Article
Plant Sciences
Jing Wen, Yanqi Shen, Yuexian Xing, Ziyu Wang, Siping Han, Shijie Li, Chunming Yang, Dongyun Hao, Yan Zhang
Summary: In this study, maize ear rot caused by Fusarium verticillioides was genetically mapped in three F-2 populations using F-2:3 families derived from resistant and susceptible parental lines. High heritability estimates indicated the significant role of genetic factors in phenotypic variation, with a total of 20 resistance QTLs identified in the populations. QTLs with large effects from resistant parents were found, indicating potential hotspots for resistance. These identified QTLs can be utilized for marker-assisted selection to improve ear rot resistance in maize.
Article
Microbiology
J. Harish, Prashant P. Jambhulkar, Ruchira Bajpai, Meenakshi Arya, Piyoosh K. Babele, Sushil K. Chaturvedi, Anil Kumar, Dilip K. Lakshman
Summary: Post flowering stalk rot (PFSR) caused by Fusarium species is a global threat to maize production. Traditional identification based on morphology has limitations due to minor morphological variations among different Fusarium species. This study collected and assessed 71 isolates from 40 sites in India to determine the diversity of Fusarium spp. associated with maize crops showing PFSR symptoms. Pathogenicity tests identified ten most virulent isolates, and morphological traits divided the isolates into nine clusters. Knowledge about the variability of Fusarium spp. responsible for PFSR in different regions of India can support disease management and resistance screening in maize cultivars.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Valliappan Karuppiah, Zhixiang Lu, Xinhua Wang, Yaqian Li, Jie Chen
Summary: This study found that Trichoderma asperellum can effectively inhibit the growth of Fusarium graminearum and increase maize yield by upregulating the expression of defense-related genes and signal transduction pathways, as well as degrading mycotoxins through the upregulation of the UDPglucuronosyltransferase (UGT) gene.
BIOLOGICAL CONTROL
(2022)
Article
Plant Sciences
Ana Cao, Noemi Gesteiro, Rogelio Santiago, Rosa Ana Malvar, Ana Butron
Summary: Fusarium verticillioides is a threat to maize production due to its ability to infect maize kernel and produce fumonisins. Metabolic studies were conducted to uncover pathways involved in maize resistance to Fusarium ear rot and fumonisin contamination. Differences in membrane lipid homeostasis, methionine metabolism, and indolacetic acid conjugation were found to be relevant in distinguishing between resistant and susceptible inbreds. Specific metabolites such as spermidine and isoquinoline showed potential as indirect selection traits for improving resistance to Fusarium ear rot and reducing fumonisin accumulation.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Wanyi Jiang, Wenbo Han, Ruiting Wang, Yonggang Li, Guanghui Hu, Jianfen Yang, Dan Jiang, Wenhao Han, Mingquan Wang, Guoliang Li
Summary: This study developed a rapid continuous injection inoculation technique to evaluate maize inbred lines for resistance to Fusarium spp., identifying 6 inbred lines with high resistance, 20 with resistance, 32 susceptible, and 39 very susceptible out of 97 lines tested. Analysis of molecular variance showed a significant correlation between population of the inbred maize line and resistance to Fusarium stalk rot.
Article
Plant Sciences
Martina Sanna, Ilaria Martino, Vladimiro Guarnaccia, Monica Mezzalama
Summary: This study investigated the diversity and pathogenicity of 41 isolates recovered from symptomatic seedlings and seeds of five different geographical origins in Northern Italy. It identified F. annulatum and two lineages of Fusarium oxysporum SC as maize pathogens for the first time in Italy.
Article
Plant Sciences
Renata Belisario, Alison E. Robertson, Lisa J. Vaillancourt
Summary: Anthracnose stalk rot (ASR) of maize causes significant economic losses annually in the United States. Current management strategies focus on host resistance and reducing plant stressors. Future management may rely more heavily on host resistance, though effective sources are limited.
