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Article

Endogenous Polyamines and Ethylene Biosynthesis in Relation to Germination of Osmoprimed Brassica napus Seeds under Salt Stress

1
Department of Plant Physiology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
2
Groupe de Recherche en Physiologie Végétale (GRPV), Earth and Life Institute–Agronomy (ELI-A), Université Catholique de Louvain, Croix du Sud 45, boîte L7.07.13, B-1348 Louvain-la-Neuve, Belgium
3
Institute of Biochemistry and Biophysics, Polish Academy of Science, ul. Pawińskiego 5A, 02-106 Warszawa, Poland
*
Author to whom correspondence should be addressed.
Academic Editor: Ricardo Aroca
Int. J. Mol. Sci. 2022, 23(1), 349; https://doi.org/10.3390/ijms23010349
Received: 3 December 2021 / Revised: 21 December 2021 / Accepted: 23 December 2021 / Published: 29 December 2021
(This article belongs to the Special Issue Metabolic Processes during Seed Germination)
Currently, seed priming is reported as an efficient and low-cost approach to increase crop yield, which could not only promote seed germination and improve plant growth state but also increase abiotic stress tolerance. Salinity represents one of the most significant abiotic stresses that alters multiple processes in plants. The accumulation of polyamines (PAs) in response to salt stress is one of the most remarkable plant metabolic responses. This paper examined the effect of osmopriming on endogenous polyamine metabolism at the germination and early seedling development of Brassica napus in relation to salinity tolerance. Free, conjugated and bound polyamines were analyzed, and changes in their accumulation were discussed with literature data. The most remarkable differences between the corresponding osmoprimed and unprimed seeds were visible in the free (spermine) and conjugated (putrescine, spermidine) fractions. The arginine decarboxylase pathway seems to be responsible for the accumulation of PAs in primed seeds. The obvious impact of seed priming on tyramine accumulation was also demonstrated. Moreover, the level of ethylene increased considerably in seedlings issued from primed seeds exposed to salt stress. It can be concluded that the polyamines are involved in creating the beneficial effect of osmopriming on germination and early growth of Brassica napus seedlings under saline conditions through moderate changes in their biosynthesis and accumulation. View Full-Text
Keywords: germination; polyamines; priming; salinity; seeds germination; polyamines; priming; salinity; seeds
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MDPI and ACS Style

Lechowska, K.; Wojtyla, Ł.; Quinet, M.; Kubala, S.; Lutts, S.; Garnczarska, M. Endogenous Polyamines and Ethylene Biosynthesis in Relation to Germination of Osmoprimed Brassica napus Seeds under Salt Stress. Int. J. Mol. Sci. 2022, 23, 349. https://doi.org/10.3390/ijms23010349

AMA Style

Lechowska K, Wojtyla Ł, Quinet M, Kubala S, Lutts S, Garnczarska M. Endogenous Polyamines and Ethylene Biosynthesis in Relation to Germination of Osmoprimed Brassica napus Seeds under Salt Stress. International Journal of Molecular Sciences. 2022; 23(1):349. https://doi.org/10.3390/ijms23010349

Chicago/Turabian Style

Lechowska, Katarzyna, Łukasz Wojtyla, Muriel Quinet, Szymon Kubala, Stanley Lutts, and Małgorzata Garnczarska. 2022. "Endogenous Polyamines and Ethylene Biosynthesis in Relation to Germination of Osmoprimed Brassica napus Seeds under Salt Stress" International Journal of Molecular Sciences 23, no. 1: 349. https://doi.org/10.3390/ijms23010349

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