Plant regeneration in zigzag clover (Trifolium medium L.)

Area of Science:

• Plant Biotechnology
• Plant Breeding
• Horticultural Science

Background:

• Zigzag clover (Trifolium medium) is a forage legume with potential agricultural value.
• Efficient plant regeneration methods are crucial for genetic improvement and propagation of Trifolium species.

Purpose of the Study:

• To establish efficient protocols for plant regeneration from explant tissue and callus cultures of zigzag clover (Trifolium medium).
• To investigate regeneration via organogenesis and somatic embryogenesis in two distinct zigzag clover strains.

Main Methods:

• Culture of petiole segments from two zigzag clover strains on L2 or SL2 media.
• Induction of shoot regeneration through organogenesis and somatic embryogenesis.
• Assessment of morphological characteristics of regenerated plants.

Main Results:

• Successful shoot regeneration via organogenesis from petiole explants of both zigzag clover strains.
• Direct shoot regeneration observed as early as eight days post-culture initiation.
• Somatic embryogenesis from petiole-derived calli also yielded regenerated shoots.
• Regenerated plants exhibited normal morphological characteristics.

Conclusions:

• Both organogenesis and somatic embryogenesis are viable pathways for regenerating zigzag clover.
• The established methods provide a foundation for further genetic manipulation and breeding of Trifolium medium.