Effect of jasmonic acid on cold-storage of Taraxacum pieninicum encapsulated shoot tips

• Published in: Plant cell, tissue and organ culture tissue and organ culture, 2018-12, Vol.135 (3), p.487-497
• Main Authors: Kamińska, Monika, Tretyn, Andrzej, Trejgell, Alina
• Format: Article
• Language: English
• Subjects: Acclimatization; Biomedical and Life Sciences; Cold storage; Darkness; Elongation; Jasmonic acid; Life Sciences; Micropropagation; Original Article; Plant Genetics and Genomics; Plant Pathology; Plant Physiology; Plant Sciences; Plantlets; Plants (botany); Proline; Regrowth; Rooting; Roots; Seeds; Shoots; Taraxacum; Tips
• ISSN: 0167-6857; 1573-5044
• DOI: 10.1007/s11240-018-1481-y

Jasmonic acid is involved in plants response to various abiotic and biotic stresses. The aim of this study was to examine physiological response of Taraxacum pieninicum to JA-treatments during shoots micropropagation and during cold storage at 4 °C under reduced light or in the darkness. Obtained results indicated that JA during preculture reduced significantly growth of shoots without impact on proliferation rate. During cold storage JA (24–72 µM) limited effect of cold stress what was manifested by reduced accumulation of proline and TBARS. Growth inhibition of the stored tissue was more effective when JA was inside synthetic seeds structure than after preculture on medium supplemented with JA. Shoot proliferation and rooting were effective during regrowth after cold storage combined with JA exposure. Only elongation of roots was inhibited after storage in this conditions. However, length of roots did not affect acclimatization of plantlets to ex vitro conditions.