scholarly journals Benzyl and Phenyl Glucosinolates Are Metabolized by the Specific Plant Pathogen Alternaria Brassicicola but Not by the Generalist Fungal Pathogens Rhizoctonia Solani or Sclerotinia Sclerotiorum

2021 ◽  
Author(s):  
M. Soledade C. Pedras ◽  
Chintamani Thapa ◽  
Sajjad Hossain
Keyword(s):  
Carboxylic Acid ◽  
Rhizoctonia Solani ◽  
Sclerotinia Sclerotiorum ◽  
Plant Pathogen ◽  
Fungal Pathogens ◽  
Spectroscopic Characterization ◽  
Fungal Species ◽  
Alternaria Brassicicola ◽  
Metabolic Products

The metabolism of benzyl and phenyl glucosinolates by three phytopathogenic fungal species is investigated and established that <i>A. brassicicola </i>metabolized intact benzyl and phenyl glucosinolates and the corresponding desulfo derivatives. Syntheses and spectroscopic characterization of benzyl and phenyl desulfo-glucosinolates are reported. Phenylacetonitrile and benzylisothiocyanate are the first metabolic products of benzyl glucosinolate; benzyl isothiocyanate is further metabolized to 3-benzyl-2-thioxo-2,3-dihydrothiazolidine-4-carboxylic acid.

scholarly journals Benzyl and Phenyl Glucosinolates Are Metabolized by the Specific Plant Pathogen Alternaria Brassicicola but Not by the Generalist Fungal Pathogens Rhizoctonia Solani or Sclerotinia Sclerotiorum

2021 ◽  
Author(s):  
M. Soledade C. Pedras ◽  
Chintamani Thapa ◽  
Sajjad Hossain
Keyword(s):  
Carboxylic Acid ◽  
Rhizoctonia Solani ◽  
Sclerotinia Sclerotiorum ◽  
Plant Pathogen ◽  
Fungal Pathogens ◽  
Spectroscopic Characterization ◽  
Fungal Species ◽  
Alternaria Brassicicola ◽  
Metabolic Products

The metabolism of benzyl and phenyl glucosinolates by three phytopathogenic fungal species is investigated and established that <i>A. brassicicola </i>metabolized intact benzyl and phenyl glucosinolates and the corresponding desulfo derivatives. Syntheses and spectroscopic characterization of benzyl and phenyl desulfo-glucosinolates are reported. Phenylacetonitrile and benzylisothiocyanate are the first metabolic products of benzyl glucosinolate; benzyl isothiocyanate is further metabolized to 3-benzyl-2-thioxo-2,3-dihydrothiazolidine-4-carboxylic acid.

Synthesis and spectroscopic characterization of enantiopure protected trans-4-amino-1-oxyl-2,2,6,6-tetramethyl piperidine-3-carboxylic acid (trans β-TOAC)

2005 ◽  
Vol 46 (33) ◽  
pp. 5573-5576 ◽  
Author(s):  
Karen Wright ◽  
Augustin de Castries ◽  
Matthieu Sarciaux ◽  
Fernando Formaggio ◽  
Claudio Toniolo ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Spectroscopic Characterization

scholarly journals Crystallographic and spectroscopic characterization of (R)-O-acetylmandelic acid

2016 ◽  
Vol 72 (7) ◽  
pp. 901-903
Author(s):  
Cady Cirbes ◽  
Joseph M. Tanski
Keyword(s):  
Hydrogen Bonding ◽  
Carboxylic Acid ◽  
Mandelic Acid ◽  
Phenylacetic Acid ◽  
Spectroscopic Characterization ◽  
Acid Group ◽  
Intermolecular Hydrogen Bonding ◽  
Carboxylic Acid Group ◽  
Donor Acceptor

The title compound [systematic name: (R)-(−)-2-acetoxy-2-phenylacetic acid], C10H10O4, is a resolved chiral ester derivative of mandelic acid. The compound contains an acetate group and a carboxylic acid group, which engage in intermolecular hydrogen bonding, forming chains extending parallel to [001] with a short donor–acceptor hydrogen-bonding distance of 2.676 (2) Å.

Broadband dielectric spectroscopic characterization of the hydrolytic degradation of carboxylic acid-terminated poly(d,l-lactide) materials

Polymer ◽  
2007 ◽  
Vol 48 (7) ◽  
pp. 2022-2029 ◽  
Author(s):  
Mohammad K. Hassan ◽  
Jeffrey S. Wiggins ◽  
Robson F. Storey ◽  
Kenneth A. Mauritz
Keyword(s):  
Carboxylic Acid ◽  
Hydrolytic Degradation ◽  
Spectroscopic Characterization

scholarly journals Crystallographic and spectroscopic characterization of 4-nitro-2-(trifluoromethyl)benzoic acid and 4-nitro-3-(trifluoromethyl)benzoic acid

2019 ◽  
Vol 75 (4) ◽  
pp. 524-528
Author(s):  
George L. Diehl III ◽  
Lisa Je ◽  
Joseph M. Tanski
Keyword(s):  
Hydrogen Bonding ◽  
Carboxylic Acid ◽  
Benzoic Acid ◽  
Nitro Group ◽  
Spectroscopic Characterization ◽  
Acid Group ◽  
Carboxylic Acid Group ◽  
Donor Acceptor ◽  
Graph Set

