Plasmodesmata and intercellular molecular traffic control

• DOI: 10.1111/nph.19666
• Publication Date: 2024-03-18T03:45:50Z
• Authors: Estee E. Tee; Christine Faulkner
• Keywords: Plasmodesma; Plant cell

Summary Plasmodesmata are plasma membrane‐lined connections that join plant cells to their neighbours, establishing an intercellular cytoplasmic continuum through which molecules can travel between cells, tissues, and organs. As plasmodesmata connect almost all in plants, molecular traffic carries information resources across a range of scales, but dynamic control plasmodesmal aperture change the possible domains exchange under different conditions. Plasmodesmal is controlled by specialised signalling cascades accommodated spatially discrete membrane cell wall domains. Thus, composition defines capacity for trafficking. Further, shape density likewise define trafficking capacity, with walls types hosting numbers forms drive flux physiologically important directions. The travels ranges from small metabolites proteins, possibly even larger mRNAs. Smaller transmitted via passive mechanisms how efficiently trafficked remains key question biology. How formed, they take, what made of, passes them regulate underpinning wide physiology.