Bacillomycin D inhibits growth of Rhizopus stolonifer and induces defense-related mechanism in cherry tomato

The soft rot disease caused by Rhizopus stolonifer is an important disease in cherry tomato fruit. In this study, the effect of iturin A on soft rot of cherry tomato and its influence on the storage quality of cherry tomato fruit were investigated. The results showed that 512 μg/mL of iturin A could effectively inhibit the incidence of soft rot of cherry tomato fruit. It was found that iturin A could induce the activity of resistance-related enzymes including phenylalanine ammonia lyase (PAL), polyphenol oxidase (PPO), peroxidase (POD), glucanase (GLU), and chitinase (CHI), and active oxygen-related enzymes including ascorbate peroxidases (APX), superoxide dismutases (SOD), catalases (CAT), and glutathione reductase (GR) of cherry tomato fruit. In addition, iturin A treatment could slow down the weight loss of cherry tomato and soften the fruit. These results indicated that iturin A could retard the decay and improve the quality of cherry tomato fruit by both the inhibition growth of R. stolonifera and the inducing the resistance.

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Rhizopus Soft Rot on Cherry Tomato Caused by Rhizopus stolonifer in Korea

Mycobiology ◽

10.1080/12298093.2001.12015783 ◽

2001 ◽

Vol 29 (3) ◽

pp. 176-178 ◽

Cited By ~ 11

Author(s):

Jin-Hyeuk Kwon ◽

Soo-Woong Kang ◽

Jeong-Soo Kim ◽

Chang-Seuk Park

Keyword(s):

Soft Rot ◽

Cherry Tomato ◽

Rhizopus Stolonifer

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ANTIFUNGAL EFFICACY OF SOME INDIGENOUS PLANTS EXTRACT AGAINST RHIZOPUS STOLONIFER, THE CAUSAL AGENT OF WET ROT DISEASE OF POTATO (SOLANUM TUBEROSUM)

Journal of Medicinal Botany ◽

10.25081/jmb.2018.v2.953 ◽

1970 ◽

pp. 01

Author(s):

Tijjani Ahmadu ◽

Abdulaziz Bashir Kutawa ◽

Jafar Sani Adam ◽

Muhammad Abdulhadi ◽

Mohammed Iliya

Keyword(s):

Solanum Tuberosum ◽

West African ◽

Control Treatment ◽

Syzygium Aromaticum ◽

Rhizopus Stolonifer ◽

Indigenous Plants ◽

Piper Guineense ◽

Mycelia Growth ◽

Rot Disease ◽

Plants Extract

Potato, (Solanum tuberosum (L.)) is a valuable stable food grown for its edible starchy tuber. This work was aimed to test the efficacy of indigenous plants extract for controlling wet rot disease of potato caused by Rhizopus stolonifer. The fungi was isolated from decaying bread and grown on potato dextrose agar (PDA) plates. Ripe Ginger (Zingiber officinale) (rhizome), West African pepper (Piper guineense) flower, Clove (Syzygium aromaticum) seed were collected from Muda Lawal Market, Bauchi, Nigeria. The dried seed were grinded using blender to get ginger, clove and West African pepper powder. Radial mycelia growth of Rhizopus stolonifer varied significantly (p≤0.01) with the application of different plant extracts. Mycelia growth of Rhizopus stolonifer was found to be low in potatoes treated with West African pepper (0.26 cm) than those treated with ginger (0.32 cm) and clove (0.33 cm). However, as observed from the result, ginger and clove did not differ statistically in their effect on Rhizopus mycelia growth (in vitro) but showed a better effect than the control treatment (0.40 cm). Inhibition of the mycelia growth by the West African pepper seed extract is an indication that it is fungicidal.

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Diseases of the kumara crop

New Zealand Plant Protection ◽

10.30843/nzpp.2009.62.4845 ◽

2009 ◽

Vol 62 ◽

pp. 402-402

Author(s):

S.L. Lewthwaite ◽

P.J. Wright

Keyword(s):

Fungal Pathogens ◽

Ipomoea Batatas ◽

Mechanical Damage ◽

Soft Rot ◽

Economic Loss ◽

Root Surface ◽

Black Rot ◽

Rhizopus Stolonifer ◽

Ceratocystis Fimbriata ◽

Pink Rot

The predominant diseases of the commercial kumara (Ipomoea batatas) or sweetpotato crop are caused by fungal pathogens The field disease pink rot results from infection by the fungus Sclerotinia sclerotiorum Lesions form on vines but may spread down stems to the roots The widespread nature of this disease in sweetpotato appears peculiar to New Zealand Scurf is a disease caused by Monilochaetes infuscans which occurs in the field but may proliferate amongst stored roots The disease causes a superficial discolouration of the root surface which is mainly cosmetic but can also increase root water loss in storage Infection by Ceratocystis fimbriata produces a disease known as black rot The disease can be transmitted amongst plants at propagation but is particularly rampant amongst roots in storage This disease is readily transmitted and can cause severe economic loss Fusarium oxysporum causes surface rots in stored roots characterised by light to dark brown lesions that tend to be firm dry and superficial The lesions may be circular and centred on wounds caused by insects or mechanical damage at harvest Soft rot caused by Rhizopus stolonifer generally occurs in roots after they are washed and prepared for the market Fungal infection occurs through wounds or bruised tissue producing distinctive tufts of white fungal strands and black spores

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Effect of carbon source on Phenobarbital metabolism by Rhizopus stolonifer

International Journal of Pharmaceutical Sciences and Nanotechnology ◽

10.37285/ijpsn.2010.3.2.17 ◽

2010 ◽

Vol 3 (2) ◽

pp. 1022-1027

Author(s):

Kavitha K ◽

Asha S ◽

Hima Bindu T.V.L ◽

Vidyavathi M

Keyword(s):

Carbon Source ◽

High Performance ◽

Carbon Sources ◽

In Vitro Models ◽

Rhizopus Stolonifer ◽

Safety And Efficacy ◽

Alternative Systems ◽

Toxicological Studies ◽

Microbial Model

The safety and efficacy of a drug is based on its metabolism or metabolite formed. The metabolism of drugs can be studied by different in vitro models, among which microbial model became popular. In the present study, eight microbes were screened for their ability to metabolize phenobarbital in a manner comparable to humans with a model to develop alternative systems to study human drug metabolism. Among the different microbes screened, a filamentous fungi Rhizopus stolonifer metabolized phenobarbital to its metabolite which is used for further pharmacological and toxicological studies. The transformation of phenobarbital was identified by high- performance liquid chromatography (HPLC). Interestingly, Rhizopus stolonifer sample showed an extra metabolite peak at 3.11min. compared to its controls. The influence of different carbon sources in media used for growth of fungus, on metabolite production was studied, to find its effect in production of metabolite as the carbon source may influence the growth of the cell.

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