scholarly journals The suppressive effect of a Paenibacillus isolate on crown and root rot disease of tomato caused by Fusarium oxysporum f. sp. radicis-lycopersici in tomato field

2013 ◽  
Vol 55 (0) ◽  
pp. 67-69
Author(s):  
Yutaka Iwamoto ◽  
Katsunari Matsuura ◽  
Ikuo Sato ◽  
Shigenobu Yoshida ◽  
Seiya Tsushima ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Root Rot ◽  
Suppressive Effect ◽  
Root Rot Disease ◽  
Tomato Field ◽  
Crown And Root Rot ◽  
Rot Disease

scholarly journals Induction of systemic resistance against Fusarium crown and root rot disease by blast processing

2015 ◽  
Vol 10 (1) ◽  
pp. 262-269 ◽  
Author(s):  
Mohsen Mohamed Elsharkawy ◽  
Tatsuya Hase ◽  
Yusuke Yagi ◽  
Masafumi Shimizu ◽  
Mitsuro Hyakumachi
Keyword(s):  
Root Rot ◽  
Systemic Resistance ◽  
Root Rot Disease ◽  
Crown And Root Rot ◽  
Rot Disease

scholarly journals Regulation of related genes promoting resistant in Iris against root rot disease, Fusarium oxysporum f. sp. gladioli

Genomics ◽  
2020 ◽  
Vol 112 (5) ◽  
pp. 3013-3020 ◽  
Author(s):  
Masoud Mazaheri Tehrani ◽  
Mehdi Nasr Esfahani ◽  
Amir Mousavi ◽  
Forogh Mortezaiinezhad ◽  
Mohammad Hosein Azimi
Keyword(s):  
Fusarium Oxysporum ◽  
Root Rot ◽  
Root Rot Disease ◽  
Rot Disease

scholarly journals Role of the Shrub Tamarix nilotica in Dissemination of Fusarium oxysporum f. sp. radicis-lycopersici

Plant Disease ◽  
2001 ◽  
Vol 85 (7) ◽  
pp. 735-739 ◽  
Author(s):  
Y. Rekah ◽  
D. Shtienberg ◽  
J. Katan
Keyword(s):  
Fusarium Oxysporum ◽  
Root Rot ◽  
Selective Medium ◽  
Sampling Location ◽  
Susceptible Host ◽  
Growing Seasons ◽  
Tomato Field ◽  
Crown And Root Rot ◽  
Pathogen Populations

The saltcedar shrub Tamarix nilotica grows as a weed in the Arava region of Israel. This weed is commonly found in cultivated fields naturally infested with Fusarium oxysporum f. sp. radicis-lycopersici, the causal agent of tomato crown and root rot. Young bushes, 20 to 40 cm tall, were randomly uprooted from different fields. The roots were cut into segments which were placed on Fusarium-selective medium. Although the plants did not show any symptoms of disease, the roots of the shrub were colonized by the pathogen. The incidence of infected saltcedar plants and level of root colonization by F. oxysporum f. sp. radicis-lycopersici decreased with increasing distance of the sampling location from a tomato field infected with crown and root rot. F. oxysporum f. sp. radicis-lycopersici was also isolated from chaff of inflorescence samples taken from mature T. nilotica shrubs. Identity of the pathogen isolates obtained from T. nilotica roots and chaff samples was verified by pathogenicity and vegetative compatibility tests. Roots of T. nilotica plants sown under greenhouse conditions in soil naturally infested with F. oxysporum f. sp. radicis-lycopersici became colonized by the pathogen. Uprooting and removing saltcedar plants throughout the season from fields not cultivated with tomatoes lowered the inoculum density of F. oxysporum f. sp. radicis-lycopersici in the soil from 611 to 6 and from 176 to 10 CFU/g of soil in the 1998-99 and 1999-2000 growing seasons, respectively. These results demonstrate that T. nilotica may contribute to the buildup of the pathogen populations in the absence of a susceptible host. Colonization of saltcedar by F. oxysporum f. sp. radicis-lycopersici is an additional mechanism for survival of this pathogen in the fields and for dissemination through the spread of infested seed or chaff of T. nilotica.

