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Short Communication

Expiration Date Prediction of Biocontrol Agent Prepared with Bacillus subtilis B579 Using the Accelerated Aging Method

The expiration date of biopesticidal products is an essential feature of their use and storage. In the present work, the expiration date of biocontrol agent was predicted using the accelerated aging method. The available bacteria in Bacillus subtilis B579 biocontrol agent were 3.7 ± 0.2 × 1011 CFU/g. It is calculated that the expiration date of the agent was about 17 months at 25°C. During this period, the available bacteria retained more than 90% of the value in the initial

Yu Zheng, Xiaoyang Jiao, Fang Chen, Xuelian Wang, Min Wang

Polish Journal of Microbiology , ISSUE 4, 461–464

Original Paper

Distribution and Identification of Endophytic Streptomyces Species from Schima wallichii as Potential Biocontrol Agents against Fungal Plant Pathogens

The prospective of endophytic microorganisms allied with medicinal plants is disproportionally large compared to those in other biomes. The use of antagonistic microorganisms to control devastating fungal pathogens is an attractive and eco-friendly substitute for chemi­cal pesticides. Many species of actinomycetes, especially the genus Streptomyces, are well known as biocontrol agents. We investigated the culturable community composition and biological control ability of endophytic

Ajit Kumar Passari, Vineet Kumar Mishra, Vijai Kumar Gupta, Ratul Saikia, Bhim Pratap Singh

Polish Journal of Microbiology , ISSUE 3, 319–329

Original Paper

Biocontrol of Gray Mold Decay in Pear by Bacillus amyloliquefaciens Strain BA3 and its Effect on Postharvest Quality Parameters

The economic losses caused by postharvest fruits diseases have attracted global attention. Traditional chemical fungicide could not meet the need of humans. In recent years, microbial agent which has begun to take the place of chemical fungicide comes into people’s vision. The aim of this paper was to investigate the potential of Bacillus amyloliquefaciens strain BA3 for its biocontrol capability on gray mold decay of pears and its effect on postharvest quality of pears. Compared with

Hui Qu, Longyu Zhao, Fengchun Zhao, Yufang Liu, Zhengyou Yang

Polish Journal of Microbiology , ISSUE 2, 171–176

Research Article

An Agent-Based Metapopulation Model Simulating Virus-Based Biocontrol of Heterodera Glycines

With recently discovered soybean cyst nematode (SCN) viruses, biological control of the nematodes is a theoretical possibility. This study explores the question of what kinds of viruses would make useful biocontrol agents, taking into account evolutionary and population dynamics. An agent-based model, Soybean Cyst Nematode Simulation (SCNSim), was developed to simulate within-host virulence evolution in a virus-nematode-soybean ecosystem. SCNSim was used to predict nematode suppression under a

Safyre Anderson, Chinmay Soman, Sadia Bekal, Leslie Domier, Kris Lambert, Kaustubh Bhalerao

Journal of Nematology , ISSUE 2, 79–90

Research Article

NON-CONVENTIONAL YEAST METSCHNIKOWIA PULCHERRIMA AND ITS APPLICATION IN BIOTECHNOLOGY

Metschnikowia spp. are extensively studied “non-conventional” yeasts. Strains belonging to these genera are considered as non-pathogenic and safe. The unique properties of Metschnikowia spp. allow us to look at these microorganisms as a promising subject for evolutionary genetics, taxonomy, ecology, as well as a natural biocontrol agent in biotechnology. This article provides a synthesis of the systematics, morphology, ecology and physiology of Metschnikowia spp., with special

Ewelina Pawlikowska, Dorota Kręgiel

Postępy Mikrobiologii - Advancements of Microbiology , ISSUE 4, 405–415

Mini Review

Microbial Products and Biofertilizers in Improving Growth and Productivity of Apple – a Review

but mediate the process of producing crops and foods naturally. This method avoids the use of synthetic chemical fertilizers and genetically modified organisms to influence the growth of crops. In addition to their role in enhancing the growth of the plants, biofertilizers can act as biocontrol agents in the rhizosphere at the same time. Biofertilizers are very safe for human, animal and environment. The use of Azotobacter, Azospirillum, Pseudomonas, Acetobacter, Burkholderia, Bacillus

