A new species of Neurocalyx (Rubiaceae) from Peninsular India

Viswanathan, M. B.; Manikandan, U.; Tangavelou, Arumugame Chanemougame

doi:10.1111/j.1756-1051.2003.tb00410.x

Cited by 3 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rob. is a wild ornamental herbaceous plant classified under the tribe Ophiorrhizeae (Bremer, 1987; Viswanathan et al ., 2005; Takhtajan, 2009). It grows up to 20 inches and is dispersed on rocky crevices at the banks of streams in the tropical wet evergreen forests at higher altitudes (1200–1600 m ASL).…”

Section: Introductionmentioning

confidence: 99%

Sub-chronic oral toxicity assessment (90 days) of ethanolic fraction of leaves of Neurocalyx calycinus (R. Br. ex Benn.) Rob. in rodents: A lesser known ethnomedicinal plant from the Cholanaickan tribal community, India

Aneeshkumar

Suja

Vilash

et al. 2018

Interdisciplinary Toxicology

View full text Add to dashboard Cite

The objective of the present study was to evaluate the safety of long term consumption of ethanolic fraction of Neurocalyx calycinus leaves (NCEF) in rodents. The NCEF was subjected to detect the presence of various phytoconstituents. In acute oral toxicity study, graded doses of NCEF was administered in mice and were observed up to 14 days. In sub-chronic oral toxicity study, NCEF was administered to Wistar rats at doses of 50, 500 and 1000 mg/kg b.w. per day for 90 days and after that, observed up to 28 days. NCEF showed the presence of alkaloids, steroids, phenolics and glycosides. In acute toxicity study, there was no mortality and no behavioural signs of toxicity at the highest dose level (6400 mg/kg b.w.). In sub-chronic oral toxicity study, there were no significant difference observed in the consumption of food and water, body weight and relative organ weights. Haematological, serum biochemical, hepatic oxidative stress marker analysis and urine analysis revealed the non-adverse effects of prolonged oral consumption of NCEF. The histopathologic examination did not show any differences in vital organs. Based on our findings, NCEF, at dosage levels up to 1000 mg/kg b.w., is non-toxic and safe for long term oral consumption.

show abstract

Section: Introductionmentioning

confidence: 99%

Sub-chronic oral toxicity assessment (90 days) of ethanolic fraction of leaves of Neurocalyx calycinus (R. Br. ex Benn.) Rob. in rodents: A lesser known ethnomedicinal plant from the Cholanaickan tribal community, India

Aneeshkumar

Suja

Vilash

et al. 2018

Interdisciplinary Toxicology

View full text Add to dashboard Cite

show abstract

The evolutionary ecology of dust seeds

Eriksson

Kainulainen

2011

Perspectives in Plant Ecology, Evolution and Systematics

117

View full text Add to dashboard Cite

‘Dust seeds’ with undifferentiated embryos and their germination in mycoheterotrophic Monotropoideae (Ericaceae)

Baskin

2020

Seed Sci. Res.

View full text Add to dashboard Cite

‘Dust seeds’ with an undifferentiated (organless) embryo are known to be produced by mycoheterotrophic species (MH) in nine families of angiosperms. However, aside from the numerous studies on seed germination of orchids, relatively little is known about germination in MH families. In the Ericaceae, some degree of mycoheterotrophy (full, partial or initial) and dust seeds with an undifferentiated embryo occur in all species in the three tribes of Monotropoideae, the only subfamily of Ericaceae with this combination of characters. In most species, the seed is <0.90 mm in the greatest dimension, the endosperm is absent (Pityopus) or consists of few to many (30–40) cells, and the embryo is minute, consisting of as few as two cells in Monotropa. Germination in Monotropoideae is monopolar, with only the radicular pole of the embryo participating in germination. Thus, germination polarity differs from that of the dust seeds of orchids in which only the plumular pole of the embryo (protocorm) participates in germination. The dust seeds in Monotropoideae require the presence of fungi, either direct contact with a fungus or the presence of a diffusible substance therefrom, to germinate (symbiotic germination). Recently, representatives of the four genera of tribe Pyroleae have been successfully germinated asymbiotically in vitro. We present a broad overview of dust-size seeds in angiosperms and conclude that they should be subdivided into at least two major categories.

show abstract

A new species of Neurocalyx (Rubiaceae) from Peninsular India

Abstract: A new species of Rubiaceae from the Kalakkad‐Mundanthurai Tiger Reserve of Tamil Nadu, India, Neumcalyx bremeri, is described and illustrated. Conservation status assigned as Critically Endangered by applying IUCN Red List Category criteria is provided.

Cited by 3 publications

References 2 publications

Sub-chronic oral toxicity assessment (90 days) of ethanolic fraction of leaves of Neurocalyx calycinus (R. Br. ex Benn.) Rob. in rodents: A lesser known ethnomedicinal plant from the Cholanaickan tribal community, India

Sub-chronic oral toxicity assessment (90 days) of ethanolic fraction of leaves of Neurocalyx calycinus (R. Br. ex Benn.) Rob. in rodents: A lesser known ethnomedicinal plant from the Cholanaickan tribal community, India

The evolutionary ecology of dust seeds

‘Dust seeds’ with undifferentiated embryos and their germination in mycoheterotrophic Monotropoideae (Ericaceae)

Contact Info

Product

Resources

About