€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ *****BIOCHEMICAL JOURNAL***** Haslett BG Boulter D The N-terminal amino acid sequence of plastocyanin from Stellaria media L. An exercise to establish criteria for the identification of residues from a sequenator. In: Biochem J (1976 Jan 1) 153(1):33-8 ISSN: 0006-2936 The N-terminal amino acid sequence of plastocyanin from Stellaria media L. (chickweed) has been determined by means of an automatic sequencer. Amino acid derivatives obtained during the degradation were identified by a combination of t.l.c., g.l.c. and regeneration of the parent amino acid. The analytical results are presented for each sample, and the criteria used to establish the amino acid sequence are discussed. €€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ *****GENOME***** Zhang XH Chinnappa CC Triose phosphate isomerase of Stellaria longipes (Caryophyllaceae). In: Genome (1994 Feb) 37(1):148-56 ISSN: 0831-2796 A cDNA encoding triose phosphate isomerase (TPI) of Stellaria longipes has been isolated and sequenced. The TPI of S. longipes exhibits high similarity to the TPIs from other species at both the nucleotide and amino acid levels. Southern blot analysis showed that the S. longipes genome contained multiple TPI-like nucleotide sequences and only a low degree of polymorphism was observed among genotypes of different habitats. The levels of TPI mRNA, detected by hybridization to the TPI cDNA, appeared similar between the genotypes. However, different genotypes showed variations in the total TPI activity, reflecting the possible ecological effect on the TPI gene expression. Northern blot hybridization to the cDNA also indicated a higher level of TPI mRNA in leaves than in roots, suggesting tissue-specific expression of TPI gene(s). Phylogenetic analysis of the TPI amino acid sequences from 16 taxa suggested that the TPI from S. longipes was more closely related to cytosolic TPIs from other plants than it was to TPIs from prokaryotes. Registry Numbers: EC 5.3.1.1 (Triosephosphate Isomerase) €€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ *****JOURNAL OF NATURAL PRODUCTS***** Morita H Kayashita T Shimomura M Takeya K Itokawa H Cyclic peptides from higher plants. 24.1 yunnanin C, a novel cyclic heptapeptide from Stellaria yunnanensis. In: J Nat Prod (1996 Mar) 59(3):280-2 ISSN: 0163-3864 A novel cytotoxic cyclic heptapeptide, yunnanin C (1), was isolated from the roots of Stellaria yunnanensis. The structure of 1, cyclo(- Gly-Ile-Gly-Phe-Tyr-Ser-Pro-), was elucidated from spectroscopic evidence and by chemical degradation. €€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ *****MOLECULAR BIOLOGY AND EVOLUTION***** Zhang XH Chinnappa CC Molecular cloning of a cDNA encoding cytochrome c of Stellaria longipes (Caryophyllaceae)--and the evolutionary implications. In: Mol Biol Evol (1994 May) 11(3):365-75 ISSN: 0737-4038 A cDNA clone encoding cytochrome c of Stellaria longipes was isolated and characterized. The nucleotide and predicted amino acid sequences were highly similar to those from other plant, fungal, and animal species. No significant polymorphism was observed among different genotypes (ecotypes). The S. longipes genome contained a low copy number of nucleotide sequences of cytochrome c. The gene expression of cytochrome c exhibited a certain degree of tissue specificity, with more transcripts in leaf than in stem. A phylogenetic analysis of the cytochrome c amino acid sequences revealed an unusual aspect of plant cytochrome c evolution. Registry Numbers: 9007-43-6 (Cytochrome c) 9007-49-2 (DNA) €€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ *****PHYTOCHEMISTRY***** Zhao YR Zhou J Wang XK Huang XL Wu HM Zou C Cyclopeptides from Stellaria yunnanensis. In: Phytochemistry (1995 Nov) 40(5):1453-6 ISSN: 0031-9422 In a previous paper, we reported the structural elucidation of stellarin A, a new cyclic heptapeptide, from the fresh roots of Stellarina yunnanensis Franch. Further chemical study on this plant led to the isolation of another two new cyclopeptides named stellarin B and C. Their structures were established to be cyclo(Gly-Ser-HOIle- Phe-Phe-Ala) and cyclo(Gly-Ser-HOIle-Phe-Phe-Ser), respectively, by spectral methods. €€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ *****PLANTA***** Kathiresan A Reid DM Chinnappa CC Light- and temperature-entrained circadian regulation of activity and mRNA accumulation of 1-aminocyclopropane-1-carboxylic acid oxidase in Stellaria longipes. In: Planta (1996) 199(3):329-35 ISSN: 0032-0935 Stem and leaf tissues of Stellaria longipes Goldie (prairie ecotype) exhibit circadian rhythmicity in the activity and mRNA abundance for 1-aminocyclopropane-1-carboxylic acid oxidase (EC 1.4.3). The steady- state mRNA levels and enzymatic activity levels fluctuated with a period of approximately 24 h and reached their maxima by the middle of the light phase and minima by the middle of the dark phase. The oscillations showed damping under constant light, constant dark and constant temperature conditions, indicating that the rhythm is entrained by an external signal. The results indicate that light/dark cycles have greater entraining effects than temperature cycles. A 15- min red light pulse, but not a blue light pulse, could reset rhythm in continuous darkness, suggesting the possible role of a red-light signal transduction pathway in the circadian regulation of 1- aminocyclopropane-1-carboxylic acid oxidase. Registry Numbers: EC 1.4. (Amino Acid Oxidoreductases) EC 1.4.3.- (1-aminocyclopropane-1-carboxylic acid oxidase) €€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ *****POLISH JOURNAL OF PHARMACOLOGY AND PHARMACY***** Budzianowski J Pakulski G Robak J Studies on antioxidative activity of some C-glycosylflavones. In: Pol J Pharmacol Pharm (1991 Sep-Oct) 43(5):395-401 ISSN: 0301-0244 Ten flavonoid C-glycosyl derivatives: orientin (1), isoorientin (2), vitexin (3), isovitexin (4), isovitexin 7,2"-di-O-glucoside (5), isovitexin 7-O-galactoside-2"-O-glucoside (6), two different 6,8-di-C- hexosylapigenins (7, 8), and two different 6-C-hexosyl-8-C- pentosylapigenins (9, 10) have been either produced from flavonoid fractions from Adonis vernalis L. (1, 2) and Crataegus species (3, 4), or isolated from Stellaria media (L.) Vill. (5-10) to study their antioxidative properties. These were found only for two compounds: orientin (1) and isoorientin (2). €€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€