scholarly journals Adventitious Root Formation in Tree Species

Plants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 486
Author(s):  
Carmen Díaz-Sala

Adventitious root formation is a postembryonic organogenesis process induced by differentiated cells other than those specified to develop roots [...]

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.


2014 ◽  
Vol 151 (2) ◽  
pp. 192-198 ◽  
Author(s):  
Valérie Legué ◽  
Adeline Rigal ◽  
Rishikesh P. Bhalerao

Plants ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 321 ◽  
Author(s):  
Ricci Ada ◽  
Rolli Enrico

The success of vegetative propagation programmes strongly depends on adventitious rooting, a postembryonic developmental process whereby new roots can be induced from differentiated cells in positions where normally they do not arise. This auxin-dependent organogenesis has been studied at molecular, cellular, and developmental levels, and our knowledge of the process has improved in recent years. However, bioactive compounds that enhance adventitious root formation and possibly reduce undesirable auxinic side effects are still needed to ameliorate this process. From this point of view, our structure–activity relationship studies concerning urea derivatives revealed that some of them, more specifically, the N,N′-bis-(2,3-methylenedioxyphenyl)urea (2,3-MDPU), the N,N′-bis-(3,4-methylenedioxyphenyl)urea (3,4-MDPU), the 1,3-di(benzo[d]oxazol-5-yl)urea (5-BDPU), and the 1,3-di(benzo[d]oxazol-6-yl)urea (6-BDPU), constitute a category of adventitious rooting adjuvants. The results of our studies are presented here, in order either to highlight the positive effects of the supplementation of these urea derivatives, or to better understand the nature of their interaction with auxin.


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