Article
Agronomy
Agustin F. Arata, Mauro Martinez, Eliana Castanares, Rodrigo I. Galizio, Miriam D. Fernandez, Maria I. Dinolfo
Summary: This study analyzed the diversity of Fusarium species in maize tassels and their potential relationship with stalk rot. The most frequent species isolated from tassels was Fusarium verticillioides. The isolates were also found to be pathogenic on maize stalks, indicating the potential risks for consumer health and food safety.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2023)
Article
Plant Sciences
Yusheng Xia, Baobao Wang, Lihong Zhu, Wenqi Wu, Suli Sun, Zhendong Zhu, Xinhai Li, Jianfeng Weng, Canxing Duan
Summary: This study comprehensively characterized and mapped the genetic basis of FER resistance in maize using RIL and CSSL populations. A total of 17 QTL were identified, with qFER1.03 having the strongest effect on FER resistance. Further analysis revealed that qFER1.03 differed from other resistance QTL on chromosome 1 and identified a candidate gene, GRMZM2G017792 (MPK3), in this region.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Xinyang Liao, Juan Sun, Quanquan Li, Wenyan Ding, Binbin Zhao, Baobao Wang, Shaoqun Zhou, Haiyang Wang
Summary: In this study, it was found that ZmSIZ1a and ZmSIZ1b play a crucial role in resisting FER, and they have a redundant but indispensable function in the resistance process. Integrating transcriptome and metabolome data, it was discovered that the synthesis pathway of flavonoids was induced by F. verticillioides infection and significantly reduced in the Zmsiz1a/1b double mutant. These findings provide potential new gene resources for molecular breeding of FER-resistant maize cultivars.
MOLECULAR PLANT PATHOLOGY
(2023)
Article
Plant Sciences
Hafiz Abdul Haseeb, Sajjad Hyder, Meixu Gao, Wei Guo
Summary: This study presented the genomic information of Fusarium brachygibbosum, the causal agent of stalk rot disease in maize. The genomic data highlighted the pathogen's virulence features, plant-microbe interaction ability, genes associated with metabolic processes, and host-binding ability.
Article
Agronomy
Prashant P. Jambhulkar, M. Raja, Bhumica Singh, Sonali Katoch, Shailendra Kumar, Pratibha Sharma
Summary: The study focused on the efficacy of twenty seven Trichoderma strains against Fusarium verticillioides, a major pathogen causing post flowering stalk rot in winter maize. Three potential native strains of Trichoderma spp were found to be effective in controlling the disease in the field, showing significant inhibition of the pathogen. Application of the Trichoderma strains improved crop stand and reduced lodging and disease severity in maize plants, suggesting their potential as a non-chemical alternative for disease management.
Article
Agronomy
Yubo Liu, Guanghui Hu, Ao Zhang, Alexander Loladze, Yingxiong Hu, Hui Wang, Jingtao Qu, Xuecai Zhang, Michael Olsen, Felix San Vicente, Jose Crossa, Feng Lin, Boddupalli M. Prasanna
Summary: The study identified multiple SNPs associated with FER resistance in maize, with moderate prediction accuracies observed. Genomic background and minor QTL were found to play a significant role in controlling FER resistance. Incorporating SNP associations from GWAS into genomic selection shows promise for improving FER resistance in maize.
Article
Microbiology
Kaifei Xi, Liuying Shan, Yini Yang, Guoqing Zhang, Jun Zhang, Wei Guo
Summary: The study conducted a survey on the population, pathogenicity, and toxigenic chemotypes of Fusarium species associated with maize stalk rot in Yunnan Province, China. Twelve different Fusarium species were identified, each showing varying levels of aggressiveness in causing disease symptoms on maize stalks. This research will aid in designing an effective integrated control strategy for maize stalk rot in the region.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Xilang Yang, Xi Xu, Shuo Wang, Li Zhang, Guijin Shen, Haolin Teng, Chunbo Yang, Chunru Song, Wensheng Xiang, Xiangjing Wang, Junwei Zhao
Summary: This study revealed a greater diversity of Fusarium species associated with maize sheath rot in Heilongjiang province than previously reported, with F. subglutinans, F. temperatum, F. solani, F. sporotrichioides, F. tricinctum, and F. acuminatum identified as causal agents for the first time. The population expansion of F. verticillioides was also observed.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)