Walid Fediala Abd El-Gleel Mosa, Lidia Sas-Paszt, Mateusz Frąc, Paweł Trzciński

Polish Journal of Microbiology , ISSUE 3, 243–251

research-article

Fungal communities associated with Heterodera glycines and their potential in biological control: a current update

survival structures or cysts, which consist of the female bodies containing hundreds of eggs protected by a melanized layer of cuticle, are an important target stage for biocontrol. The eggs in cysts can survive up to 10 years or longer in soil and can produce viable and infective second-stage juvenile nematodes (J2) when conditions are favorable. Thus, reducing the egg numbers in cysts in soil will ensure significant reduction in nematode inoculum. The idea of using biological agents to control

Deepak Haarith, Kathryn E. Bushley, Senyu Chen

Journal of Nematology , 1–17

Research Article

Postembryonic Ventral Nerve Cord Development and Gonad Migration in Steinernema carpocapsae

Steinernema carpocapsae is an entomopathogenic nematode widely studied for its properties as a biocontrol agent in insect pest management and as a model for understanding bacterial symbioses. Less attention has been given to the development of specific anatomical structures within S. carpocapsae. A better understanding of entomopathogenic nematode development and anatomy may lead to improved biocontrol efficacy. We recently demonstrated that the neuroanatomy of S. carpocapsae IJs differs from

Hung Xuan Bui, Nathan E. Schroeder

Journal of Nematology , ISSUE 1, 27–32

original-paper

Molecular Identification of Vibrio alginolyticus Causing Vibriosis in Shrimp and Its Herbal Remedy

MD. ABDUL HANNAN, MD. MAHBUBUR RAHMAN, MD. NURUNNABI MONDAL, DEB SUZAN CHANDRA, GAZLIMA CHOWDHURY, MD. TOFAZZAL ISLAM

Polish Journal of Microbiology , ISSUE 4, 429–438

Article

The Effects of Nutrient Concentration, Addition of Thickeners, and Agitation Speed on Liquid Fermentation of Steinernema feltiae

LUIS G. LEITE, DAVID I. SHAPIRO-ILAN, SELCUK HAZIR, MARK A. JACKSON

Journal of Nematology , ISSUE 2, 126–133

research-article

Conspecific pheromone extracts enhance entomopathogenic infectivity

Entomopathogenic nematodes (EPNs) in the genera Heterorhabditis and Steinernema are potent biocontrol agents that are used to control a wide variety of economically important insect pests (Shapiro-Ilan et al., 2017, 2018). The nematodes occur naturally in the soil and kill arthropod hosts with the aid of symbiotic bacteria (Xenorhabdus spp. bacteria are associated with steinernematid nematodes and Photorhabdus spp. bacteria are associated with heterorhabditid nematodes). Despite the commercial

David I. Shapiro-Ilan, Fatma Kaplan, Camila Oliveira-Hofman, Paul Schliekelman, Hans T. Alborn, Edwin E. Lewis

Journal of Nematology , 1–5

research-article

Temporal expression patterns of Pasteuria spp. sporulation genes

limitation of host-specificity. Maintaining an heterogenous population of Pasteuria spores in a field setting may allow increased parasite fitness and efficacy as a biocontrol agent. In Bacillus spp. and other endospore formers, Sigma-G is active late in sporulation. It is expressed during the process of spore core and spore coat formation, and the formation of inner and outer forespore membranes (Fimlaid and Shen, 2015). We characterized Sigma-G as a maker to identify the final stage of sporulation and