The title compounds, both C8H4F3NO4, represent two isomers of nitro trifluoromethyl benzoic acid. The compounds each contain a nitro functionality para to the carboxylic acid group, with the trifluoromethyl substituent ortho to the acid group in the 2-isomer and ortho to the nitro group in the 3-isomer. The regiochemistry with respect to the trifluoromethyl group results in steric interactions that rotate the carboxylic acid group or the nitro group out of the aromatic plane in the 2- and 3-isomer, respectively. Each molecule engages in intermolecular hydrogen bonding, forming head-to-tail dimers with graph-set notation R 2 2(8) and donor–acceptor hydrogen-bonding distances of 2.7042 (14) Å in the 2-isomer and 2.6337 (16) in the 3-isomer. Recrystallization attempts did not yield untwinned crystals.

scholarly journals Molecular characterization of fungi associated with stored soybean (Glycine max L) seeds

2020 ◽  
Vol 36 (2) ◽  
pp. 27-32
Author(s):  
C.G. Ikechi-Nwogu ◽  
F.C. Okene
Keyword(s):  
Fungal Pathogens ◽  
Fungal Species ◽  
Molecular Techniques ◽  
Local Alignment ◽  
Post Harvest ◽  
High Quality Protein ◽  
Search Tool ◽  
Food And Feed ◽  
Glycine Max L

Soybean is an important legume that has high quality protein and oil for food and feed. Despite the importance of this legume, the crop is affected by several post-harvest diseases caused by fungi. A study was carried out to identify the fungal species associated with the seeds of soybean using molecular techniques. The DNA of the isolate, was molecularly characterized using Internal Transcribed Spacer 1 (ITS-1) molecular marker. The isolate DNA sequence, was aligned using the Basic Local Alignment Search Tool for nucleotide (BLASTN) 2.8.0 version of the National Center for Biotechnology Information (NCBI) database. The results showed that the isolate sequence was 98% identical to Diaporthe spp. Voucher VP51, 98% identical to Diaporthe schini isolate L5N71 and 98% identical to Diaporthe schini strain B125. These findings showed that Diaporthe spp. is one of the causal fungal pathogens of post-harvest diseases of soybean seeds. It is anticipated that these results will provide information on culturing Diaporthe species also provide the basis for further study to show their antibiotic and anti-cancerous, enzymes and secondary metabolites producing ability. Keywords: Soybean, Diaporthe schini and RBCL marker

scholarly journals Isolation and Identification of Fungal Pathogens Associated with Diseases of Onion Crop in District Swat, Pakistan

2019 ◽  
Author(s):  
Muhammad Nazir Uddin ◽  
Nasrullah ◽  
Muddasir Khan
Keyword(s):  
Rhizoctonia Solani ◽  
Fungal Pathogens ◽  
Fungal Species ◽  
Fungal Diseases ◽  
Blue Mold ◽  
Fusarium Spp ◽  
Isolation And Identification ◽  
Alternaria Porri ◽  
Black Mold ◽  
Penicillium Spp

Onion is an important vegetable and a source of income for formers in District Swat, Pakistan. However, the crop is attacked by several pathogens i.e. fungi, bacteria, viruses, and nematodes. Therefore, a study was carried out for the estimation of fungal diseases of onion crop in district Swat. Within this study, about 50 samples of diseased onion crop were collected from 17 different regions of District Swat. The most prevalent fungal borne onion diseases were black mold (38%), onion rust (32%), Blue Mold Rot (10%) and seedling. Fungal species were consistently isolated from all infected samples. In which Aspergillus was isolated from 82% samples, Puccinia Alli was from 70%, Alternaria porri from 52%, Fusarium spp from 42% Penicillium spp from 40%, Peronospora destructor from 35%, Pyhtaium from 23% and Rhizoctonia solani from 18% of samples. These fungal species consistently isolated and cultured from diseased onion plants of different fields in Swat. Keywords: Onion crop, Fungal diseases, Aspergillus.

scholarly journals Crystallographic and spectroscopic characterization of racemic Mosher's Acid

2020 ◽  
Vol 76 (7) ◽  
pp. 1143-1145
Author(s):  
Carolyn Z. Savich ◽  
Joseph M. Tanski
Keyword(s):  
Carboxylic Acid ◽  
Spectroscopic Characterization ◽  
Acid Group ◽  
Compound C ◽  
Unit Form ◽  
Derivatizing Agent ◽  
Donor Acceptor ◽  
Group A ◽  
Mosher’S Acid

The title compound, C10H9F3O3, represents the structure of racemic Mosher's Acid (systematic name: 3,3,3-trifluoro-2-methoxy-2-phenylpropanoic acid), a carboxylic acid that when resolved can be employed as a chiral derivatizing agent. The compound contains a carboxylic acid group, a methoxy group and a trifluoromethyl substituent on an asymmetric benzylic carbon atom. The two independent molecules in the asymmetric unit form a non-centrosymmetric homochiral dimer via intermolecularly hydrogen-bonded head-to-tail dimers with graph-set notation R 2 2(8) and donor–acceptor hydrogen-bonding distances of 2.6616 (13) and 2.6801 (13) Å.

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