Jasmonate effect on in vitro tuberization of potato (Solanum tuberosum L.) cultivars under light and dark conditions

Effects of jasmonic acid (JA) on in vitro tuberization of six potato cultivars were examined. Tuberization was carried out in the dark, or with 8 h photoperiod on MS media with vitamins, 8% sucrose, 0.6% agar and either 2.5 μM JA (JAMed) or no JA using explants either preconditioned with 2.5 μM JA (...

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Published inPotato research Vol. 44; no. 4; pp. 315 - 325
Main Authors PRUSKI, K, DUPLESSIS, P, LEWIS, T, ASTATKIE, T, NOWAK, J, STRUIK, P. C
Format Journal Article
LanguageEnglish
Published Wageningen European Association for Potato Research 01.12.2001
Springer Nature B.V
Subjects
acid
Agronomy. Soil science and plant productions
Biological and medical sciences
Cultivars
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
growth
induction
invitro
microtubers
temporary immersion
Vegetative propagation. Micropropagation
Vegetative propagation. Sowing and planting. Harvesting
Vitamins
Plant production
Terpenoid
Solanum tuberosum
Micropropagation
Photoperiod
Tuberization
Experimental study
Microtuber
Chemical treatment
Dicotyledones
Angiospermae
Tuber
Plant growth substance
Spermatophyta
Tuber plant
Solanaceae
Cultivar
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Summary:Effects of jasmonic acid (JA) on in vitro tuberization of six potato cultivars were examined. Tuberization was carried out in the dark, or with 8 h photoperiod on MS media with vitamins, 8% sucrose, 0.6% agar and either 2.5 μM JA (JAMed) or no JA using explants either preconditioned with 2.5 μM JA (JAPret) or not. Cultivars Amisk, Russet Burbank, Sangre and Umatilla Russet produced the most (1.0-1.7) and the largest microtubers per explant. Tuberization was inconsistent in Shepody and poor in Atlantic. All cultivars tuberized significantly better in 8 h than in the dark. JA effects were cultivar specific and larger in the dark than in light. In the dark, Amisk, Atlantic and Umatila Russet tuberized better in JAMed than in JAPret. These cultivars did not benefit from JA treatments in light. Russet Burbank and Sangre tuberized in the dark better from JAPret cuttings than on JAMed medium. JA had no effect on tuberization in Shepody. JA double treatment in light vs. control and individual JA treatments significantly reduced tuberization in Shepody and Russet Burbank.[PUBLICATION ABSTRACT]
ISSN:0014-3065
1871-4528
DOI:10.1007/bf02358592