Stimulatory effects of jasmonic acid on potato stem node and protoplast culture

Ravnikar, Maja; Vilhar, Barbara; Gogala, N.

doi:10.1007/bf00193840

Cited by 82 publications

(63 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is especially true with regard to growth inhibition, where both compounds display similar inhibitory activities. In particular, longitudinal growth of potato roots and shoots is inhibited by micromolar concentrations of JA (Ravnikar et al, 1992). Therefore, the inability of JA to suppress sprouting in FLD-treated tubers further strengthens the hypothesis that ABA is not merely acting as a growth inhibitor but rather is restoring dormancy in FLD-treated microtubers.…”

Section: Dlscusslonsupporting

confidence: 52%

Role of Endogenous Abscisic Acid in Potato Microtuber Dormancy

Suttle

Hultstrand

1994

Plant Physiol.

View full text Add to dashboard Cite

Potato (Solanum tuberosum L. cv Russet Burbank) microtubers generated in vitro from single-node explants contained substantial amounts (approximately 250 pmol/g fresh weight) of free abscisic acid (ABA) and were completely dormant for a minimum of 12 weeks. Microtubers that developed in the presence of 10 NM fluridone (FLD) contained considerably reduced amounts (approximately 5-25 pmol/g fresh weight) of free ABA and exhibited a precocious loss of dormancy. lnclusion of exogenous racemic ABA in the FLD-containing medium suppressed the premature sprouting of these microtubers in a dose-dependent manner. At a concentration of 50 p~, exogenous ABA restored internal ABA levels to control values and completely inhibited FLD-induced precocious sprouting. Exogenous jasmonic acid was ineffective in suppressing FLD-induced sprouting. Application of FLD to preformed, fully dormant microtubers also resulted in a reduction in internal ABA content and precocious sprouting. These results indicate that endogenous ABA is essential for the induction and maintenance of potato microtuber dormancy.

show abstract

Section: Dlscusslonsupporting

confidence: 52%

Role of Endogenous Abscisic Acid in Potato Microtuber Dormancy

Suttle

Hultstrand

1994

Plant Physiol.

View full text Add to dashboard Cite

show abstract

“…Addition of JA resulted in a 5.67-fold increase in shoot length compared to the control. The results of the present experiment are in agreement with those of Ravnikar et al (1992), Martin-Closas and Pelacho (1997), Martin-Closas et al (2000), and Pruski et al (2002), who suggested that JA could play an important role by inducing a general increase in the vegetative development of the in vitro-cultured potato explants. The results of this study show similarities with those of , Dermastia et al (1994), and Dermastia et al (1996).…”

Section: Shoot Lengthsupporting

confidence: 93%

“…showed that meristem growth induction medium supplemented with 0.5 -10 μM JA increased the number of potato meristems, which developed buds without symptoms of senescence. Addition of JA to the growth medium affected the vegetative development of plantlets ) and stimulated root formation of the in vitro cultured potato explants (Ravnikar et al 1992). Zhang et al (2006) showed that the application of 0.2-2.0 mg·dm -3 JA resulted in a significant increase in shoot fresh mass, as well as the number and the root length of plantlets.…”

Section: Introductionmentioning

confidence: 99%

Uzun Gün Şartlarında Patates (Solanum tuberosum L.)’in Mikroçoğaltımında Jasmonik Asidin Etkisi

Kumlay¹

2016

Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi

View full text Add to dashboard Cite

Meristem derived in vitro plantlets of potato (Solanum tuberosum L.) cultivars Pasinler, Granola, and Caspar were micropropagated on agar-solidified MS medium containing different concentrations of jasmonic acid (JA) using single-node stem cuttings. The results of the study showed that inclusion of 1.0 µM JA in the MS medium provided a substantial and visible increase in most of the plantlet characteristics studied and the effect of this concentration was more pronounced compared to the control and all other JA concentrations. The highest number of shoots (8.00), nodes (19.00), leaves (19.00), and roots (15.75) on cv. Caspar and a maximum shoot length (15.13 cm) was observed on cv. Granola from 1.0 µM JA concentration. This concentration of JA also helped to induce longest roots (14.95 cm) on cv. Pasinler. The highest plantlet fresh weight from cv. Pasinler (649.38 mg), and cv. Caspar (630.18 mg), and maximum dry weight of plantlets from cv. Pasinler (98.58 mg), cv. Caspar (93.89 mg) and cv. Granola (79.03 mg) were noted on MS medium containing 1.0 µM of JA. Since the application of JA accelerates the multiplication of young plantlets throughout the year without depending on the season, this allows fast commercial propagation of new potato cultivars. These results may also serve as basis for the mass production of these economically important potato cultivars through in vitro micropropagation techniques and microtuberization studies.

show abstract

“…RAVNIKAR et al (1992) also observed similar effects in the application of jasmonic acid in potato, and that BAUSHER &YELENOSKY (1986) andBARNES et al (1989) reported restrictions in root development of citrus, soybeans and corn treated with triazoles. Figure 1 shows that in the second week of root sampling, in the treatment with a dose of 800g c.p.…”

Section: Resultsmentioning

confidence: 54%