A synthesis of the Phaeogenini occurring in Afrotropical region is provided. Three species are newly described: Centeterichneumon nambi Dal Pos, Diller & Di Giovanni sp. nov. from Uganda, Chauvinia ganota Claridge Kenya, and Kibalus nonnaritae Pos Uganda. Heterischnus mfongosi Rousse van Noort, 2013 recorded for Kenya Tanzania male diagnosed first time. Also, female Arearia oxymoron time on...

Two cases of proven coral snake bites were reported in Belém, Pará State, Brazil. The first case was a severe one caused by Micrurus surinamensis. The patient required mechanical ventilation due to acute respiratory failure. The second case showed just mild signs of envenomation caused by Micrurus filiformis. Both patients received specific Micrurus antivenom and were discharged without further...

Heliotropium foliatum and Tournefortia humilis are transferred to Euploca Nutt. respectively as Euploca foliata comb. n. and Euploca humilis comb. n. A collection from Guyana has been recently identified as Euploca humistrata, a species previously considered a Brazilian endemic. A collection from French Guiana documents for the first time the species in that country. A key to the species of the...

Data regarding the role of oxygen in nitrite reduction are presented. In an NADPH-generating system including homogeneously purified ferredoxin-NADP reductase, ferredoxin (or flavodoxin) and nitrite reductase from the alga Bumilleriopsis filiformis, oxygen and nitrite can be reduced simultaneously. In air, rates of 1.2 mumol nitrite reduced-min-1-mg-1 nitrite reductase are obtained, which are p...

Peroxidizing herbicides were assayed for their capacity to accumulate tetrapyrrole-like compounds in the liquid culture medium when growing the xanthophycean alga Bumilleriopsis filiformis. W e have isolated and purified this compound by H P L C . For identification optical, fluorescence, N M R and mass spectroscopy were employed. All these techniques showed that the accumulation product is pro...

ln Bumilleriopsis filiformis, the thylakoid-membrane protein showing the highest turnover in the light has an apparent molecular weight o f 35 kDa. Loss o f this protein after chlor­ amphenicol treatment leads to a corresponding reduction o f herbicide-binding sites as well as photosystem-II activity (measured by e.g. H20 -» silicom olybdate) and cellular photosynthesis. This correlation is qua...

The preliminary result of a survey conducted on Xylaria species in the North of Iran is presented. Based on morphological examination of fungal specimens collected from Guilan, Mazandaran and Golestan provinces, eight species including Xylaria arbuscula, X. cubensis, X. filiformis, X. hypoxylon, X. longipes, X. multiplex, X. pannosa, and X. polymorpha were identified. Among the identified speci...