Search results for "Anatomia vegetal"
showing 2 items of 2 documents
Aminopropyltransferases involved in polyamine biosynthesis localize preferentially in the nucleus of plant cells
2012
Plant aminopropyltransferases consist of a group of enzymes that transfer aminopropyl groups derived from decarboxylated S-adenosyl-methionine (dcAdoMet or dcSAM) to propylamine acceptors to produce polyamines, ubiquitous metabolites with positive charge at physiological pH. Spermidine synthase (SPDS) uses putrescine as amino acceptor to form spermidine, whereas spermine synthase (SPMS) and thermospermine synthase (TSPMS) use spermidine as acceptor to synthesize the isomers spermine and thermospermine respectively. In previous work it was shown that both SPDS1 and SPDS2 can physically interact with SPMS although no data concerning the subcellular localization was reported. Here we study the…
Rilevanza tassonomica dell’anatomia delle strutture vegetative e delle plantule in specie del genere Kali (Amaranthaceae).
2017
Per approfondire il grado di variabilità morfo-anatomica delle strutture vegetative nel genere Kali, è stato avviato uno studio su sei specie legate a condizioni bioclimatiche ed edafiche differenti. In particolare, sono state analizzate e messe a confronto sezioni trasversali di fusto della zona basale, foglie adulte, brattee e plantule, ottenute da campioni vivi coltivati in analoghe condizioni di crescita per minimizzare l’espressione dei caratteri epigenetici.