Short Communication | 28-December-2016
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, Volume 65 , ISSUE 4, 461–464
original-paper | 31-May-2021
thinghirensis strain TG26
99.62
4
Streptomyces sp. strain HM4 (Actino5)
Streptomyces sp. E4N275g
99.46
5
Streptomyces sp. strain HM6 (Actino8)
Streptomyces sp. SYP-A7193
99.23
6
Streptomyces panayensis strain HM7 (Actino9)
Streptomyces panayensis
99.54
7
Streptomyces sp. strain HM8 (ActinoMS9)
Streptomyces sp. strain 16K303
99.46
8
Streptomyces tricolor strain HM10 (Actino12)
Streptomyces tricolor strain AS 4.1867
99.77
Screening Streptomyces isolates for their biocontrol activity. Fungal
MEDHAT REHAN,
ABDULLAH S. ALSOHIM,
HUSSAM ABIDOU,
ZAFAR RASHEED,
WALEED AL ABDULMONEM
Polish Journal of Microbiology, Volume 70 , ISSUE 2, 245–256
Original Paper | 26-August-2016
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, Volume 65 , ISSUE 3, 319–329
Original Paper | 07-June-2016
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, Volume 65 , ISSUE 2, 171–176
Research Article | 03-September-2018
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, Volume 50 , ISSUE 2, 79–90
Research Article | 22-May-2019
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, Volume 56 , ISSUE 4, 405–415
Mini Review | 26-August-2016
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, Volume 65 , ISSUE 3, 243–251
research-article | 17-March-2020
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, Volume 52 , 1–17
research-article | 30-November-2019
organisms (San-Blas et al., 2015), which are currently available in small quantities for biological control programs (San-Blas, Luzardo, Larreal, Portillo and Bastidas, 2017, San-Blas, Luzardo, Portillo, Fuenmayor and Bastidas, 2017) and production of these biocontrol agents is expected to rise shortly (San-Blas et al., 2019).
Currently, the growing interest in controlling hemipterans such as PHM has led to experiments aimed at controlling several species using EPN. For example, Dysmicoccus vaccinn
Yvan Fuenmayor,
Edgar Portillo,
Brynelly Bastidas,
Mayamarú Guerra,
Ernesto San-Blas
Journal of Nematology, Volume 52 , 1–7
Research Article | 31-May-2018
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, Volume 50 , ISSUE 1, 27–32
original-paper | 31-October-2019
MD. ABDUL HANNAN,
MD. MAHBUBUR RAHMAN,
MD. NURUNNABI MONDAL,
DEB SUZAN CHANDRA,
GAZLIMA CHOWDHURY,
MD. TOFAZZAL ISLAM
Polish Journal of Microbiology, Volume 68 , ISSUE 4, 429–438
minireview | 21-June-2021
include bacteria such as Streptomyces venezuelae, Gluconacetobacter diazotrophicus, Burkholderia sp., Azospirillum brasilense, P. protegens, Pseudomonas putida, among others. Most of these formulations have been traded to promote plant growth and not fight plant pathogens (Cesa-Luna et al. 2020). Therefore, little efforts have been focused on applying of bacteriocins for plant disease biocontrol, and hence their production by PGPR is poorly understood.
Some examples of bacteriocins applied to
CATHERINE CESA-LUNA,
JULIA-MARÍA ALATORRE-CRUZ,
RICARDO CARREÑO-LÓPEZ,
VERÓNICA QUINTERO-HERNÁNDEZ,
ANTONINO BAEZ
Polish Journal of Microbiology, Volume 70 , ISSUE 2, 143–159
Article | 24-July-2017
LUIS G. LEITE,
DAVID I. SHAPIRO-ILAN,
SELCUK HAZIR,
MARK A. JACKSON
Journal of Nematology, Volume 48 , ISSUE 2, 126–133
short-communication | 19-March-2021
increased their resistance to several agrochemicals used to fight them (Sparks and Lorsbach 2017), so they have become less effective. Therefore, the use of alternative plant protection biocontrol methods has been intensively explored during the last decades. Biocontrol methods include both preparations containing living microorganisms and bioactive metabolites obtained from organic or aqueous extracts of different taxa, which may be specific to those that need to be controlled and have low toxicity to
DAISY PINEDA-SUAZO,
JOSAPHAT MIGUEL MONTERO-VARGAS,
JOSÉ JUAN ORDAZ-ORTIZ,
GERARDO VÁZQUEZ-MARRUFO
Polish Journal of Microbiology, Volume 70 , ISSUE 1, 131–136
research-article | 30-November-2018
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, Volume 51 , 1–5
research-article | 30-November-2018
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, Volume 51 , 1–8
research-article | 19-March-2020
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, Volume 52 , 1–17
original-paper | 28-June-2019
-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, Volume 68 , ISSUE 2, 193–201
short-communication | 05-July-2019
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, Volume 68 , ISSUE 2, 185–191
research-article | 06-March-2020
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, Volume 52 , 1–8
Article | 21-July-2017
, 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, Volume 49 , ISSUE 1, 77–85
research-article | 01-April-2021
for use of EPNs in biological controlling programs was reviewed by Shapiro-Ilan et al. (2006). Also, application of EPNs for biocontrol of insect pests at above and below ground; and their commercialization were reviewed by Lacey and Georgis (2012). The family Rhabditidae (Örley, 1880) is one of the richest groups of free-living nematodes that are found in all kinds of habitats including decaying bacteria-rich substances such as decaying plants and cadavers or are associated with different animals
Reihaneh Gholami Ghavamabad,
Ali Asghar Talebi,
Mohammad Mehrabadi,
Mohammad Ebrahim Farashiani,
Majid Pedram
Journal of Nematology, Volume 53 , 1–16