Production of virus-free orchid Cymbidium aloifolium (L.) Sw. by various tissue culture techniques

Production of virus-free orchid Cymbidium aloifolium (L.) Sw. by various tissue culture techniques

Orchids are affected by many viruses resulting in poor growth, yield and quality, and an overall decline in population. Cymbidium mosaic virus (CymMV) is one of the common orchid viruses found in Cymbidium species but it infects different orchid genera. In this study Cymbidium aloifolium was propagated in vitro using MS medium at different strength (1.0, ½, and ¼) with or without 0.5 mg/l BAP (...

Central nervous system depressant effects of the ethanolic extract of Cymbidium aloifolium (L.)

The ethanolic leaf extract of Cymbidium aloifolium (L.) was intended to evaluate the effect on the central nervous system (CNS) using a number of neuropharmacological experimental models in mice. The extract, at the dose of 200 and 400 mg/kg body weight, were shown to have CNS depressant activity by the reduction of locomotor and exploratory activities in the open field and hole cross tests. Th...

Mycorrhizas alter nitrogen acquisition by the terrestrial orchid Cymbidium goeringii.

BACKGROUND AND AIMS Orchid mycorrhizas exhibit a unique type of mycorrhizal symbiosis that occurs between fungi and plants of the family Orchidaceae. In general, the roots of orchids are typically coarse compared with those of other plant species, leading to a considerably low surface area to volume ratio. As a result, orchids are often ill-adapted for direct nutrient acquisition from the soil ...

Adaptation of Horsesickness Virus to Tissue Culture

L-asparaginase production by various bacteria.

Of 123 species of bacteria surveyed for L-asparaginase synthesis, Erwinia aroideae NRRL B-138 provided the highest yields.