<i>Fusarium falciforme</i> (FSSC 3 + 4) Causing Root and Stem Rot in Papaya (<i>Carica papaya</i>) in Mexico

Vega-Gutiérrez, T. A.; Tirado-Ramírez, M. A.; López-Urquídez, Guadalupe Alfonso; Angúlo-Castro, Azareel; Gallardo, José Ángel Martínez; Orona, Carlos Alfonso López

doi:10.1094/pdis-05-19-0917-pdn

Cited by 16 publications

(5 citation statements)

References 5 publications

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“…The F. falciforme-solani abundance was higher in the ‘ Zabad ’ cultivar when grown under saline conditions. This fungal OTU is the causative agent of root and stem rot disease in various plants [ 31 , 32 , 33 ]. Although salinity-induced plant vulnerability may allow opportunistic pathogens to proliferate, previous research has indicated that F. solani can exhibit beneficial effects under specific conditions.…”

Section: Discussionmentioning

confidence: 99%

The Effects of Salinity and Genotype on the Rhizospheric Mycobiomes in Date Palm Seedlings

Yaish,

Al-Busaidi,

Glick

et al. 2024

Biology

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Salinity severely affects the health and productivity of plants, with root-associated microbes, including fungi, potentially playing a crucial role in mitigating this effect and promoting plant health. This study employed metagenomics to investigate differences in the structures of the epiphyte mycobiomes in the rhizospheres of seedlings of two distinct date palm cultivars with contrasting salinity tolerances, the susceptible cultivar, ‘Zabad’, and the tolerant cultivar, ‘Umsila’. Next-generation sequencing (NGS) of the internal transcribed spacer (ITS) rRNA was utilized as a DNA barcoding tool. The sequencing of 12 mycobiome libraries yielded 905,198 raw sequences of 268,829 high-quality reads that coded for 135 unique and annotatable operational taxonomic units (OTUs). An OTU analysis revealed differences in the rhizofungal community structures between the treatments regardless of genotype, and non-metric dimensional scaling (N-MDS) analyses demonstrated distinct separations between the cultivars under saline stress. However, these differences were not detected under the control environmental conditions, i.e., no salinity. The rhizospheric fungal community included four phyla (Ascomycota, Basidiomycota, Chytridiomycota, and Mucoromycota), with differences in the abundances of Aspergillus, Clonostachys, and Fusarium genera in response to salinity, regardless of the genotype. Differential pairwise comparisons showed that Fusarium falciforme-solani and Aspergillus sydowii-versicolor increased in abundance under saline conditions, providing potential future in vitro isolation guidelines for plant growth-promoting fungi. This study highlights the intricate dynamics of the rhizosphere microbial communities in date palms and their responses to salt stress. Additionally, we found no support for the hypothesis that indigenous epiphytic fungal communities are significantly involved in salinity tolerance in date palms.

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Section: Discussionmentioning

confidence: 99%

The Effects of Salinity and Genotype on the Rhizospheric Mycobiomes in Date Palm Seedlings

Yaish,

Al-Busaidi,

Glick

et al. 2024

Biology

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“…This F . falciforme (FSSC 3+4) is a pathogen of common bean (Duarte et al, 2019), lima bean (Sousa et al, 2017), onion (Tirado‐Ramírez et al, 2018), papaya (Vega‐Gutiérrez et al, 2019), pistachio (Crespo et al, 2019) and other crops. Recently, F .…”

Section: Discussionmentioning

confidence: 99%

Novel causative agents of Fusarium solani species complex causing stem and fruit rot in cucurbit in Taiwan

Sritongkam

Sun

et al. 2022

Journal of Phytopathology

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Four members of Fusarium solani species complex (FSSC), F. cucurbiticola, F. petroliphilum, F. falciforme and F. keratoplasticum, cause foot, crown, stem and fruit rot in cucurbits. Although previous studies revealed that F. cucurbiticola was the pathogen causing crown and fruit rot in Taiwan melons, these are unreliable in assessing FSSC infection in cucurbits in Taiwan. We collected 47 FSSC isolates from the stem or fruit rot of bitter gourd, cucumber, luffa, melon and pumpkin, and three FSSC isolates from pumpkin seeds. Eleven pumpkin fruit rot isolates and two pumpkin seed isolates could not infect cucurbit seedlings. Luffa seedlings were tolerant to most FSSC isolates. None of the FSSC isolates could infect cucumber fruits and showed variable virulence in different cucurbit fruits. In addition, only certain FSSC isolates could be amplified by specific primers for F. cucurbiticola and F. petroliphilum. Multilocus sequence typing analyses separated FSSC isolates from the stem or fruit rot or seeds into three molecular groups with high bootstrap values: Group I isolates were F. petroliphilum (FSSC1), Group II isolates were F. solani‐melongenae (FSSC 21) and Group III isolates were F. falciforme (FSSC 3+4). The FSSC isolates amplified by specific primers for race 2 belonged to F. petroliphilum; however, the FSSC isolates amplified by specific primers for race 1 were not F. cucurbiticola. To our knowledge, the three species of the FSSC are novel causative agents in Taiwan.

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“…Particularmente, a F. falciforme se le ha reportado como fitopatógeno en algunos cultivos, como el frijol silvestre (Phaseolus vulgaris L.) donde provoca marchitez (Díaz et al 2021), en crisantemos (Chrysanthemum sp.) causa pudrición de la raíz (Thao et al 2021) y en papaya (Carica papaya L.) origina pudrición de raíces y tallos (Vega et al 2019). Por otra parte, a L. theobromae, se le considera un patógenos cosmopolita, cuenta con un gran número de hospederos de cultivos de importancia agrícola como el cacao (Theobroma cacao L.), aguacate (Persea americana Mill.…”

Section: Identificación Morfológica Y Molecular De Patógenos De Raíz ...unclassified

Patógenos causantes de la pudrición de raíz en guanábana (Annona muricata L.), en Nayarit, México

Cambero-Ayón,

Rios-Velasco,

Luna-Esquivel

et al. 2024

Ecosist. Recur. Agropec.

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In commercial soursop orchards in the state of Nayarit, Mexico, trees with apparent symptoms of root rot are observed, without the causal agent being known. Therefore, the objective of the research was to identify the fungi that cause soursop root rot. From January 2020 to January 2021, in orchards of Compostela and San Blas, Nayarit, from two trees with symptoms of possible root rot, root sections with rot were collected. Microorganisms associated with the disease were isolated and identified to carry out pathogenicity tests in one-year-old soursop trees. Fusarium falciforme and Lasiodiplodia theobromae were identified as root pathogens, both fungi are reported for the first time in this fruit tree and for Mexico.

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Fusarium falciforme (FSSC 3 + 4) Causing Root and Stem Rot in Papaya (Carica papaya) in Mexico

Cited by 16 publications

References 5 publications

The Effects of Salinity and Genotype on the Rhizospheric Mycobiomes in Date Palm Seedlings

The Effects of Salinity and Genotype on the Rhizospheric Mycobiomes in Date Palm Seedlings

Novel causative agents of Fusarium solani species complex causing stem and fruit rot in cucurbit in Taiwan

Patógenos causantes de la pudrición de raíz en guanábana (Annona muricata L.), en Nayarit, México

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