Ibáñez Sergio, Carneros Elena, Testillano Pilar S, Pérez-Pérez José Manuel
Instituto de Bioingeniería, Universidad Miguel Hernández, 03202 Elche, Spain.
Pollen Biotechnology of Crop Plants Group, Margarita Salas Center of Biological Research, CIB Margarita Salas-CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain.
Plants (Basel). 2020 Jul 16;9(7):897. doi: 10.3390/plants9070897.
Some plant cells are able to rebuild new organs after tissue damage or in response to definite stress treatments and/or exogenous hormone applications. Whole plants can develop through de novo organogenesis or somatic embryogenesis. Recent findings have enlarged our understanding of the molecular and cellular mechanisms required for tissue reprogramming during plant regeneration. Genetic analyses also suggest the key role of epigenetic regulation during de novo plant organogenesis. A deeper understanding of plant regeneration might help us to enhance tissue culture optimization, with multiple applications in plant micropropagation and green biotechnology. In this review, we will provide additional insights into the physiological and molecular framework of plant regeneration, including both direct and indirect de novo organ formation and somatic embryogenesis, and we will discuss the key role of intrinsic and extrinsic constraints for cell reprogramming during plant regeneration.
一些植物细胞能够在组织受损后或响应特定的胁迫处理和/或外源激素应用时重建新器官。完整植株可通过从头器官发生或体细胞胚胎发生发育而成。最近的研究结果拓宽了我们对植物再生过程中组织重编程所需分子和细胞机制的理解。遗传分析也表明表观遗传调控在植物从头器官发生过程中起着关键作用。对植物再生的深入理解可能有助于我们优化组织培养，在植物微繁殖和绿色生物技术中有多种应用。在这篇综述中，我们将对植物再生的生理和分子框架提供更多见解，包括直接和间接的从头器官形成以及体细胞胚胎发生，并且我们将讨论内在和外在限制因素在植物再生过程中对细胞重编程的关键作用。
