Majority of the orchid species are used in the traditional medicines for the treatment of several diseases. They are the sources of polysaccharides, phenanthrenes, bibenzyl derivatives, revesteral, stilbenoids and polyphenol compounds. This study explored the cytotoxic activity of seven wild orchid species and identification of medicinally active compounds. The extracts of orchid species were screened for cytotoxic effect on the human cervical cancer cells (HeLa) and human glioblastoma cells (U251) using an MTT assay. The medicinally active compounds of high cytotoxic extracts were identified by GC-MS resulting in many stilbenoids and phenolic derivatives. The extract of (DTs) and (VCw) showed high cytotoxic effect towards the HeLa and U251 cell lines (IC of DTs: 382.14 μg/ml and 75.84 μg/ml respectively and IC of VCw: 317.23 μg/ml and 163.66 μg/ml respectively). This study concludes that they could be used as cancer therapeutics.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7235618 | PMC |
http://dx.doi.org/10.1016/j.heliyon.2020.e03991 | DOI Listing |
BMC Plant Biol
January 2025
Graduate Program in Translational Agricultural Sciences, National Cheng Kung University and Academia Sinica, Tainan City, Taiwan.
Background: Orchids are well-known for their rich diversity of species as well as wide range habitats. Their floral structures are so unique in angiosperms that many of orchids are economically and culturally important in human society. Orchids pollination strategy and evolutionary trajectory are also fantastic human for centuries.
View Article and Find Full Text PDFFront Biosci (Elite Ed)
November 2024
Department of Life Sciences, GITAM School of Science, Gandhi Institute of Technology and Management, 530045 Visakhapatnam, Andhra Pradesh, India.
Background: Amalgamation of metal-tolerant plant growth promoting rhizobacteria (PGPR) with biochar is a promising direction for the development of chemical-free biofertilizers that can mitigate environmental risks, enhance crop productivity and their biological value. The main objective of the work includes the evaluation of the influence of prepared bacterial biofertilizer (BF) on biometric growth parameters as well as physiological and biochemical characteristics of rapeseed ( L.) at copper action.
View Article and Find Full Text PDFBraz J Microbiol
December 2024
Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.
Orchidaceae is one of the largest plant families and stands out for its wide variety of flowers with ornamental and environmental importance. Cattleya is one of the main commercial genera, presenting a great diversity of species and hybrids that attract the attention of collectors, orchid enthusiasts, and consumers. In their natural environment, orchids associate with mycorrhizal fungi, which are responsible for providing carbon and other nutrients during seed germination.
View Article and Find Full Text PDFJ Plant Res
December 2024
Department of Biology, Graduate School of Science, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan.
Crassulacean acid metabolism (CAM), a specialized mode of photosynthetic carbon assimilation characterized by nocturnal fixation of atmospheric CO and vacuolar malic acid storage, is found in a wide variety of vascular plant species, mainly those inhabiting water-limited environments. Identifying and characterizing diverse CAM species enhances our understanding of the physiological, ecological, and evolutionary significance of CAM photosynthesis. In this study, we examined the effect of CO elimination on chlorophyll fluorescence-based photosynthetic parameters in two constitutive CAM Kalanchoe species and six orchids.
View Article and Find Full Text PDFMol Ecol
December 2024
Department of Life Science, National Taiwan University, Taipei, Taiwan.
Species with intermediate phenotypes are usually hypothesised to have originated from hybrid speciation. However, other mechanisms, such as double bifurcated speciation with introgression may create the same phenotypes. Clarifying the underlying process generating the observed intermediate morphology is important for conservation efforts, as it provides insights into the species' evolutionary background and adaptability.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!