Nutrition supply affects the activity of pathogenesis-related β-1,3-glucanases and chitinases in wheat

0474309 - BÚ 2018 RIV NL eng J - Článek v odborném periodiku
Maglovski, M. - Gregorová, Z. - Rybanský, L. - Mészáros, P. - Moravčíková, J. - Hauptvogel, P. - Adamec, Lubomír - Matušíková, I.
Nutrition supply affects the activity of pathogenesis-related β-1,3-glucanases and chitinases in wheat.
Plant Growth Regulation. Roč. 81, č. 3 (2017), s. 443-453. ISSN 0167-6903. E-ISSN 1573-5087
Institucionální podpora: RVO:67985939
Klíčová slova: glucanhydrolases * chitinases * nitrogen
Obor OECD: Plant sciences, botany
Impakt faktor: 2.081, rok: 2017

We studied profiles and activities of glucanases and chitinases at isoforms level in wheat plants grown hydroponically at N doses corresponding to limited (0, 0.75 and 5.25 mM N), optimal N (7.5 mM N) as well as excess (15, 30 and 35 mM N) N supply in the form of nitrate.
Several isoforms of both enzymes in wheat leaves and/or shoots clearly depended on N supply, while their activities rather depended on organ type. Furthermore, glucanases and chitinases appeared to be regulated in an opposite way. The activities of particular chitinases
and glucanases correlated with a proline content that has multiple functions in plants. Proline typically accumulated with increasing the N supply when certain excessive N doses induced the gene for proline synthase (P5CS) in shoots and that for ornithine aminotransferase (OAT) in roots. This work points to a N-dependent activity of several defense-related compounds suggesting the possibly of altered plant defense potential under various N regimes.
Trvalý link: http://hdl.handle.net/11104/0271415