scholarly journals Structural elucidation and antimicrobial activity of new phencomycin derivatives isolated from Burkholderia glumae strain 411gr-6

2014 ◽  
Vol 67 (10) ◽  
pp. 721-723 ◽  
Author(s):  
Jae-Woo Han ◽  
Jeong-Do Kim ◽  
Jung-Min Lee ◽  
Jong-Hyun Ham ◽  
Dongho Lee ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Structural Elucidation ◽  
Burkholderia Glumae

Synthesis of stannic(IV) complexes: Their structural elucidation in solid and solution state and antimicrobial activity

2007 ◽  
Vol 18 (6) ◽  
pp. 664-674 ◽  
Author(s):  
Saira Shahzadi ◽  
Saqib Ali ◽  
Klaus Wurst ◽  
Muhammad Najam-ul-Haq
Keyword(s):  
Antimicrobial Activity ◽  
Structural Elucidation ◽  
Solution State

scholarly journals Harnessing Pseudomonas protegens to Control Bacterial Panicle Blight of Rice

2020 ◽  
Vol 110 (10) ◽  
pp. 1657-1667
Author(s):  
Laura Ortega ◽  
Katherine A. Walker ◽  
Casey Patrick ◽  
Yeshi Wamishe ◽  
Alejandro Rojas ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Developmental Stages ◽  
In Planta ◽  
Burkholderia Glumae ◽  
Continuous Increase ◽  
Disease Symptoms ◽  
Seedborne Disease ◽  
Antagonistic Microorganisms ◽  
Panicle Blight

Bacterial panicle blight of rice is a seedborne disease caused by the bacterium Burkholderia glumae. This disease has affected rice production worldwide and its effects are likely to become more devastating with the continuous increase in global temperatures, especially during the growing season. The bacterium can cause disease symptoms in different tissues and at different developmental stages. In reproductive stages, the bacterium interferes with grain development in the panicles and, as a result, directly affects rice yield. Currently, there are no methods to control the disease because chemical control is not effective and completely resistant cultivars are not available. Thus, a promising approach is the use of antagonistic microorganisms. In this work, we identified one strain of Pseudomonas protegens and one strain of B. cepacia with antimicrobial activity against B. glumae in vitro and in planta. We further characterized the antimicrobial activity of P. protegens and found that this activity is associated with bacterial secretions. Cell-free secretions from P. protegens inhibited the growth of B. glumae in vitro and also prevented B. glumae from causing disease in rice. Although the specific molecules associated with these activities have not been identified, these findings suggest that the secreted fractions from P. protegens could be harnessed as biopesticides to control bacterial panicle blight of rice.

scholarly journals Synthesis and antimicrobial activity of new 3,5-diarylidene-4-piperidone derivatives

2016 ◽  
Vol 81 (8) ◽  
pp. 859-870 ◽  
Author(s):  
Kulathooran Singaram ◽  
Dhamodaran Marimuthu ◽  
Selvakumar Baskaran ◽  
Venkataraman Ramaswamy
Keyword(s):  
Antimicrobial Activity ◽  
Antifungal Activity ◽  
Aspergillus Niger ◽  
Aspergillus Fumigatus ◽  
Structural Elucidation ◽  
Spectroscopic Methods ◽  
Microbial Strains

Three series of heteroaromatic analogs (twenty seven compounds) with monoketone linkers have been synthesized and evaluated for their antimicrobial activity against six microbial strains. Among them, 3,5-dibenzylidene-1-(3,5-dichloro-2-hydroxyphenylsulfonyl)piperidin-4-one 5e showed best antifungal activity against Aspergillus niger and Aspergillus fumigatus. Structural elucidation of the synthesized compounds was determined on the basis of various spectroscopic methods.

Labdane diterpenes from the marine pulmonate gastropod Trimusculus peruvianus

1996 ◽  
Vol 74 (12) ◽  
pp. 2471-2475 ◽  
Author(s):  
Aurelio San-Martín ◽  
Elías Quezada ◽  
Pilar Soto ◽  
Juana Rovirosa ◽  
Yolanda Palacios
Keyword(s):  
Antimicrobial Activity ◽  
Spectral Analysis ◽  
Key Words ◽  
Structural Elucidation ◽  
Central Chile ◽  
Marine Mollusk ◽  
Marine Gastropod ◽  
Gastropod Mollusk ◽  
Pulmonate Gastropod

The marine gastropod mollusk Trimusculus peruvianus collected on the coast of Central Chile yielded four new labdane metabolites. The structural elucidation of all compounds was accomplished by spectral analysis. One diterpenoid showed modest antimicrobial activity. Key words: Trimusculus peruvianus, labdanes, marine mollusk.

The synthesis, structural elucidation and antimicrobial activity of 2- and 4-substituted-coumarinyl chalcones

2016 ◽  
Vol 54 (7) ◽  
pp. 610-617 ◽  
Author(s):  
Thrineshen Moodley ◽  
Mehbub Momin ◽  
Chunderika Mocktar ◽  
Christina Kannigadu ◽  
Neil A. Koorbanally
Keyword(s):  
Antimicrobial Activity ◽  
Structural Elucidation
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