Thidiazuron-induced abnormalities in plant tissue cultures

Area of Science:

• Plant Biotechnology
• Plant Physiology
• Molecular Biology

Background:

• Thidiazuron (TDZ) is a synthetic plant growth regulator widely used in plant tissue culture.
• It effectively promotes organogenesis, regeneration, and developmental pathways like somatic embryogenesis and in vitro flowering.
• TDZ has been crucial for establishing in vitro cultures, particularly for recalcitrant and woody plants, facilitating genetic improvement.

Purpose of the Study:

• To review the morphological, physiological, and cytogenetic abnormalities associated with TDZ use in plant in vitro culture.
• To summarize these detrimental effects across various plant species.

Main Methods:

• Literature review of studies reporting TDZ application in plant tissue culture.
• Analysis and synthesis of reported abnormalities (morphological, physiological, cytogenetic).

Main Results:

• TDZ application can lead to significant morphological abnormalities, such as altered leaf development and growth patterns.
• Physiological disruptions include impacts on photosynthesis and hormone balance.
• Cytogenetic abnormalities, such as chromosomal aberrations, have been observed in TDZ-treated plants.

Conclusions:

• While TDZ is highly effective for plant regeneration, its use is linked to various in vitro abnormalities.
• Understanding and mitigating these TDZ-induced abnormalities is crucial for successful genetic transformation and improvement of plant species.
• Further research is needed to optimize TDZ application protocols and minimize adverse effects.