The effect of glutathione and mannitol on androgenesis in anther and isolated microspore cultures of rye (Secale cereale L.)

0539370 - ÚEB 2021 RIV NL eng J - Journal Article
Zieliński, K. - Krzewska, M. - Żur, I. - Juzoń, K. - Kopeć, P. - Nowicka, Anna - Moravčiková, J. - Skrzypek, E. - Dubas, E.
The effect of glutathione and mannitol on androgenesis in anther and isolated microspore cultures of rye (Secale cereale L.).
Plant Cell, Tissue and Organ Culture. Roč. 140, č. 3 (2020), s. 577-592. ISSN 0167-6857. E-ISSN 1573-5044
Institutional support: RVO:61389030
Keywords : Androgenesis responsiveness * Glutathione * Mannitol * Microspore embryogenesis * Rye
OECD category: Plant sciences, botany
Impact factor: 2.711, year: 2020
Method of publishing: Open access
http://doi.org/10.1007/s11240-019-01754-9

Androgenic responsiveness in anther (AC) and isolated microspore cultures (MC) was analysed using 15 lines of Polish winter rye (Secale cereale L.). The effect of low temperature (LT) alone or in combination with osmotic stress induced by mannitol treatment (MAN) and/or with reduced glutathione (GSH) on the effectiveness of the process was studied. Interestingly, each treatment had a different effect on microspore (mcs) vitality and capability to divide symmetrically. The first criterion for successful embryogenesis was to exceed the threshold number of at least 25% dividing microspores, which determined ‘embryogenic suspension culture’. In some configurations a spectacular effect was achieved, especially in lines highly recalcitrant to androgenesis induction. Relatively high effectiveness of androgenesis induction (up to 4.58 AS per 105 mcs per spike in MC and 21.29 AS per spike in AC) showed that the developed protocol with GSH and/or MAN tiller pre-treatments overcomes the genotypic barrier for androgenesis initiation in rye. Moreover, relatively high, spontaneous genome diploidization (55%) of regenerated plants demonstrated that the described protocols could be effectively integrated into conventional rye breeding programmes.
Permanent Link: http://hdl.handle.net/11104/0317056