Susceptibility assessment of bell pepper genotypes to crown and root rot disease

2013 ◽  
Vol 47 (8) ◽  
pp. 944-953 ◽  
Author(s):  
Mehdi Nasr Esfahani ◽  
Abbas Nasehi ◽  
Pegah Rahmanshirazi ◽  
Hajar Ghadirian ◽  
Farnaz Abed Ashtiani
Keyword(s):  
Root Rot ◽  
Bell Pepper ◽  
Susceptibility Assessment ◽  
Root Rot Disease ◽  
Crown And Root Rot ◽  
Rot Disease

scholarly journals First Report of Fusarium Wilt of Lettuce Caused by Fusarium oxysporum f. sp. lactucae in Arizona

Plant Disease ◽  
2003 ◽  
Vol 87 (10) ◽  
pp. 1265-1265 ◽  
Author(s):  
M. E. Matheron ◽  
S. T. Koike
Keyword(s):  
Fusarium Oxysporum ◽  
Root Rot ◽  
The United States ◽  
San Joaquin Valley ◽  
Fluorescent Light ◽  
Lettuce Seedling ◽  
Disease Symptoms ◽  
First Report ◽  
Root Rot Disease ◽  
Rot Disease

A new wilt and root rot disease was observed in 6 and 11 commercial fields of lettuce (Lactuca sativa) in western Arizona during the fall of 2001 and 2002, respectively. Distance between infested sites ranged from approximately 0.5 to 39 km. Five head lettuce cultivars as well as a red leaf lettuce cultivar were affected. Disease symptoms included yellowing and wilting of leaves, as well as stunting and plant death. The cortex of the crown and upper root of infected plants usually was decayed and reddish brown. Disease symptoms first appeared at the time of plant thinning and continued to develop up to plant maturity. Fusarium oxysporum was consistently isolated from symptomatic plant roots. Seeds of cv. Lighthouse were planted in nonsterile vermiculite within 3.0-cm-square × 7.0-cm-deep cells in a transplant tray and thinned to a single plant per cell. When the first true leaves were emerging, 10 individual seedlings were inoculated with a single-spore isolate of F. oxysporum recovered from diseased lettuce root cortex tissue. Inoculum was prepared by growing the fungus on potato dextrose agar in 100-mm-diameter × 15-mm-deep plastic petri dishes at 28°C with a 12-h photoperiod under fluorescent light. Once the fungus completely covered the agar surface, 50 ml of sterile distilled water was added to the dish, and the mycelia and conidia on the surface were scraped off the agar and suspended in the water. This fungal suspension was decanted, and a 2-ml aliquot containing 1.8 × 105 CFU was pipetted into the vermiculite near the stem of each lettuce seedling. Ten plants grown in noninfested vermiculite served as uninoculated controls. After inoculation, plants were maintained in a growth chamber at 28°C with a 12-h photoperiod under fluorescent light for 3 weeks. Symptoms of yellowing, wilt, vascular decay, and often plant death developed during the incubation period on all inoculated plants but not on control plants. Fusarium oxysporum was consistently reisolated from inoculated plants but not from uninoculated plants. The experiment was repeated and yielded the same results. A wilt and root rot disease of lettuce attributed to F. oxysporum f. sp. lactucae was first reported in Japan in 1967 (3) and subsequently in the United States (San Joaquin Valley of California) in 1993 (2), and Italy in 2002 (1). The researchers of the U.S. report did not cite the earlier work from Japan and described the pathogen as F. oxysporum f. sp. lactucum. The Arizona isolate used to demonstrate pathogenicity was of the same vegetative compatibility group as an isolate of the pathogen from lettuce in California reported in 1993. Several companies grow and harvest lettuce in Arizona and California. At the end of production and harvest in the fall, tractors, implements, and harvesting equipment are transported from the San Joaquin Valley in California to western Arizona. The similarity between the isolate of F. oxysporum f. sp. lactucae from western Arizona and the San Joaquin Valley of California suggest a possible introduction of the pathogen into Arizona from California, perhaps on soil adhering to farm equipment. To our knowledge, this is the first report of F. oxysporum f. sp. lactucae infecting lettuce in Arizona. References: (1) A. Garibaldi et al. Plant Dis. 86:1052, 2002. (2) J. C. Hubbard and J. S. Gerik. Plant Dis. 77:750, 1993. (3) T. Matuo and S. Motohashi. Trans. Mycol. Soc. Jpn. 8:13, 1967.

