The walnut shell network: 3D visualisation of symplastic and apoplastic transport routes in sclerenchyma tissue.

ABSTRACT:

Main conclusion

High symplastic connectivity via pits was linked to the lignification of the developing walnut shell. With maturation, this network lessened, whereas apoplastic intercellular space remained and became relevant for shell drying. The shell of the walnut (Juglans regia) sclerifies within several weeks. This fast secondary cell wall thickening and lignification of the shell tissue might need metabolites from the supporting husk tissue. To reveal the transport capacity of the walnut shell tissue and its connection to the husk, we visualised the symplastic and apoplastic transport routes during shell development by serial block face-SEM and 3D reconstruction. We found an extensive network of pit channels connecting the cells within the shell tissue, but even more towards

SUBMITTER: Antreich SJ 

PROVIDER: S-EPMC9325819 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature