Expansion of potato cells in response to jasmonic acid

Effects of Jasmonates on in vitro Tuberization in Several Potato Cultivars that Differ Greatly in Maturity

“…A large quantity of JA must be transported to axillary buds, the site of tuberization, to induce tuberization under long-day conditions. The methyl ester of JA OAMe) is a volatile compound, and we have previously reported that airborne JA-Me (vapor of JA-Me) is capable of inducing expansion of potato cells (Takahashi et al, 1994). Since airborneJA-Me is directly applied to the axillary buds, it might be able to induce tuberization in the segments of in vitro layered shoots.…”

The effects of explant rotation, medium types, JA and GA3 additions on in vitro microtuber production from potato (Solanum tuberosum L.)

“…In regards to microtuber weight, the highest weight value (176 mg/tuber) resulted from the twophase, control medium. In similar studies [16,53] the researchers obtained a higher number of microtubers with greater weight, when JA was added to the medium. In potatoes, tuberization starts with the widening of the sub-apical meristem of stolons and jasmonates, by preventing the longitudinal growth of stolons, stimulate the widening of the sub-apical meristem.…”

Evolutionary History of the GH3 Family Based on 48 Sequenced Plants and Identification of Jasmonic Acid-Relate GH3 Genes in <em>Solanum tuberosum</em>

“…None of these genes had high expression in young tubers or mature tubers. Combined with results of research by Koda and others [29,30], the related with StGH3 genes and potato tuber was not due to these own high expression in tuber, but indirectly proved GH3 gene regulation tuber cell enlargement through the regulated JA biological processes.…”

“…We mainly focused on the group III genes which were related to the JA pathway through prediction. Some researchers used MeJA to treat the potato tuber slice and tissue culture seedling, and results showed that JA and MeJA have an induced dilation effect on potato tuber cells and had a strong tuber inducing activity; also treating a single stalk of potato could promote tuber formation [29,30] Thus, qRT-PCR was used to analyze the genes expression.…”