Structure, function and membrane interactions of plant annexins: an update

Area of Science:

• Plant molecular biology
• Biochemistry
• Cellular stress responses

Background:

• Plant annexins are a diverse protein group known for membrane association.
• Their established roles include stress responses like drought tolerance and wound healing.
• Molecular mechanisms underlying these functions remain largely unelucidated.

Purpose of the Study:

• To review current knowledge on plant annexin molecular, functional, and structural properties.
• To emphasize less-covered aspects such as post-translational modifications.
• To discuss roles in polar growth and membrane stabilization.

Main Methods:

• Literature review and synthesis of existing research on plant annexins.
• Analysis of studies focusing on molecular mechanisms, structure-function relationships.
• Compilation of data on post-translational modifications and physiological roles.

Main Results:

• Plant annexins share membrane association but exhibit divergent molecular mechanisms.
• Key roles in stress responses (wound healing, drought tolerance) are confirmed.
• Emerging evidence points to functions in polar growth and membrane stabilization.

Conclusions:

• Plant annexins are versatile proteins with critical roles in plant stress adaptation.
• Further research into their post-translational modifications and specific molecular functions is warranted.
• Understanding plant annexins offers potential for improving crop resilience.