Identification of Erwinia sp., causing stalk rot of maize in Egypt

El-Helaly, A. F.; Abo-El-Dahab, M. K.; El‐Goorani, M. A.; Gabr, M. M.

doi:10.1016/s0323-6056(78)80073-1

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…Being located in a divergent evolutionary branch, D. zeae bacteria were reported to infect a wide range of plants all over the world, including 4 kinds of natural dicotyledonous hosts such as potato, tobacco, Chrysanthemum and Philodendron , and 6 kinds of natural monocotyledonous hosts such as maize, rice, banana, pineapple, Brachiaria and hyacinth (Additional file 1 ) [ 3 , 8 , 10 , 12 – 32 ], besides, other 32 kinds of plants were reported as artificial hosts of D. zeae (Additional file 1 ) [ 13 , 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Dickeya zeae strains isolated from rice, banana and clivia rot plants show great virulence differentials

Chen

et al. 2018

BMC Microbiol

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BackgroundDickeya zeae is the causal agent of maize and rice foot rot diseases, but recently it was also found to infect banana and cause severe losses in China. Strains from different sources showed significant diversity in nature, implying complicated evolution history and pathogenic mechanisms.ResultsD. zeae strains were isolated from soft rot banana plants and ornamental monocotyledonous Clivia miniata. Compared with D. zeae strain EC1 isolated from rice, clivia isolates did not show any antimicrobial activity, produced less extracellular enzymes, had a much narrow host ranges, but released higher amount of extracellular polysaccharides (EPS). In contrast, the banana isolates in general produced more extracellular enzymes and EPS than strain EC1. Furthermore, we provided evidence that the banana D. zeae isolate MS2 produces a new antibiotic/phytotoxin(s), which differs from the zeamine toxins produced by rice pathogen D. zeae strain EC1 genetically and in its antimicrobial potency.ConclusionsThe findings from this study expanded the natural host range of D. zeae and highlighted the genetic and phenotypic divergence of D. zeae strains. Conclusions can be drawn from a series of tests that at least two types of D. zeae strains could cause the soft rot disease of banana, with one producing antimicrobial compound while the other producing none, and the D. zeae clivia strains could only infect monocot hosts. D. zeae strains isolated from different sources have diverse virulence characteristics.Electronic supplementary materialThe online version of this article (10.1186/s12866-018-1300-y) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Dickeya zeae strains isolated from rice, banana and clivia rot plants show great virulence differentials

Chen

et al. 2018

BMC Microbiol

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“…Stalk rot is caused by many species of Fusarium and Pythium. F. verticillioides , F. subglutinans , and F. proliferatum are important fungi that have caused significant losses of maize in the USA [8,9,10,11]. It was reported that corn stalk rot is mainly caused by F. moniliforme in Hebei, Hubei, and Guangxi Provinces of China [12], while F. graminearum is the main pathogen in Shaanxi, Jilin, and Henan Provinces of China [13].…”

Section: Introductionmentioning

confidence: 99%

The Relationship Analysis on Corn Stalk Rot and Ear Rot According to Fusarium Species and Fumonisin Contamination in Kernels

Cao

et al. 2019

Toxins

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Fusarium diseases, including corn root rot, sheath rot, stalk rot, and ear rot are frequently occurring in maize producing areas of China. Fusarium stalk rot and ear rot are the most serious diseases and often occur at the same time, but it is unclear whether there is a correlation between Fusarium composition and disease occurrence. This study was conducted to clarify the relationship between the two diseases. A total of 49 corn stalk rot samples were collected from 15 regions of eight provinces in China from 2016 to 2018. The pathogens were isolated and identified separately from stalks, ear stems, and kernels. The contents of the fumonisins (FB1 and FB2) were detected in kernels. The results showed that the main Fusarium species were found in corn kernels, ear stems and stalks at the same time. The results showed that 1201 strains of Fusarium verticillioides, 668 strains of Fusarium oxysporum, 574 strains of Fusarium graminearum species complex (FGSC), 318 strains of Fusarium equiseti, 95 strains of Fusarium proliferatum, and 40 strains of Fusarium subglutinans were isolated from 1470 corn kernels, 245 ear stems, and 1225 stalks randomly selected from 49 samples. The contamination rate of fumonisins in the 49 samples was 57.1% with an average content of 1.9 μg/g, of which four samples exhibited higher levels as set by the European Commission (4.0 μg/g). These results provide a certain association between stalk rot and ear rot and lay a foundation to study the relationships among Fusarium maize diseases.

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Occurrence and virulence of Fusarium spp. associated with stalk rot of maize in North-East China

Saravanakumar

Xia

et al. 2017

Physiological and Molecular Plant Pathology

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Identification of Erwinia sp., causing stalk rot of maize in Egypt

Cited by 4 publications

References 5 publications

Dickeya zeae strains isolated from rice, banana and clivia rot plants show great virulence differentials

Dickeya zeae strains isolated from rice, banana and clivia rot plants show great virulence differentials

The Relationship Analysis on Corn Stalk Rot and Ear Rot According to Fusarium Species and Fumonisin Contamination in Kernels

Occurrence and virulence of Fusarium spp. associated with stalk rot of maize in North-East China

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