Neottieae comprise about 150-200 species and are distributed mainly in temperate and subtropical zones of the northern hemisphere. Mycoheterotrophy is common in Neottieae. Based on three DNA markers and a broad sampling of Neottieae, these results indicate that Neottieae is strongly supported as monophyletic and Palmorchis is sister to the remaining genera of Neottieae. Holopogon and Neottia s....

Coelogyne magnifica (Orchidaceae), a new species from Putao, Kachin State, Myanmar, is described and illustrated. It belongs to Coelogyne section Ocellatae Pfitzer & Kraenzl. and it is morphologically similar to Coelogyne corymbosa and C. taronensis, but can be distinguished from these species by its larger flowers, lanceolate sepals and petals, a narrowly ovate lip, which has two bright yellow...

Due to increasing demand for medicinal and horticultural uses, the Orchidaceae is in urgent need of innovative and novel propagation techniques that address both market demand and conservation. Traditionally, restoration techniques have been centered on ex situ asymbiotic or symbiotic seed germination techniques that are not cost-effective, have limited genetic potential and often result in low...

APETALA1 (AP1) encodes a key MADS-box transcription factor that specifies the floral meristem identity on the flank of the inflorescence meristem, and determines the identity of perianth floral organs in the model plant Arabidopsis thaliana. Orchids are members of the Orchidaceae, one of the largest families of angiosperms. Although the expression patterns of a few AP1-like genes in orchids hav...

The bulbous roots of Dactylorhiza hatagirea (D.Don) Soo (Fam. Orchidacea) which are synonymous to the tubers of Orchis macula (Orchidaceae) and serve as source of Salep, are used traditionally in Indian subcontinent specially in the Northern region and Nepal as aphrodisiac and sexual stimulant. It is considered as a nutritive and restorative tonic and also as an alternative source of Salep used...

An uncommon ester\ bis!p!hydroxybenzyl!1!isobutylmalate\ habenariol\ has been isolated\ by bioassay!guided fractionation\ from the organic extract of the freshwater orchid Habenaria repens[ The structure of habenariol was determined by the interpretation of spectral data[ Feeding bioassays showed that habenariol deters feeding by the common freshwater cray_sh Procambarus clarkii[ Habenariol is ...

Five new biphenanthrenes, cremaphenanthrenes A-E (1-5), along with six known ones, were isolated from the ethanolic extract of the tubers of Cremastra appendiculata (D. Don) Makino (Orchidaceae). Their structures were elucidated on the basis of extensive spectroscopic analyses. All the compounds obtained were tested in vitro for cytotoxic activities against colon (HCT-116), cervix (Hela), and b...

The asymmetry indexes have helped cytotaxonomists to interpret and classify plant karyotypes for species delimitation efforts. However, there is no consensus about the best method to calculate the intrachromosomal asymmetry. The present study aimed to compare different intrachromosomal asymmetry indexes in order to indicate which are more efficient for the estimation of asymmetry in different g...

In this review, the scope of morphological diversity fruits within class Liliopsida belonging to flora Ukraine compared world was analyzed. For first time, taxonomic monocot plants analyzed, which includes 235 genera and about 1050 species, distribution fruit types in largest families revealed. It found that among flora, as also Ukrainian more than 70% generic species is taken up by Orchidaceae...

ABSTRACT An essential factor for the formation of a native orchid seed bank is identification viability stored seeds. This study aimed to determine methodology optimizing tetrazolium test, in seeds two Orchidaceae medicinal species Brazilian Savanna. Seeds Miltonia flavescens Lindl. and Schomburgkia crispa were submitted three pre-conditioning conditions: no soaking (control), sucrose solution ...