Publications

[microbiota of the orchid rhizoplane].	six bacterial strains isolated from the underground roots of the terrestrial orchid calanthe vestita var. rubrooculata were found to belong to the genera arthrobacter, bacillus, mycobacterium, and pseudomonas. strains isolated from the aerial roots of the epiphytic orchid dendrobium moschatum were classified into the genera bacillus, curtobacterium, flavobacterium, nocardia, pseudomonas, rhodococcus, and xanthomonas. the rhizoplane of the terrestrial orchid was also populated by cyanobacteria of ...	2001	11558285
[localization of associative cyanobacteria on the roots of epiphytic orchids].	this work is the first study of the localization of phototrophic microorganisms in the rhizoplane and velamen of epiphytic orchids, namely on the aerial and substrate roots of acampe papillosa and dendrobium moschatum and on the aerial roots of the phalaenopsis amabilis and dendrobium phalaenopsis. the composition of the bacterial community on the plant roots depended on the conditions of plant growth. under conditions simulating climate of moist tropical forests, the aerial roots proved to be p ...	2003	12698799
[associative cyanobacteria isolated from the roots of epiphytic orchids].	associative cyanobacteria were isolated from the rhizoplane and velamen of the aerial roots of the epiphytic orchids acampe papillosa, phalaenopsis amabilis, and dendrobium moschatum and from the substrate roots of acampe papillosa and dendrobium moschatum. cyanobacteria were isolated on complete and nitrogen-free variants of bg-11 medium. on all media and in all samples, cyanobacteria of the genus nostoc predominated. nostoc, anabaena, and calothrix were isolated from the surface of the a. papi ...	2003	12698800
[bacteria associated with the roots of epiphytic orchids].	this work is the first to report the isolation and identification of bacteria colonizing the roots of tropical epiphytic orchids acampe papillosa (lindl.) lindl. and dendrobium moschatum (buch.-ham.) swartz. and bacteria inhabiting inner layers of the aerial and substrate roots of a. papillosa. we showed by the example of this epiphyte that associative bacteria are present in large amounts on the aerial but not substrate roots. we isolated and identified bacteria from the substrate roots of d. m ...	2006	15688942
[auxin production by bacteria associated with orchid roots].	bacteria associated with the roots of greenhouse tropical orchids were shown to produce indole-3-acetic acid (iaa) and to excrete it into the culture liquid. the presence and activity of iaa were demonstrated colorimetrically, by thin-layer chromatography, and by biotests. the associated bacteria varied in their ability to excrete indole compounds (1-28 microg/ml nutrient broth). addition of tryptophan to the growth medium enhanced phytohormone production. upon addition of 200 microg/ml tryptoph ...	2005	15835779
orchid-associated bacteria produce indole-3-acetic acid, promote seed germination, and increase their microbial yield in response to exogenous auxin.	germination of orchid seeds is a complex process. in this paper we focus on interactions between the host-plant and its bacterial partners via indole-3-acetic acid (iaa). originally isolated from the roots of the epiphytic orchid dendrobium moschatum, the strains of rhizobium, microbacterium, sphingomonas, and mycobacterium genera were among the most active iaa producers. addition of exogenous tryptophan significantly enhanced auxin formation both in mineral and complex media. the presence of ia ...	2007	17687544
comparative molecular cytogenetics of major repetitive sequence families of three dendrobium species (orchidaceae) from bangladesh.	dendrobium species show tremendous morphological diversity and have broad geographical distribution. as repetitive sequence analysis is a useful tool to investigate the evolution of chromosomes and genomes, the aim of the present study was the characterization of repetitive sequences from dendrobium moschatum for comparative molecular and cytogenetic studies in the related species dendrobium aphyllum, dendrobium aggregatum and representatives from other orchid genera.	2009	19635741