scholarly journals Curvatures and Malformations in Bean Plants Caused by Culture Filtrate of Aspergillus niger.

1958 ◽  
Vol 33 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Roy W. Curtis
Keyword(s):  
Aspergillus Niger ◽  
Culture Filtrate ◽  
Bean Plants

scholarly journals Aspergillus niger Culture Filtrate (ACF) Mediated Biocontrol of Enteric Pathogens in Wastewater

Water ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 119
Author(s):  
Suja Subhash ◽  
Pradeesh Babu ◽  
Amrutha Vijayakumar ◽  
Reshma Alookaran Suresh ◽  
Ajith Madhavan ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Aspergillus Niger ◽  
Culture Filtrate ◽  
Sewage Treatment ◽  
Enteric Pathogens ◽  
Shigella Dysenteriae ◽  
Microbial Dynamics ◽  
Egg Hatch ◽  
Log Reduction ◽  
Viability Assay

Robust control of pathogens in sewage facilitates safe reuse of wastewater rich in valuable nutrients for potential valorization through biological means. Aspergillus niger is widely reported in bioremediation of wastewater but studies on control of enteric pathogens in sewage are very sparse. So, this study aimed at exploring the antibacterial and nematicidal activity of A. niger culture filtrate (ACF). Antibacterial activity of ACF on enteric pathogens (Klebsiella pneumoniae, Pseudomonas aeruginosa, Vibrio cholerae, Salmonella enterica, Shigella dysenteriae, Escherichia coli, Staphylococcus aureus, Klebsiella variicola) was determined by spectrophotometric growth analysis, resazurin based viability assay and biofilm formation assay. ACF showed inhibition against all enteric pathogens except Pseudomonas aeruginosa. Nematicidal studies on Caenorhabditis elegans showed 85% egg hatch inhibition and 52% mortality of L1 larvae. Sewage treatment with ACF at 1:1 (v/v) showed 2–3 log reduction in coliforms, Klebsiella, Shigella, Salmonella, S. aureus and Vibrio except Pseudomonas, indicating significant alteration of complex microbial dynamics in wastewater. Application of ACF can potentially be used as a robust biocontrol strategy against infectious microbes in wastewater and subsequent valorization by cultivating beneficial Pseudomonas.

scholarly journals 636 PB337 POLYGALACTURONASE INHIBITOR IN BEAN PODS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 523f-523
Author(s):  
Russell Pressey ◽  
Richard B. Russell
Keyword(s):  
Disease Resistance ◽  
Aspergillus Niger ◽  
Ammonium Sulfate ◽  
Plant Tissues ◽  
Fruit Maturation ◽  
High Ph ◽  
Dicotyledonous Plant ◽  
Bean Cultivar ◽  
Bean Plants

Polygalacturonase inhibitors have been reported in a number of dicotyledonous plant tissues including pear and raspberry fruits and bean seedlings. These proteins inhibit fungal polygalacturonases and thus have been implicated in disease resistance in plants. The earlier work on the inhibitor from bean plants was conducted with hypocotyls as the source. We have found that immature bean pods contain much more inhibitor than other parts of the plant and developed a procedure for purification of this inhibitor. Fresh bean pods were extracted with 1.0 M NaCl at pH 7 and the proteins were precipitated with ammonium sulfate. The proteins were dissolved, dialyzed and chromatographed on a column of S-Sepharose. The inhibitor from this step was then chromatographed on a Mono Q column at high pH. Yields of the inhibitor varied somewhat with bean cultivar and pod maturity but were about ten times higher than from hypocotyls. The purified inhibitor reacted optimally with Aspergillus niger endopolygalacturonase at pH 4.3 and appeared to be similar to the inhibitor from hypocotyls. Bean pods thus are a convenient source of polygalacturonase inhibitor for studies on fruit maturation and disease resistance in plants.

Bioleaching of Nickel and Cobalt from Lateritic Chromite Overburden Using the Culture Filtrate of Aspergillus niger

2013 ◽  
Vol 170 (7) ◽  
pp. 1547-1559 ◽  
Author(s):  
Supratim Biswas ◽  
Rajib Dey ◽  
Siddhartha Mukherjee ◽  
Pataki C. Banerjee
Keyword(s):  
Aspergillus Niger ◽  
Culture Filtrate ◽  
Chromite Overburden

scholarly journals The potential use of the culture filtrate of an Aspergillus niger strain in the management of fungal diseases of grapevine

2020 ◽  
Vol 21 (4) ◽  
pp. 839-850
Author(s):  
Xénia Pálfi ◽  
Zoltán Karácsony ◽  
Anett Csikós ◽  
Ottó Bencsik ◽  
András Szekeres ◽  
...  
Keyword(s):  
Aspergillus Niger ◽  
Culture Filtrate ◽  
Fungal Diseases ◽  
Potential Use

scholarly journals Effect of Botrytis cinerea infection and elicitation on ß-1,3-glucanase and chitinase activity in bean leaves and cell cultures

2013 ◽  
Vol 47 (2) ◽  
pp. 63-71 ◽  
Author(s):  
Elżbieta Kuźniak ◽  
Henryk Urbanek ◽  
Aneta Michalak ◽  
Katarzyna Herka
Keyword(s):  
Botrytis Cinerea ◽  
Cell Cultures ◽  
Culture Filtrate ◽  
Chitinase Activity ◽  
Intact Plants ◽  
Culture Filtrates ◽  
Bean Plants ◽  
Bean Leaves

The activity of ß-1,3-glucanase and chitinase in bean plants treated with <i>B. cinerea</i> products or/and infected and in cell cultures after application of fungal products has been studied. <i>Botrytis cinerea</i> infection and culture filtrates, ethanol precipitates, glucan and conidial extract treatment markedly enhanced the activity of both hydrolases. Cell cultures treated with <i>B.cinerea</i> products reacted similarly to intact plants. In plants pretreated with 2-day culture filtrate and conidial extract and then infected, ß-1,3-glucanase and chitinase were induced stronger than after infection without pretreatment.

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