genera such as Curvularia, Drechslera, and Exserohilum, and a taxonomically distant genus, Alternaria, are known to infect maize in other countries. To investigate the diversity of pathogens associated with MLB in India, 350 symptomatic leaf samples were collected between 2016 and 2018, from 20 MLB hotspots in nine states representing six ecological zones where maize is grown in India. Twenty representative fungal isolates causing MLB symptoms were characterized based on cultural, pathogenic, and molecular variability. Internal Transcribed Spacer (ITS) and glyceraldehyde-3-phosphate dehydrogenase (GADPH) gene sequence-based phylogenies showed that the majority of isolates (13/20) were Bipolaris maydis. There were also two Curvularia papendorfii isolates, and one isolate each of Bipolaris zeicola, Curvularia siddiquii, Curvularia sporobolicola, an unknown Curvularia sp. isolate phylogenetically close to C. graminicola, and an Alternaria sp. isolate. The B. zeicola, the aforesaid four Curvularia species, and the Alternaria sp. are the first reports of these fungi causing MLB in India. Pathogenicity tests on maize plants showed that isolates identified as Curvularia spp. and Alternaria sp. generally caused more severe MLB symptoms than those identified as Bipolaris spp. The diversity of fungi causing MLB, types of lesions, and variation in disease severity by different isolates described in this study provide baseline information for further investigations on MLB disease distribution, diagnosis, and management in India.

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Section: Discussionmentioning

confidence: 99%

Fungal Species Causing Maize Leaf Blight in Different Agro-Ecologies in India

et al. 2021

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“…[3][4][5][6] The major fungal pathogens on Chinese fir include Colletotrichum fructicola Prihast., L capitalensis Henn., etc. [5][6][7][8][9][10][11] Among them, Colletotrichum spp. is one of the most widespread and destructive fungal pathogens in the cultivation areas of Chinese fir.…”

Section: Introductionmentioning

confidence: 99%

A real‐time PCR for detection of pathogens of anthracnose on Chinese fir using TaqMan probe targeting ApMat gene

Sun

et al. 2022

Pest Management Science

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BACKGROUND: Anthracnose is one of the most widespread and destructive diseases on Chinese fir. Colletotrichum cangyuanense, Colletotrichum fructicola, Colletotrichum gloeosporioides, and Colletotrichum siamense are the causal agents of anthracnose on Chinese fir. A rapid and accurate diagnosis of different pathogens is critical for the disease management.RESULTS: Phylogenetic tree and sequence similarity analysis showed that the single-locus ApMat provides superior phylogenetic information and is an appropriate target to distinguish C.

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“…For example, Candida , Solicoccozyma and Rhodotorula which play important role in the degradation of a variety of organic materials ( Shailubhai et al., 1985 ; Luo et al., 2021 ) showed higher abundance in the female papaya roots, suggesting that they could collaborate with endophytic bacteria to provide carbon nutrient for female papaya reproduction. However, in the roots of male papaya, some fungal species such as Gibellulopsis ( Giraldo and Crous, 2019 ) , Curvularia ( Cui et al, 2020 ), Colletotrichum ( Gautam, 2014 ) and Vishniacozyma ( Pem et al., 2020 ) which have been described as plant pathogens were enriched in male papaya. It has also been reported that some phytopathogens in the environment are of endophyte origins and that these innocuous fungal endophytes are beneficial to their host plants against the biotic and abiotic stresses through producing secondary metabolites, which is tigger by a long process of co-evolution ( Tan and Zou, 2001 ).…”

Section: Discussionmentioning

confidence: 99%

Sex-based metabolic and microbiota differences in roots and rhizosphere soils of dioecious papaya (Carica papaya L.)

Zhou

Pang²,

Yuan³

et al. 2022

Front. Plant Sci.

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Dioecious plant species have a high genetic variation that is important for coping with or adapting to environmental stress through natural selection. Intensive studies have reported dimorphism morphism in morphology, physiology, as well as biotic and abiotic stress responses in dioecious plants. Here, we demonstrated the dimorphism of metabolic profile and the preference of some microorganisms in the roots and rhizosphere soils of male and female papaya. The metabolic composition of roots were significantly different between the males and females. Some sex hormones occurred in the differential metabolites in roots and rhizosphere soils. For example, testosterone was up-regulated in male papaya roots and rhizosphere soils, whereas norgestrel was up-regulated in the female papaya roots, indicating a possible balance in papaya roots to control the sexual differentiation. Plant hormones such as BRs, JAs, SA and GAs were also detected among the differential metabolites in the roots and rhizosphere soils of dioecious papaya. In addition, some metabolites that have medicinal values, such as ecliptasaponin A, crocin, berberine and sapindoside A were also expressed differentially between the two sexes. Numerous differential metabolites from the papaya roots were secreted in the soil, resulting in the differences in microbial community structure in the roots and rhizosphere soils. Some nitrogen-fixing bacteria such as Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium, Brevundimonas and Microvirga were enriched in the male papaya roots or rhizosphere soils. While Candidatus Solibacter and Tumebacillus, which utilize organic matters, were enriched in the roots or rhizosphere soils of the female papaya. Some differences in the fungi abundance were also observed in both male and female papaya roots. These findings uncovered the effect of sex types on the metabolic and microbiota differences in roots and rhizosphere soils in papaya and will lead to investigations of underlining genomic and molecular mechanisms.

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Curvularia spicifera and Curvularia muehlenbeckiae causing leaf blight on Cunninghamia lanceolata

Cited by 16 publications

References 30 publications

Fungal Species Causing Maize Leaf Blight in Different Agro-Ecologies in India

Fungal Species Causing Maize Leaf Blight in Different Agro-Ecologies in India

A real‐time PCR for detection of pathogens of anthracnose on Chinese fir using TaqMan probe targeting ApMat gene

Sex-based metabolic and microbiota differences in roots and rhizosphere soils of dioecious papaya (Carica papaya L.)

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