Advances in Adventitious Root Formation of In Vitro Cultures

Dear Colleagues,

Plant micropropagation is a powerful tool for cloning and the ex situ conservation of endangered species, as well as for the large-scale production of selected and economically relevant genotypes and varieties. The de novo organogenesis of roots is a crucial step in vegetative propagation systems. However, adventitious rooting is often a limiting factor of in vitro propagation, particularly for difficult-to-root species, and it remains one of the most challenging issues in the successful production of plants.

Adventitious root formation includes the reprograming of somatic cells, which change their fate towards the establishment of root founder cells (induction phase), followed by the development of adventitious root primordia (formation phase), and finally root emergence (expression phase). In vitro root regeneration is affected by external and endogenous factors, such as wounding, etiolation, genotype, maturation of the mother explant, plant growth regulators, and basal culture medium, among others. Additionally, de novo root organogenesis is regulated through molecular mechanisms like gene expression, transcription factors, hormone signaling, and epigenetic regulation. Plant acclimatization is also an important factor for in vitro plan production.

In this Special Issue, you are invited to share your research on advances in the adventitious root formation of in vitro cultures, plant acclimatization, and the understanding of the molecular mechanisms underlying root regeneration and root development.

Dr. Conchi Sánchez
Dr. Saleta Rico Santos
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• acclimatization
• adventitious rooting
• gene expression
• gene regulation
• hormone signaling
• micropropagation
• regeneration
• transcriptomics
• epigenetics