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Biosynthesis of fusarochromanone and its monoacetyl derivative by Fusarium equiseti.

https://arctichealth.org/en/permalink/ahliterature75635
Source
Appl Environ Microbiol. 1989 Apr;55(4):794-7
Publication Type
Article
Date
Apr-1989
Author
W P Xie
C J Mirocha
R J Pawlosky
Y C Wen
X G Xu
Author Affiliation
Department of Plant Pathology, University of Minnesota, St. Paul 55108.
Source
Appl Environ Microbiol. 1989 Apr;55(4):794-7
Date
Apr-1989
Language
English
Publication Type
Article
Keywords
Amino Acids - biosynthesis - isolation & purification
Chromatography, High Pressure Liquid
Chromatography, Thin Layer
Chromones - biosynthesis - isolation & purification
Culture Media
Fusarium - growth & development - metabolism
Molecular Structure
Mycotoxins - biosynthesis - isolation & purification
Oryza sativa
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Spectrum Analysis, Mass
Abstract
One fluorescent compound previously named TDP-2 was isolated and purified from a rice culture of Fusarium equiseti (Alaska 2-2). Mass spectral and nuclear magnetic resonance data indicated that it is a C-3'-N-acetyl derivative of fusarochromanone, a newly discovered mycotoxin. Time course studies of synthesis of these two compounds on autoclaved rice and Czapek-Dox medium enriched with soybean peptone indicated that fusarochromanone was converted to TDP-2 in the cultures. A high concentration of peptone in the liquid medium may stimulate both fusarochromanone synthesis and its conversion to TDP-2.
PubMed ID
2729980 View in PubMed
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Evidence for sodium-rich alkaline water in the Tagish Lake parent body and implications for amino acid synthesis and racemization.

https://arctichealth.org/en/permalink/ahliterature305962
Source
Proc Natl Acad Sci U S A. 2020 05 26; 117(21):11217-11219
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Date
05-26-2020
Author
Lee F White
Kimberly T Tait
Brian Langelier
Elizabeth A Lymer
Ana Cernok
Tanya V Kizovski
Chi Ma
Oliver Tschauner
Richard I Nicklin
Author Affiliation
Department of Natural History, Royal Ontario Museum, Toronto, ON M5S 2C6, Canada; lwhite@rom.on.ca.
Source
Proc Natl Acad Sci U S A. 2020 05 26; 117(21):11217-11219
Date
05-26-2020
Language
English
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Keywords
Amino Acids - biosynthesis - chemical synthesis
British Columbia
Calcium - chemistry
Ferrosoferric Oxide - chemistry
Hydrogen-Ion Concentration
Lakes
Magnesium - chemistry
Meteoroids
Sodium - chemistry
Stereoisomerism
Tomography - methods
Water - chemistry
Abstract
Understanding the timing and mechanisms of amino acid synthesis and racemization on asteroidal parent bodies is key to demonstrating how amino acids evolved to be mostly left-handed in living organisms on Earth. It has been postulated that racemization can occur rapidly dependent on several factors, including the pH of the aqueous solution. Here, we conduct nanoscale geochemical analysis of a framboidal magnetite grain within the Tagish Lake carbonaceous chondrite to demonstrate that the interlocking crystal arrangement formed within a sodium-rich, alkaline fluid environment. Notably, we report on the discovery of Na-enriched subgrain boundaries and nanometer-scale Ca and Mg layers surrounding individual framboids. These interstitial coatings would yield a surface charge state of zero in more-alkaline fluids and prevent assimilation of the individual framboids into a single grain. This basic solution would support rapid synthesis and racemization rates on the order of years, suggesting that the low abundances of amino acids in Tagish Lake cannot be ascribed to fluid chemistry.
Notes
CommentIn: Proc Natl Acad Sci U S A. 2020 Sep 15;117(37):22650-22651 PMID 32913061
CommentIn: Proc Natl Acad Sci U S A. 2020 Sep 15;117(37):22649 PMID 32913062
PubMed ID
32393617 View in PubMed
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[Synthesis of amino acids of Bacillus subtilis IMV V-7023 in the medium with glycerophosphates]

https://arctichealth.org/en/permalink/ahliterature97023
Source
Mikrobiol Z. 2009 Sep-Oct;71(5):18-23
Publication Type
Article
Author
L S Tserkovniak
A O Roi
I K Kurdysh
Source
Mikrobiol Z. 2009 Sep-Oct;71(5):18-23
Language
Ukrainian
Publication Type
Article
Keywords
Amino Acids - biosynthesis - pharmacology
Bacillus subtilis - growth & development - metabolism
Colony Count, Microbial
Culture Media - chemistry
Glycerophosphates - chemistry
Plant Growth Regulators - chemistry - pharmacology
Soil Microbiology
Triticum - growth & development
Vegetables - growth & development
Abstract
It was shown that under cultivation of Bacillus subtilis IMVV-7023 in the nutrient medium with glycerophosphate biologically active substances are accumulated in the culture liquid. They influence positively the seeds growth and formation of plant germs. The bacteria synthesize amino acids in this medium, their quantitative structure differs from the type of carbon nutrition and cultivation time of the cells.
PubMed ID
20458933 View in PubMed
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Synthesis of mycosporine-like amino acids by a size-fractionated marine phytoplankton community of the arctic beaufort sea.

https://arctichealth.org/en/permalink/ahliterature295463
Source
J Photochem Photobiol B. 2018 Nov; 188:87-94
Publication Type
Journal Article
Date
Nov-2018
Author
Sun-Yong Ha
Jun-Oh Min
HyoungMin Joo
Min-Seob Kim
Sung-Ho Kang
Kyung-Hoon Shin
Author Affiliation
Korea Polar Research Institute (KOPRI), Division of Polar Ocean Sciences, 26 Songdomirae-ro, Yeonsu-Gu, Incheon 21990, Republic of Korea.
Source
J Photochem Photobiol B. 2018 Nov; 188:87-94
Date
Nov-2018
Language
English
Publication Type
Journal Article
Keywords
Amino Acids - biosynthesis
Arctic Regions
Carbon - metabolism
Chlorophyll - analysis
Oceans and Seas
Phytoplankton - growth & development - metabolism
Abstract
During the RV-ARAON cruise, a comparative study on the biosynthesis of mycosporine-like amino acids (MAAs) was conducted for the size-fractionated phytoplankton of the Beaufort Sea (Arctic). The MAAs contents in the micro-phytoplankton community (>20?µm size) is considerably higher than that observed in the nano- (20-2?µm size) and pico-phytoplankton (
PubMed ID
30237008 View in PubMed
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6 records – page 1 of 1.