Polyphenols in whole grain wheat have potential health benefits, but little is known about the expression patterns of phenolic acid biosynthesis genes and the accumulation of phenolic acid compounds in different-colored wheat grains. We found that purple wheat varieties had the highest total phenolic content (TPC) and antioxidant activity. Among phenolic acid compounds, bound ferulic acid, vani...

Purple acid phosphatases (PAPs) are binuclear acid metallohydrolases also referred to as tartrate-resistant acid phosphatases (TRAPs) or type 5 acid phosphatases. The cDNA sequences of TRAP/PAP enzymes from different species and organs indicate that these enzymes are translated as monomeric polypeptides of approx. 35 kDa, contrasting with the predominantly two-subunit structure observed in puri...

Induction and secretion of acid phosphatases (APases) is considered to be an important strategy for improving plant growth under conditions of low inorganic phosphate (Pi). Purple acid phosphatases (PAPs), are an important class of plant APases that could be secreted into the rhizosphere to utilize organic phosphorus (Po) for plant growth and development. To date, only a few members of the PAP ...

Purple acid phosphatase (PAP) catalyzes the hydrolysis of phosphate monoesters and anhydrides to release phosphate within an acidic pH range. Among the 29 PAP-like proteins in Arabidopsis (Arabidopsis thaliana), AtPAP15 (At3g07130) displays a greater degree of amino acid identity with soybean (Glycine max; GmPHY) and tobacco (Nicotiana tabacum) PAP (NtPAP) with phytase activity than the other A...

Department of Chemical and Biological Sciences, Japan Women’s University, Tokyo 112–8681, Japan (R.K., Y.S., Y.Y., T.S.K.); Royal Institute of Technology, School of Biotechnology, AlbaNova University Center, Stockholm SE–10691, Sweden (V.B.); Kyoto University, Research Institute for Sustainable Humanosphere, Gokasho, Uji, Kyoto 611–0011, Japan (R.K., T.K., T.H.); and Institute of Sustainability...

Reportamos neste trabalho, a síntese, a estrutura cristalina e as propriedades espectroscópicas e eletroquímicas do complexo NH4[Fe2 (bbpmp)(μ-SO4)2] 1 onde bbpmp é o ânion do ligante 2,6-bis[(2-hidróxibenzil)(2-metilpiridil)-amino-metil]-4-metilfenol. Este representa o primeiro exemplo de um complexo contendo a unidade estrutural (μ-fenolato)(μ-SO4)2 e um ligante N,Odoador de relevância, como ...