Volume 15 No. 4 July – August, 2010

ROMANIAN BIOTECHNOLOGICAL LETTERS

– an international journal –

CONTENTS

1.	OANA NEGRUŢĂ, ORTANSA CSUTAK, ILEANA STOICA, ELENA RUSU, TATIANA VASSUMethylotrophic yeasts: diversity and methanol metabolism	……………	5369
2.	CRISTINA DANIELA GOIA, IULIA VIRGINIA IANCU, DEMETRA SOCOLOV, ANCA BOTEZATU, ANCA MIHAELA LAZAROIU, IRINA HUICA, ADRIANA PLESA, GABRIELA ANTONThe expression of cell cycle regulators in HPV – induced cervical carcinogenesis	……………	5376
3.	GULERAY AGAR, OZKAN AKSAKAL, SEDAT BOZARI, SERAP SUNAR, FILIZ AYGUN ERTURK, NALAN YILDIRIM, SEVGI SEVSAYGenetic variation within and among three populations of Vicia canescens L. (Fabaceae) as revealed by RAPD and FAMEs analysis	……………	5384
4.	YESIM YALCIN MENDI, NURAY COMLEKCIOGLU, MUZAFFER IPEK, ESRA KOCAMAN, TOLGA IZGU, DILEK TEKDAL, PEMBE CURUKThe effect of different hormone concentrations and dark pretreatment on adventitious shoot regeneration in snake melon (Cucumis melo var. flexousus)	……………	5392
5.	AYDIN UZUN, OSMAN GULSEN, UBEYIT SEDAY, MUSTAFA BIRCAN, KADIR UGURTAN YILMAZSRAP based genetic analysis of some apricot cultivars	……………	5396
6.	SOOK YOUNG LEE, JONG SE KIM, CHUNG YEOL LEE,NAM IL PARK, SANG UN PARKInfluence of different strains of Agrobacterium rhizogenes on hairy root induction and production of alizarin and purpurin in Rubia akane Nakai	……………	5405
7.	IOSIF IANCULOV, DORICA BOTAU, DESPINA-MARIA BORDEAN, MIOARA CUCU, VANDA BOLDA, PETRONELA PRUNADetermination of total proteins in gemotherapeutic preparations with the Folin-Ciocalteu reagent	……………	5410
8.	CODINĂ GEORGIANA GABRIELA, VOICA DANIELAThe influence of different forms of backery yeast Saccharomyces cerevisie type strain on the concentration of individual sugars and their utilization during fermentation	……………	5417
9.	ANCA-IRINA GALACTION, DAN CAŞCAVAL, ŞTEFĂNICA CĂMĂRUŢAnalysis of distribution of oxygen transfer rate in stirred bioreactors for yeast broths	……………	5423
10.	GRIGORE, INA PARASCHIV, S. COLCERU-MIHUL, C. BUBUEANU, E. DRAGHICI, M. ICHIMChemical composition and antioxidant activity of Thymus vulgaris L. volatile oil obtained by two different methods	……………	5436
11.	CRISTIANA RADULESCU, CLAUDIA STIHI, GABRIELA BUSUIOC, ANCA IRINA GHEBOIANU, ION V. POPESCU, VALERICA GH. CIMPOCAEvaluation of essential elements and heavy metal levels in fruiting bodies of wild mushrooms and their substrate by EDXRF spectrometry and FAA spectrometry	……………	5444
12.	SERGIU CARAMAN, MARIAN BARBU, TUDOR IONESCU, GEORGE IFRIM, VICTOR CRISTEA, EMIL CEANGĂThe analysis of the dynamic properties of the wastewater treatment process in a recirculating aquaculture system	……………	5457
13.	CATALINA VOAIDES, DIANA GROPOSILA, MATILDA CIUCA, IRINA LUPESCU, ANETA POP, CALINA PETRUTA CORNEAPHAs accumulation in Pseudomonas putida P5 (wild type and mutants) in lipid containing media	……………	5467
14.	ÉVA GYÖRGY, GYÖNGYVÉR MARA, ISTVÁN MÁTHÉ, ÉVA LASLO, KÁROLY MÁRIALIGETI, BEÁTA ALBERT, SZABOLCS LÁNYI, FLORIN OANCEACharacterization and diversity of the nitrogen fixing microbiota from a specific grassland habitat in the Ciuc Mountains	……………	5474
15.	MIHAELA COTÂRLEŢ, GABRIELA BAHRIM, TEODOR NEGOITĂ, PETER STOUGAARDComparative study for establishing the efficiency of some methods for chromosomal DNA extraction from cold adapted streptomycetes	……………	5482
16.	CENGİZ YÜCEDAĞ, ABDULLAH GEZER, HİKMET ORHANThe genetic variation in Crimean juniper populations from the Lakes District of Turkey	……………	5487
17.	DUMITRU PETRU IGA, SILVIA IGASynthesis of DL-α-Tocopheryl-α-D-mannofuranoside as a tentative to increase its antiallergic and antiinflammatory activities relative to the pyranosic isomer. NMR spectral properties	……………	5493
18.	TEODOR VINTILA, MONICA DRAGOMIRESCU, VERONICA CROITORIU, CORNELIA VINTILA, HORIA BARBU, CAMELIA SANDSaccharification of lignocellulose – with reference to Miscanthus – using different cellulases	……………	5498
19.	ELENA NEAGU, GABRIELA PAUN ROMAN, GABRIEL LUCIAN RADUAntioxidant capacity of some Symphytum officinalis extracts processed by ultrafiltration	……………	5505
20.	GINA COGĂLNICEANU, MONICA MITOI, FLORENŢA HELEPCIUC, MIRELA MATEI, SORIN MATEIBiochemical changes induced in regenerants of Fragaria X Ananassa Duch. by the in vitro treatment with fungal elicitors	……………	5512

Cover: The Bucharest University Building