Chromosome studies on African plants. 11. The tribe Andropogoneae  (Poaceae: Panicoideae)

Spies, J. J.; Troskie, T. H.; Vyver, E. van der; Wyk, S. M. C. Van

doi:10.4102/abc.v24i2.778

Cited by 3 publications

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“…These medicinal plants are used to cure various diseases. The voucher specimen numbers for these plants are as follows: Cymbopogon (Du Plessis 129,10.-KWAZULU/NATAL.-2930) [ 10 ], Artemisia (number 14-12-AS-02 of the identified species were deposited with the Herbarium (BNU) [ 11 ], Cynanchum argel delile (Aziz sn. (MO)/Boulos and water) 19142RBGK15763, K)-Egypt [ 12 ], Equisetum (W.C. Holmes, J.R. Singhurst and J.N.…”

Section: Methodsmentioning

confidence: 99%

Toxic Elements in Different Medicinal Plants and the Impact on Human Health

Brima

2017

IJERPH

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Local medicinal plants from Madina, Saudi Arabia, are used to cure various diseases. However, some can cause adverse health effects. Five different medicinal plants were collected in the city of Madina: mahareeb (Cymbopogon), sheeh (Artemisia), harjal (Cynanchum argel delile), nabipoot (Equisetum), and kafmariam (Vitex agnus-castus). In total, four toxic elements including Al, Pb, As, and Cd were analyzed using inductively coupled plasma mass spectrometry (ICP-MS). The range of recoveries fell between 86.1 and 90.6% for all measured elements. Al levels were the highest of any of the studied elements in all plant samples, with Cymbopogon showing the highest levels. The range of concentrations of Al was 156–1609 mg/kg. Cd appeared at the lowest levels in all plants samples, with Vitex agnus-castus containing this element at the highest levels. Cd concentrations were in the range of 0.01–0.10 mg/kg. A washing process lowered the toxic elements in all plants; average % recoveries were Al (47.32%), As (59.1%), Cd (62.03%), and Pb (32.40%). The calculated human health risk assessment in one dose for toxic elements in all plants was as follows: Al (1.33 × 10−3–5.57 × 10−2 mg/kg.bw), Pb (0–8.86 × 10−5 mg/kg.bw), As (3.43 × 10−7–1.33 × 10−5 mg/kg.bw), and Cd (0–3.14 × 10−6 mg/kg.bw). Medicinal plants are a source of exposure to toxic elements. However, none of the plants in this study exceeded the daily guideline set by the WHO for any element based on conventional use by the local population. We may cautiously conclude that these medicinal plants pose no risk to users based on conventional use.

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Section: Methodsmentioning

confidence: 99%

Toxic Elements in Different Medicinal Plants and the Impact on Human Health

Brima

2017

IJERPH

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“…Diploid, tetraploid and octoploid levels in this species have been reported (De Wet 1954;Spies & Du Plessis 1987a;Du Plessis & Spies 1988;Spies et al 1994).…”

Section: Tribe Andropogoneaementioning

confidence: 76%

“…indicating that the species is either an alloploid or has a secondary basic chromosome number of ten. Sinha et al 1990: Spies et al 1994. The fact that the chromosome numbers of two of the species studied (28.6%) are published for the first time and that two new ploidy levels (28.6%) are described for the seven species studied, indicate that more cytogenetic studies of the Andropogoneae are needed (57.1% of the studied specimens presented new data).…”

Section: Tribe Andropogoneaementioning

confidence: 98%