IAA oxidase activity in relation to adventitious root formation on stem cuttings of some forest tree species

1981 ◽  
Vol 37 (12) ◽  
pp. 1273-1274 ◽  
Author(s):  
M. P. Bansal ◽  
K. K. Nanda
BMC Genomics ◽  
2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Carlos Villacorta-Martín ◽  
Ana Belén Sánchez-García ◽  
Joan Villanova ◽  
Antonio Cano ◽  
Miranda van de Rhee ◽  
...  

HortScience ◽  
2020 ◽  
Vol 55 (9) ◽  
pp. 1463-1467 ◽  
Author(s):  
Benjamin E. Deloso ◽  
Anders J. Lindström ◽  
Frank A. Camacho ◽  
Thomas E. Marler

The influences of indole-3-butyric acid (IBA) concentrations of 0–30 mg·g−1 on the success and speed of adventitious root development of Zamia furfuracea L.f. and Zamia integrifolia L.f. stem cuttings were determined. Root formation success for both species was greater than 95%. The IBA concentrations did not influence the speed of root development for Z. furfuracea, but the Z. integrifolia cuttings that received IBA concentration of 3 mg·g−1 generated adventitious roots more slowly than the cuttings in the control group. The ending dry weights of the stems, leaves, and roots were not influenced by IBA concentration for either species. Our results indicated that adventitious root formation on stem cuttings of these two Zamia species is successful without horticultural application of IBA. Additional IBA studies are needed on the other 300+ cycad species, especially those that are in a threatened category.


2020 ◽  
Vol 13 ◽  
pp. 194008292092059 ◽  
Author(s):  
Thomas E. Marler ◽  
Benjamin E. Deloso ◽  
Gil N. Cruz

Cycad stem cuttings will develop adventitious roots if the open wound is first treated with a sealant to protect the exposed parenchyma tissue. The commercial pruning wound sealant that is often employed for this purpose is not available in many locations. We used commonly available products as a prophylactic sealant on Cycas edentata , Cycas micronesica , and Cycas nitida cuttings to determine efficacy for sealing the wound and enabling adventitious root formation. Success was quantified after 7 months in a sand propagation substrate. Mortality was 100% for control cuttings with no wound sealant and about 60% for cuttings with candle wax as the sealant. Cuttings that received petroleum jelly, lanolin paste, modeling clay, honeycomb wax, or commercial pruning sealant exhibited 100% survival. Success in adventitious root formation ranged from 75% to 92% among the five successful prophylactic treatments and did not differ among the species. The results indicated that four of the products we evaluated were as effective as commercial pruning sealant for treating the exposed parenchyma on Cycas stem cuttings and enabling asexual propagation success. The candle wax was less effective because it was brittle and cracked to expose the stem’s parenchyma tissue.


PLoS ONE ◽  
2018 ◽  
Vol 13 (4) ◽  
pp. e0196663 ◽  
Author(s):  
Ana Belén Sánchez-García ◽  
Sergio Ibáñez ◽  
Antonio Cano ◽  
Manuel Acosta ◽  
José Manuel Pérez-Pérez

Plants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1789
Author(s):  
Carmen Díaz-Sala

Adventitious root formation is an organogenic process, regulated at several levels, that is crucial for the successful vegetative propagation of numerous plants. In many tree species, recalcitrance to adventitious root formation is a major limitation in the clonal propagation of elite germplasms. Information on the mechanisms underlying the competence for adventitious root formation is still limited. Therefore, increasing our understanding of the mechanisms that enable differentiated somatic cells to switch their fates and develop into root meristematic cells, especially those involved in cell developmental aging and maturation, is a priority in adventitious root-related research. The dynamic cell wall–cytoskeleton, along with soluble factors, such as cellular signals or transcriptional regulators, may be involved in adult cell responses to intrinsic or extrinsic factors, resulting in maintenance, induction of root meristematic cell formation, or entrance into another differentiating pathway.


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