Endogenous phytohormone profiles in Pteris fern species differing in arsenic accumulating ability

0508108 - ÚEB 2020 RIV GB eng J - Journal Article
Zemanová, Veronika - Pavlíková, D. - Dobrev, Petre - Motyka, Václav - Pavlík, Milan
Endogenous phytohormone profiles in Pteris fern species differing in arsenic accumulating ability.
Environmental and Experimental Botany. Roč. 166, OCT (2019), č. článku 103822. ISSN 0098-8472. E-ISSN 1873-7307
R&D Projects: GA ČR(CZ) GA17-10591S; GA MŠMT(CZ) EF16_019/0000738
Institutional support: RVO:61389030
Keywords : crosstalk between phytohormones * Auxin * Cretan brake fern * Plant hormones network * Salicylic acid
OECD category: Biochemical research methods
Impact factor: 4.027, year: 2019
Method of publishing: Open access
http://dx.doi.org/10.1016/j.envexpbot.2019.103822

Phytohormones were analysed in fronds and roots of three Pteris fern varieties with differing abilities in arsenic accumulation. The ferns (hyperaccumulating P. cretica var. Albo-lineata and var. Parkerii, and non-hyperaccumulating P. straminea) were cultivated in a pot experiment 185 days and harvested four times during growth. We found 25 phytohormones and their structural and functional analogues at detectable levels in fronds and roots. Phytohormone correlations between fern fronds and roots indicate a significant role for xylem-phloem transport and highlight the importance of transport in stress response. We observed similarities in phytohormone correlation profiles in the hyperaccumulators P. cretica var. Albo-lineata and var. Parkerii. Profiling of growth and stress hormones in ferns confirms that they have specific phenotypic regulation. Hormonal regulations in the hyperaccumulator P. cretica var. Albo-lineata significantly differed from the non-hyperaccumulator P. straminea.
Permanent Link: http://hdl.handle.net/11104/0299096