Journal
PLANT SIGNALING & BEHAVIOR
Volume 9, Issue 2, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.4161/psb.27899
Keywords
Plasmodesmata; size exclusion limit; symplastic transport; callose; reactive oxygen species
Categories
Funding
- USDA/NIFA
- NIH
- NSF
- BARD
- BSF
- Nagase Science and Technology Foundation
- Casio Science Promotion Foundation
- Ohara Foundation for Agricultural Research
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM050224] Funding Source: NIH RePORTER
Ask authors/readers for more resources
Encased in rigid cell walls, plant cells have evolved unique channel structures, plasmodesma (Pd), to create a pathway for molecular exchange between adjacent cells. Pd are basically cytoplasmic channels through the cell wall, which are lined by plasma membrane, and contain a modified strand of ER that spans them. These structures provide cytoplasmic and membrane continuity between connected cells, and that continuity is utilized for short and long distance molecular trafficking. Pd sphincters, made from constricting the Pd openings by outer layers of callose, together with the ER strand that occludes the Pd lumen set the upper limit for the size of molecules that can freely diffuse through the cytoplasmic component of the Pd channel. This limit, called the size exclusion limit (SEL), is a major factor that restricts macromo-lecular transport through Pd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available