Article
Plant Sciences
Vito Campanella, Rosa Petralia
Summary: This study evaluated the resistance of 36 Sicilian durum wheat landraces to Fusarium culmorum during the seed germination phase. The results showed that several landraces exhibited resistance to the pathogen, suggesting their potential as a gene pool for resistance factors.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2022)
Article
Plant Sciences
Yushuai Mao, Jian Wu, Wen Song, Baoquan Zhao, Huahua Zhao, Yiqiang Cai, Jianxin Wang, Mingguo Zhou, Yabing Duan
Summary: Wheat brown foot rot (WBFR) is an important soilborne and seedborne disease of wheat, causing lodging and seedling dieback. In this study, 64 isolates of WBFR were identified as Microdochium majus. The antifungal activities of fludioxonil and prochloraz against M. majus were determined, showing good efficacy. Seed coating with fludioxonil or prochloraz significantly reduced disease incidence and improved seedling survival rates.
Article
Plant Sciences
Lifei Huang, Xinxin Zhang, Yiling Yang, Hongda Zou, Boping Fang, Weiming Liu
Summary: This study presents the high-quality genome sequence of Diaporthe destruens isolate CRI 305-2, originally isolated from infected sweet potato stem in Taizhou City, Zhejiang Province, China. The genome can serve as a valuable reference for evolution mechanisms and comparative genomic research.
Article
Microbiology
Cristina Bez, Alfonso Esposito, Hang Dinh Thuy, Minh Nguyen Hong, Giampiero Vale, Danilo Licastro, Iris Bertani, Silvano Piazza, Vittorio Venturi
Summary: This study focused on the pathobiome analysis of rice foot rot disease caused by Dickeya zeae, revealing the impact of the bacterial pathogen on the resident microbiome and the interactions between the pathogen and the microbial community involved in the disease process. The presence of D. zeae was found to alter the resident bacterial community and lead to the formation of microbial consortia associated with the disease state. Additionally, several bacterial species were identified to be co-present with the pathogen, suggesting their potential involvement in the disease process.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Horticulture
Lidia Aparicio-Duran, Juan M. Arjona-Lopez, Aurea Hervalejo, Rocio Calero-Velazquez, Francisco J. Arenas-Arenas
Summary: Different citrus rootstocks showed varied susceptibility responses to Phytophthora nicotianae, with eleven new rootstocks demonstrating improved tolerance to the pathogen. These findings provide useful information for citrus growers in selecting rootstocks to address disease problems caused by Phytophthora spp.
Article
Soil Science
Vito Campanella
Summary: In this study, the distribution and abundance of Fusarium species in the soil rhizosphere of durum wheat plants affected by Fusarium foot rot (FFR) were analyzed. Seventeen Fusarium species were identified, with five species being isolated from all soil samples at relatively high densities. In vitro experiments showed that some species had a significant negative impact on seed germination and seedling growth, while others had little effect. Fusarium acuminatum and F. culmorum were identified as highly pathogenic species, while the role of F. compactum and F. equiseti in the soil rhizosphere of durum wheat plants affected by FFR remains unclear.
APPLIED SOIL ECOLOGY
(2023)
Article
Biology
Maela Leon, Monica Berbegal, Paloma Abad-Campos, Antonio Ramon-Albalat, Tito Caffi, Vittorio Rossi, Gultakin Hasanaliyeva, Pierre Antoine Noceto, Daniel Wipf, Sasa Sirca, Jaka Razinger, Anne-Laure Fragniere, Patrik Kehrli, Aurora Ranca, Anamaria Petrescu, Josep Armengol
Summary: The study found that black-foot disease-associated fungi can be present on the roots of cover crops grown in organic vineyards, potentially increasing inoculum levels in vineyard soils. Results showed that various fungal species related to black-foot disease were found on cover crops in several European countries.
Article
Agronomy
Thais Regina Pintino De Almeida, Iwanne Lima Coelho, Leirson Salvador Bezerra Vasconcelos, Elder Felipe De Moura Silva, Leticia Rebeca De Araujo Barros, Maria Aparecida Pontes, Tarciana Silva Dos Santos, Willie Anderson Dos Santos Vieira, Marcos Paz Saraiva Camara, Delson Laranjeira
Summary: Colonies resembling Nigrospora were found in sweet potato plants affected by foot rot disease in Lagoa dos Gatos, Brazil. Inoculation of these isolates in sweet potato tubers resulted in similar symptoms, with brown lesions turning black and yellowing of leaves. Morphological and phylogenetic analyses confirmed the presence of Nigrospora vesicularifera, marking its first identification in sweet potato and its first record as a pathogen in Brazil.
