Pseudomonas grimontii, causal agent of turnip bacterial rot disease in Japan

2019 ◽  
Vol 85 (6) ◽  
pp. 413-423 ◽  
Author(s):  
Hiroyuki Sawada ◽  
Harukuni Horita ◽  
Tomoo Misawa ◽  
Yuichi Takikawa
Keyword(s):  
Causal Agent ◽  
Bacterial Rot ◽  
Rot Disease

scholarly journals BROWN ROOT ROT DISEASE OF CASHEW IN WEST NUSA TENGGARA: DISTRIBUTION AND ITS CAUSAL ORGANISM

2016 ◽  
Vol 5 (1) ◽  
pp. 32
Author(s):  
Supriadi Supriadi ◽  
E.M. Adhia ◽  
D. Wahyuno ◽  
S. Rahayuningsih ◽  
N. Karyani ◽  
...  
Keyword(s):  
Root Rot ◽  
Causal Agent ◽  
Causal Organism ◽  
Disease Symptoms ◽  
Root Rot Disease ◽  
Lannea Coromandelica ◽  
Leaf Yellowing ◽  
Medicinal Crops ◽  
Rot Disease ◽  
Brown Root Rot

Brown root rot disease is a major constraint on cashew plantation in Pekat District, West Nusa Tenggara. Its causal agent has not been characterized. This paper describes efforts to study the pathogen, distribution and loss. Field study was conducted in Pekat District in 2003. Laboratory  experiments to isolate and test the causal agent were conducted in the Indonesian Spices and Medicinal Crops Research Institute, Bogor.  Research results showed that the disease was found widespread in several villages in Pekat District, such as Pekat, Beringin Jaya, Sorinomo, and Nangamiro. Total number of died cashew trees was 1,075 equals to 5,106 kg kernel yield lost, worth Rp20.5 million. Infected trees showed leaf yellowing and defoliation leading to die. The lateral and taproots near collar were encrusted with gravel, earth, and brown mycelia sleeves. The fungus produced arthrospores and brown pigmentation on agar medium containing 0.05% gallic acid. An isolate of the fungus induced typical disease symptoms following inoculation on 5 month-old cashew seedlings. These results indicated that the causal agent of mass decline of cashew in Pekat District is Phellinus noxius. In field, the fungus also infects a barrier tree (Lannea coromandelica [Houtt.] Merr.) (Anacardiaceae), locally known as kedondong pagar or kayu bantenan.

Identification of Ganoderma, the causal agent of basal stem rot disease in oil palm using a molecular method

2005 ◽  
Vol 159 (1) ◽  
pp. 159-170 ◽  
Author(s):  
C. Utomo ◽  
S. Werner ◽  
F. Niepold ◽  
H.B. Deising
Keyword(s):  
Oil Palm ◽  
Causal Agent ◽  
Stem Rot ◽  
Molecular Method ◽  
Basal Stem Rot ◽  
Rot Disease

Inoculation of Euphorbia lathyris with cotton strings infested with Macrophomina phaseolina, causal agent of charcoal rot disease

1991 ◽  
Vol 69 (3) ◽  
pp. 682-685
Author(s):  
Phyllis T. Himmel
Keyword(s):  
Key Words ◽  
Macrophomina Phaseolina ◽  
Causal Agent ◽  
Silica Sand ◽  
Optimal Conditions ◽  
Lesion Development ◽  
Charcoal Rot ◽  
Temperature Regimes ◽  
Rot Disease ◽  
Euphorbia Lathyris

Root infections caused by Macrophomina phaseolina were initiated under optimal conditions for the host, Euphorbia lathyris. Two-week-old Euphorbia lathyris seedlings were inoculated by tying roots with cotton strings infested with Macrophomina phaseolina. Ninety-three per cent of the inoculated roots developed infections after 2 weeks incubation in silica sand at 25 °C. By using infested strings, differences in the incidence of lesion development were detected when infected roots were subjected to differing temperature regimes. After approximately 6 weeks, there was a significantly [Formula: see text] greater incidence of lesion development at 34 °C than at 25 °C, whereas there was no difference in the incidence of infection. Aerial symptoms indicative of charcoal rot were not observed during the course of these studies. Key words: infested strings, charcoal rot.

scholarly journals Erwinia carotovora pv. carotovora, causal agent of soft rot disease in some crops in Puerto Rico

1969 ◽  
Vol 74 (1) ◽  
pp. 83-92
Author(s):  
Amelia Cortés-Monllor
Keyword(s):  
Puerto Rico ◽  
Erwinia Carotovora ◽  
Soft Rot ◽  
Causal Agent ◽  
Bacterial Isolates ◽  
Soft Rot Disease ◽  
Calla Lily ◽  
Pathogenicity Tests ◽  
Rot Disease ◽  
Antibiotic Response

The bacterium Erwinia carotovora pv. carotovora (Jones) was identified from bacterial isolates from decaying material of tobacco, tomato, tanier, head lettuce, cabbage, Dracaena spp, Pothos spp, and calla lily as the causal agent of soft rot disease. Physiological characteristics, biochemical reactions and antibiotic response were similar among strains. The ability of the isolates to produce soft rot symptoms on healthy plants when artificially inoculated was demonstrated by pathogenicity tests.

scholarly journals Genome Sequence Resource of Fusarium brachygibbosum Padwick Strain HN-1, a Causal Agent of Maize Stalk Rot Disease

Plant Disease ◽  
2021 ◽  
Author(s):  
Hafiz Abdul Haseeb ◽  
Sajjad Hyder ◽  
Meixu Gao ◽  
Wei Guo
Keyword(s):  
Management Strategies ◽  
Gc Content ◽  
Genomic Data ◽  
Causal Agent ◽  
Secretory Proteins ◽  
Genomic Information ◽  
Binding Ability ◽  
Maize Crop ◽  
Stalk Rot ◽  
Rot Disease

Fusarium brachygibbosum Padwick, the causal agent of stalk rot disease, is a threat to the maize crop in China. However, the genomic information of the pathogen is not available yet. The current study presented the genomic information of F. brachygibbosum, isolated from maize. The genome size is 40.36 Mb and consisted of 12,510 genes. The GC content is 47.95%, and there are 913 predicted secretory proteins. The presented genomic data has highlighted the virulence features, plant-microbial interaction ability, genes associated with the pathogen's metabolic processes, and host-binding ability. Presented results would extend our knowledge of the pathogen and help us develop suitable disease management strategies.

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