Food production and global economic stability are being threatened by climate change. The increment of drought episodes the increase soil salinization major problems for agriculture worldwide. Chenopodium quinoa (quinoa), as a resilient crop, is capable growth in harsh environments due to its versatility adaptive capacity. Quinoa classified an extremophile tolerant salinity, low temperature. Fu...

The larval instars of Pnigalio gyamiensis Myartseva and Kurashev are described in detail for the first time. This species is a larval-pupal ectoparasitoid of Chrysoesthia sexguttella (Thunberg) (Lepidoptera, Gelechiidae), which forms leaf mines in the plant Chenopodium album L. (Caryophyllales: Amaranthaceae). The female of Pnigalio gyamiensis lays a single egg on the skin of the host larva or ...

This paper records the plants used in the treatment of cutaneous leishmaniasis due to Leishmania (Viannia) braziliensis (L(V)b) among the rural population of a cocoa-producing coastal area of Bahia state, Brazil. An enquiry conducted among a hundred patients identified 49 plants species used to treat skin ulceration caused by this Leishmania species. The principal plants used are caju-branco (A...

Antioxidant activity of a selection of commonly occurring wild plants growing in Beni-Sueif governorate, Upper Egypt, has been tested. The plants selected are Tamarix nilotica, Ambrosia maritima, Zygophyllum coccenium, Conyza dioscoridis, Chenopodium ambrosioides, and Calotropis procera. The in vitro antioxidant assays used in this study were 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scaven...

To date, there are no vaccines against Leishmania, and chemotherapy remains the mainstay for the control of leishmaniasis. The drugs of choice used for leishmaniasis therapy are significantly toxic, expensive and with a growing frequency of refractory infections. Because of these limitations, a combination therapy is the better hope. This work demonstrates that the essential oil from Chenopodiu...

Cells from photoautotrophic cultures o f Chenopodium rubrum were fractionated for the iso­ lation o f purified chloroplasts and mitochondria. The subcellular localization o f the enzymatic activities involved in the metabolism o f malic acid was investigated. Highly purified chloro­ plasts were obtained from the protoplasts, whereas peroxisomes were still present in the mito­ chondrial fraction...

The plastocyanin from Phaseolus vulgaris has been shown to consist of a single polypeptide chain of 100 residues to which 1 atom of copper is bound. This plastocyanin is the smallest copper-protein yet reported; its molecular weight is 10,690. The molar extinction coefficient (E& of the copper chromophore was shown to be 4.5 x 103. The copper content and molecular weight contrast with that of p...

Although leaf expansion is obviously a fundamental process in the development of plants, its physiological mechanism is little understood, and has been but sparingly investigated. It is known that auxins affect the elongation of the leaf veins (1) but do not seem to influence the expansion of the laminar leaf tissues. BONNER et al. (3) observed an increase in expansion of radish leaf disks floa...