Characterization of Physiological Functions of Sapwood. Fluctuation of Heartwood Extractives in the Withering Process of Japanese Cedar Sapwood Fed an Inhibitor of Phenylalanine Ammonia-lyase

Holzforschung ◽  
1991 ◽  
Vol 45 (4) ◽  
pp. 245-252 ◽  
Author(s):  
Hideo Ohashi ◽  
Noriko Kato ◽  
Takanori Imai ◽  
Shingo Kawai
Keyword(s):  
Phenylalanine Ammonia Lyase ◽  
Japanese Cedar ◽  
Physiological Functions ◽  
Heartwood Extractives

Characterization of Physiological Functions of Sapwood Fluctuation of Extractives in the Withering Process of Japanese Cedar Sapwood

Holzforschung ◽  
1990 ◽  
Vol 44 (2) ◽  
pp. 79-86 ◽  
Author(s):  
Hideo Ohashi ◽  
Takanori Imai ◽  
Kazumasa Yoshida ◽  
Moritami Yasue
Keyword(s):  
Japanese Cedar ◽  
Physiological Functions

scholarly journals Characterization of Benzoyl Coenzyme A Biosynthesis Genes in the Enterocin-Producing Bacterium “Streptomyces maritimus”

2003 ◽  
Vol 185 (2) ◽  
pp. 399-404 ◽  
Author(s):  
Longkuan Xiang ◽  
Bradley S. Moore
Keyword(s):  
Benzoic Acid ◽  
Phenylalanine Ammonia Lyase ◽  
Coenzyme A ◽  
Primary Metabolism ◽  
The Novel ◽  
Wild Type ◽  
Coa Ligase ◽  
Encoding Gene ◽  
Coenzyme A Biosynthesis

ABSTRACT The novel benzoyl coenzyme A (benzoyl-CoA) biosynthesis pathway in “Streptomyces maritimus” was investigated through a series of target-directed mutations. Genes involved in benzoyl-CoA formation were disrupted through single-crossover homologous recombination, and the resulting mutants were analyzed for their ability to biosynthesize the benzoyl-CoA-primed polyketide antibiotic enterocin. Inactivation of the unique phenylalanine ammonia-lyase-encoding gene encP was previously shown to be absolutely required for benzoyl-CoA formation in “S. maritimus”. The fatty acid β-oxidation-related genes encH, -I, and -J, on the other hand, are necessary but not required. In each case, the yield of benzoyl-CoA-primed enterocin dropped below wild-type levels. We attribute the reduced benzoyl-CoA formation in these specific mutants to functional substitution and cross-talk between the products of genes encH, -I, and -J and the enzyme homologues of primary metabolism. Disruption of the benzoate-CoA ligase encN gene did not perturb enterocin production, however, demonstrating that encN is extraneous and that benzoic acid is not a pathway intermediate. EncN rather serves as a substitute pathway for utilizing exogenous benzoic acid. These experiments provide further support that benzoyl-CoA is formed in a novel bacterial pathway that resembles the eukaryotic assembly of benzoyl-CoA from phenylalanine via a β-oxidative path.

scholarly journals Mössbauer and Raman characterization of ash produced by burning ancient buried Japanese cedar and investigation for its unusual color tone

2020 ◽  
Vol 326 (1) ◽  
pp. 753-764
Author(s):  
Shigeru Yamauchi ◽  
Yasuji Kurimoto ◽  
Tsutomu Takayama ◽  
Yoichi Sakai
Keyword(s):  
Chemical Species ◽  
Japanese Cedar ◽  
Spectroscopic Characterization ◽  
Calcium Ferrite ◽  
Color Tone ◽  
Raman Spectroscopic ◽  
Hyperfine Splittings ◽  
The Individual ◽  
Raman Characterization

Abstract Mössbauer and Raman spectroscopic characterization of colored ash samples made by combustion of ancient buried Japanese cedar (Cryptomeria japonica) was carried out, and the factors governing the color tones were investigated mainly in terms of the chemical species of Fe. The ash samples displayed various unusual colors, depending clearly on the individual ancient tree and the part of it. Some of Mössbauer spectra of the ash samples showed magnetic hyperfine splittings due to internal magnetic fields. The Mössbauer and Raman spectra suggested that the primary Fe-containing species in all the ash samples was calcium ferrite, Ca2Fe2O5.

Studies on the immunolabeling of heartwood extractives: characterization of anti-agatharesinol antiserum

2004 ◽  
Vol 50 (1) ◽  
pp. 82-86 ◽  
Author(s):  
Takeshi Nagasaki ◽  
Norihisa Osada ◽  
Mika Sato ◽  
Seiichi Yasuda ◽  
Koetsu Takahashi ◽  
...  
Keyword(s):  
Heartwood Extractives
Sign in / Sign up

Export Citation Format

Share Document