RT Journal Article
T1 Effects of both urea and light on the ability of Accumulation and se- cretion of proteins and phenolics by Cladonia verticillaris
A1 Vasconcelos, Talitha L. de
A1 De Armas, Roberto
A1 Pereira, Eugênia C.
A1 Santiago, Rocío
A1 Da Silva, Nicácio H.
A1 Vicente Córdoba, Carlos
A1 Legaz González, María Estrella
AB Pernambuco (Brazil) in which sugar cane cultures are often established and fertilized by urea. The thalli of the above mentioned lichen are ex- perimentally maintained on different concentrations of urea in light or in darkness, conditions that simulate agricultural uses. The capture of the external urea by the thalli was higher in light than in the dark depending on the urea concentration. Urea inside the thallus is hydrolyzed by in- duced urease to produce both carbon dioxide and ammonia. This implies an increase of the protein production, a part of which is secreted to the media whereas another part is retained by the thallus. Both secretion and retention of proteins are increased by light. Production of lichen phenolics, protocetraric and fumarprotocetraric acids, increases in light and fumarprotocetraric acid mainly migrates to the cortex. Both production and migration are slightly effected by urea.
PB Trade Science
YR 2016
FD 2016
LK https://hdl.handle.net/20.500.14352/23498
UL https://hdl.handle.net/20.500.14352/23498
LA eng
NO Ministerio de Ciencia e Innovación (MICINN)
NO Coordenadoira de Aperfeçioamento de Pessoal de Ensino Superior (CAPES, Brazil)
NO Conselho Nacional de Desenvolvimento CientÌfico e Tecnológico (VNPq, Brazil)
DS Docta Complutense
RD 2 may 2024