Ruhiyyih Dyrdahl-Young, Weiming Hu, Peter DiGennaro

Journal of Nematology , 1–8

research-article

Natural occurrence and distribution of entomopathogenic nematodes (Steinernematidae, Heterorhabditidae) in Viti Levu, Fiji Islands

Entomopathogenic nematodes (EPNs) species belonging to the genera Steinernema Travassos, 1927 and Heterorhabditis Poinar, 1975 and their symbiotic bacteria from genera Xenorhabdus and Photorhabdus, respectively, are lethal parasites of soil inhibiting insects (Shapiro-Ilan et al., 2017). Globally, EPNs are being widely researched as promising biocontrol agents for wide range of agricultural pests (Lacey et al., 2015). Because of the increasing awareness of EPN as an effective non-chemical

Sumeet Kour, Uma Khurma, Gilianne Brodie, Selcuk Hazir

journal of nematology , 1–17

original-paper

An Investigation of Petrol Metabolizing Bacteria Isolated from Contaminated Soil Samples Collected from Various Fuel Stations

-naphthylamine. In this study, only 11% of isolated bacteria were naphthylamidase-positive. The ρ-nitrophenyl-nacetyl-β-D-glucosaminide (NAG) test was carried out to detect glucosaminidase enzyme, which hydrolyzes p-nitrophenyl substituted glycoside and releases ρ-nitrophenol. In our study, 33% of the isolates were found positive for glucosaminidase. Many studies have reported the use of glucosaminidase as biocontrol agents and in the production of important biological compounds (Scigelova and Crout 1999

FATIMA MUCCEE, SAMINA EJAZ

Polish Journal of Microbiology , ISSUE 2, 193–201

short-communication

Evaluation of The Pathogenic Potential of Insecticidal Serratia marcescens Strains to Humans

pathogenesis is the colonization of epithelial cells. After adhesion to the cells, the bacteria produce potential virulence factors, including extracellular toxins which are probably the most common factors of S. marcescens pathogenicity (Grimont and Grimont 2006). The pathogenicity of S. marcescens to insects makes these bacteria an interesting tool in the search of the new biological control preparation applied in plant protection. Liquid culture of S. marcescens had potential use as a biocontrol factor

EDYTA KONECKA, JOANNA MOKRACKA, SYLWIA KRZYMIŃSKA, ADAM KAZNOWSKI

Polish Journal of Microbiology , ISSUE 2, 185–191

research-article

Control of the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) larvae in laboratory using entomopathogenic nematodes from subtropical environment

essential biocontrol agents used for controlling insect pests (Grewal and Georgis, 1999). These EPNs are capable of penetrating and killing their hosts within 24–48 h of nematode invasion, which is caused by their mutualistic relationship with bacteria and of the genera Photorhabdus and Xenorhabdus that are carried in the intestine of Heterorhabditidae and Steinernematidae, respectively (Akhurst and Boemare, 1990; Husin, 2017). EPNs were reported to control T. absoluta but the use of sub-tropical EPN

Bonginkhosi E. Dlamini, Nelisiwe Dlamini, Michael T. Masarirambi, Nxumalo Kwanele A.

Journal of Nematology , 1–8

Article

Evaluation of Pochonia chlamydosporia and Purpureocillium lilacinum for Suppression of Meloidogyne enterolobii on Tomato and Banana

, when initial infestation level was low (500 nematode eggs per plant), but tested strains were not effective under a moderate infestation level (5,000 eggs per plant). Under all infestation levels tested in this work, gall and egg mass indexes (MI) did not differ from the untreated controls, bringing concerns related to the practical adoption of this control strategy by farmers. In our opinion, if the fungi P. chlamydosporia and P. lilacinum are to be used as biocontrol tools toward M

SILAS D. SILVA, REGINA M. D. G. CARNEIRO, MARCOS FARIA, DANIELA A. SOUZA, ROSE G. MONNERAT, ROGERIO B. LOPES

Journal of Nematology , ISSUE 1, 77–85

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