scholarly journals Occurrence and isolation of some Fusarium species associated with crown and root rot disease in some wheat fields of Duhok, IKR, Iraq

2018 ◽  
Vol 2ndInt.Conf.AGR (Special Issue) ◽  
pp. 331-342
Author(s):  
Bareen Sidqi Shareef Al-Tovi Al-Tovi ◽  
◽  
Raed Abduljabbar Haleem Haleem ◽  
Keyword(s):  
Root Rot ◽  
Fusarium Species ◽  
Root Rot Disease ◽  
Crown And Root Rot ◽  
Rot Disease

scholarly journals Effectiveness of different substrate materials to prepare Trichoderma harzianum based bio-fungicides to control foot and root rot (Fusarium oxysporum) of tomato

2015 ◽  
Vol 40 (2) ◽  
pp. 279-289 ◽  
Author(s):  
MI Faruk ◽  
ML Rahman ◽  
MM Rahman ◽  
R Islam ◽  
MA Rahman
Keyword(s):  
Fusarium Oxysporum ◽  
Rice Bran ◽  
Wheat Bran ◽  
Trichoderma Harzianum ◽  
Root Rot ◽  
Root Weight ◽  
Grass Pea ◽  
Tomato Seedling ◽  
Root Rot Disease ◽  
Rot Disease

An investigation was undertaken to evaluate the effectiveness Trichoderma harzianum based bio-fungicides multiplied on different substrates. The substrates was rice bran, wheat bran, grass pea bran and their combinations with mustard oilcake (MOC) were used to mass culture T. harzianum for the management of foot and root rot disease of tomato seedling caused by Fusarium oxysporum in seedbed. All combinations of carrier materials were found effective for preparing T. harzianum based bio-fungicides to promote germination, seedling growth and reducing pre-emergence and post-emergence mortality of tomato seedling under F. oxysporum inoculated seedbed soils. The shoot length, shoot weight, root length and root weight of tomato seedling were enhanced significantly by the application of different substrate materials of T. harzianum based bio-fungicides under F. oxysporum inoculated seedbed conditions. The individual (rice bran, wheat bran, grass pea bran) and combination of substrates (rice bran + wheat bran, rice bran + mustard oilcake, rice bran + wheat bran + MOC and wheat bran + grass pea bran + MOC) were equally suitable for mass culturing of effective T. harzianum bio-fungicides for the management of foot and root rot disease of tomato seedling in seedbed condition.Bangladesh J. Agril. Res. 40(2): 279-289 June 2015

scholarly journals An Endophytic Strain of Bacillus amyloliquefaciens Suppresses Fusarium oxysporum Infection of Chinese Wolfberry by Altering Its Rhizosphere Bacterial Community

2022 ◽  
Vol 12 ◽  
Author(s):  
Constantine Uwaremwe ◽  
Liang Yue ◽  
Yun Wang ◽  
Yuan Tian ◽  
Xia Zhao ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Fusarium Oxysporum ◽  
Root Rot ◽  
Bacillus Amyloliquefaciens ◽  
Fungal Pathogens ◽  
Metagenomic Sequencing ◽  
Lycium Barbarum ◽  
Root Rot Disease ◽  
Rot Disease ◽  
Biocontrol Strain

Root rot disease is a serious infection leading to production loss of Chinese wolfberry (Lycium barbarum). This study tested the potential for two bacterial biological control agents, Bacillus amyloliquefaciens HSB1 and FZB42, against five fungal pathogens that frequently cause root rot in Chinese wolfberry. Both HSB1 and FZB42 were found to inhibit fungal mycelial growth, in vitro and in planta, as well as to promote the growth of wolfberry seedlings. In fact, a biocontrol experiment showed efficiency of 100% with at least one treatment involving each biocontrol strain against Fusarium oxysporum. Metagenomic sequencing was used to assess bacterial community shifts in the wolfberry rhizosphere upon introduction of each biocontrol strain. Results showed that HSB1 and FZB42 differentially altered the abundances of different taxa present and positively influenced various functions of inherent wolfberry rhizosphere bacteria. This study highlights the application of biocontrol method in the suppression of fungal pathogens that cause root rot disease in wolfberry, which is useful for agricultural extension agents and commercial growers.

Sign in / Sign up

Export Citation Format

Share Document