Adventitious Rhizogenesis Control : New Developments

Moncousin, C.

doi:10.17660/actahortic.1988.230.9

Cited by 8 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ruzic et al (1984) have proposed the use of MS medium at half of normal strength for rooting improvement of the GF 677 rootstock shoots. Moncousin (1988) suggested that the dilution of salt concentration to half prepare the plants in the tubes for better adaptation to the acclimatisation medium, while shoot growth and leaf size were increased. Reducing mineral concentration of MS medium to half the normal value increased the rooting percentage, root number and root elongation of PR 204/84 (Prunus persica x P. amygdalus) (Fotopoulos and Sotiropoulos 2005).…”

Section: Resultsmentioning

confidence: 99%

Mineral Strength, Sucrose Level and Mannitol Concentration Effects on Cherry Rootstocks Micropropagation

Sarropoulou¹,

Dimassi-Theriou²,

Therios³

2016

AgricultForest

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Mineral Strength, Sucrose Level and Mannitol Concentration Effects on Cherry Rootstocks Micropropagation

Sarropoulou¹,

Dimassi-Theriou²,

Therios³

2016

AgricultForest

View full text Add to dashboard Cite

“…Plants require Zn 2+ ions directly for tryptophan synthesis and indirectly for auxin synthesis [12]. The root process involves a number of physiological adjustments linked to differences in indole-3-acetic acid (IAA) concentration and peroxidase activity [17,18]. During this process, it was discovered that auxin concentration and peroxidase activity are inversely correlated [15,19,20].…”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide Nanoparticles and Fe-Modified Activated Carbon Affecting the In Vitro Growth of Date Palm Plantlets cv. Medjool

et al. 2022

View full text Add to dashboard Cite

The survival and growth of in vitro plantlets are still problematic for the date palm; thus, the application of nanotechnology may provide date palm plantlets that develop faster with enhanced growth and biochemical parameters. Moreover, the usage of Fe-modified activated carbon (Fe-AC) prepared from date palm pits instead of activated charcoal (AC) in tissue culture media during the current investigation can be considered an innovative approach. Furthermore, the effect of zinc oxide nanoparticles (ZnO-NPs) and bulk particles (ZnO-BPs) on the rooting and growth of date palm plantlets and on some physiological indices was also investigated. X-ray diffraction, dynamic light scattering, scanning electron microscopy, and transmission electron microscopy were used to characterize Fe-AC and ZnO-NPs. As detected from the characterization, the particle size was 720 nm for Fe-AC and 60 nm for ZnO-NPs. The obtained results indicated that AC significantly enhanced plantlet growth, plantlet height, number of leaves/plantlet, root length, number of roots/plantlet, and the concentrations of IAA, chlorophyll a and chlorophyll b compared with Fe-AC. On the other hand, sugars and phenols concentrations, and POD and PAL activities were highly increased with Fe-AC. There was no significant difference in terms of plant fresh weight (FW), leaf length, leaf width, protein, amino acids, and carotenoids. ZnO nanoparticles significantly improved plant height, leaf length, leaf width, root length, and the concentrations of IAA, chlorophylls a and b, and carotenoids; in contrast, the bulk form increased roots/plantlet, amino acids, and total sugars. Supplying the MS medium with combinations of ZnO-NPs or ZnO-BPs and AC or Fe-AC significantly increased all growth and physiological parameters. Plant height, leaf length, leaf width, root length, and the concentrations of IAA, protein, and chlorophylls a and b significantly increased when ZnO-NPs were combined with AC. Amino acids, total sugars, carotenoids, and phenols concentrations and the activities of POD and PAL increased when ZnO-BPs and Fe-AC were added together.

show abstract

“…Gaspar (1981) indicated that a decrease in auxin levels occurs at the initiation phase of the rooting process, while Jarvis (1986) sustained the opposite; more recently, Nordstrom and Eliasson (1991) have reported no variation in levels of free auxin throughout the rooting process. This controversy could be due to the fact that adventitious rooting can be divided into very different phases (Moncousin, 1988). It is also certain that endogenous auxin levels have been measured in different plants during the rooting process but a histological study has not always been carried out (Lovell and White, 1986); furthermore, we must take into account that sufficiently selective and sensitive methods for auxin quantification are relatively new (Sandberg et al, 1987).…”

Section: Introductionmentioning

confidence: 99%

Levels of endogenous indole-3-acetic acid and indole-3-acetyl-aspartic acid during adventitious rooting in avocado microcuttings

et al. 1994

View full text Add to dashboard Cite

Quantification of endogenous IAA and lAAsp was carried out during adventitious root formation in avocado microcuttings. Both auxin and conjugate were monitored in control cuttings (rooted in the absence of auxin) as well as in cuttings treated with a rooting promotor (IBA) or an auxin transport inhibitor (TIBA). Additionally, a histological study to follow root differentiation was carried out. In control cuttings IAA levels remained constant throughout the rooting process, however, in IB A-treated cuttings IAA levels increased 2-fold during the first 6 d. Addition of 200 fit* TIBA induced a slight decrease of IAA levels and inhibited root formation. As for lAAsp levels, both control and IBA-treated cuttings showed a big increase before root differentiation occurred and as the process went on, a progressive decrease took place. However, in TIBA-treated cuttings lAAsp levels not only did not increase but diminished progressively during the process. The role of auxin conjugates during the rooting process of avocado is discussed.

show abstract

Adventitious Rhizogenesis Control : New Developments

Cited by 8 publications

References 0 publications

Mineral Strength, Sucrose Level and Mannitol Concentration Effects on Cherry Rootstocks Micropropagation

Mineral Strength, Sucrose Level and Mannitol Concentration Effects on Cherry Rootstocks Micropropagation

Zinc Oxide Nanoparticles and Fe-Modified Activated Carbon Affecting the In Vitro Growth of Date Palm Plantlets cv. Medjool

Levels of endogenous indole-3-acetic acid and indole-3-acetyl-aspartic acid during adventitious rooting in avocado microcuttings

Contact Info

Product

Resources

About