Monitoring of changes in 5-n-alkylresorcinols during wheat seedling development
Elżbieta Magnucka , Małgorzata Oksińska , Stanisław Pietr
AbstractFor seven days of wheat growth, caryopsis remained the main source of 5-n-alkylresorcinols with C19 and/or C21 homolog as a main compound. Shoot contained small amount of these phenolic lipids; their average content was 3.23% of level obtained in the whole seedling. Moreover, 41.38% of resorcinolic lipids of seven-day-old shoot was accumulated in part of leaf covered by coleoptile. Interestingly, a removal of 1.07% of the primary pool of kernel alkylresorcinols by short-term washing (10 s) of wheat seed with acetone before planting decreased their level only in seed of seven-day old seedling. Compared to the respective controls, this treatment did not affect the amount of these lipids in the green part of seedling that proved that de novo synthesis of 5-n-alkylresorcinols takes place in shoots. The very similar homolog profiles of these lipids in four- A nd seven-day-old shoots turned out to be markedly less diversified than those found in respective seed samples. Compared to the mature wheat caryopsis, the rise in the content of very-long-chain homologs was observed only in the oldest shoot. Their increased accumulation was probably connected with formation of cuticular layer providing the defensive barrier against various phytopathogens.
|Journal series||Zeitschrift für Naturforschung. C-A Journal of Biosciences, [Zeitschrift für Naturforschung - Section C Journal of Biosciences], ISSN 0939-5075, e-ISSN 1865-7125, (N/A 40 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||caryopsis; resorcinolic lipids; shoot; wheat|
|Score||= 40.0, 26-02-2021, ArticleFromJournal|
|Publication indicators||= 0; = 0; : 2017 = 0.448; : 2019 = 1.238 (2) - 2019=1.194 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.