Article
Agronomy
Miriam Diaz-Diaz, Alexander Bernal-Cabrera, Antonio Trapero, Alfredo Jimenez Gonzalez, Ricardo Medina-Marrero, Rene Dionsio Cupull-Santana, Edisleidy Aguila-Jimerez, Carlo Augusti-Brisach
Summary: Soil-borne pathogens associated with root rot complex diseases have devastating effects on global common bean (Phaseolus vulgaris L.) yield. In this study, the potential of Streptomyces sp. strains CBQ-EA2 and CBQ-B-8 as biological control agents (BCAs) against root rot complex disease of P. vulgaris was evaluated under natural field conditions in Cuba. Seed treatments with these strains showed significantly higher efficacy in disease reduction than the chemical control and had similar effects as the BCA T. harzianum A-34. The combination of the two Streptomyces strains exhibited the best results in disease reduction and improved germination, yield, and quality of legumes. The findings suggest that microbial consortia should be further researched for the development of biological products for crop protection.
Article
Microbiology
J. M. Plett, J. Solomon, F. Snijders, J. Marlow-Conway, K. L. Plett, S. L. Bithell
Summary: This study evaluated interactions between rhizobia species Mesorhizobium ciceri and oomycete pathogen Phytophthora medicaginis, finding that post-pathogen M. ciceri inoculation improved resistance to PRR in chickpea. This improvement may be due to multiple mechanisms including improved host nutrition, direct inhibition of pathogen growth, and the induction of plant defense responses.
MICROBIOLOGICAL RESEARCH
(2021)
Article
Environmental Sciences
Mikhail Semenov, George S. Krasnov, Vyacheslav M. Semenov, Natalia Ksenofontova, Natalia B. Zinyakova, Ariena H. C. van Bruggen
Summary: Manure inputs into soil can significantly impact soil microbial communities, increasing microbial biomass and diversity mainly through activation of soil-borne microbes. Most exogenous microbes from manure do not survive in soil conditions after a few months.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Plant Sciences
Chuanyu Yang, Veronica Ancona
Summary: This study analyzed the endophytic bacterial and fungal communities in roots of Phytophthora foot-rot-affected and healthy citrus trees, finding that the composition and structure of the communities were altered, with decreases in beneficial bacteria and fungi in the roots of foot-rot-affected citrus trees.
PHYTOBIOMES JOURNAL
(2021)
Article
Plant Sciences
Massimo Rippa, Andrea Pasqualini, Rossella Curcio, Pasquale Mormile, Catello Pane
Summary: Cultivation of wild rocket as a baby-leaf vegetable is increasing due to its nutritional and taste qualities, but it is susceptible to soil-borne fungal diseases. Current disease management methods include synthetic fungicides and agro-ecological and biological approaches. This study explores the use of infrared thermography (IT) for early detection of rot diseases in wild rocket plants. Both active and passive thermographic methods were used to monitor leaves inoculated with soil-borne pathogens, and the results showed promising potential for early detection of these diseases.
Article
Ecology
Akoutou Mvondo Etienne, Ndo Eunice Golda Daniele, Bidzanga Nomo Lucien, Ambang Zachee, Bella Manga Faustin, Cilas Christian
Summary: This study evaluated the impact of tree diversity and shade rate on the spread of citrus Phytophthora foot rot disease (PFRD) in agroforestry systems. The results showed that shade had an antagonistic effect, and factors like shade, temperature, humidity, and rainfall were the main drivers of PFRD intensity in agroforestry systems.
BASIC AND APPLIED ECOLOGY
(2022)
Article
Horticulture
Subhankar Mandal, Christopher S. Cramer
Summary: Fusarium basal rot caused by Fusarium oxysporum f. sp. cepae poses a major threat to onion production worldwide. Screening 85 onion accessions from 23 countries revealed certain accessions with high resistance at both seedling and mature bulb stages, showing promise for breeding FBR-resistant onion cultivars. The variability in susceptibility among accessions highlights the potential for incorporating FBR-resistance into short-day onion cultivars.