Plasmodesmata in phloem: different gateways for different cargoes

Current Opinion in Plant Biology
Jung-Youn Lee, Margaret Frank

Abstract

The long-distance transport of sugars and nutrients through the phloem is essential for the proper function and growth of vascular plants. However, in addition to essential nutrients and sugars, phloem sap also contains small molecules (e.g. hormones) as well as a diverse population of macromolecules (i.e. proteins small RNAs, and mRNAs), the endogenous functions of which remain largely unknown. Understanding the cellular origins of these mobile macromolecules, their path into and out of the phloem translocation stream, and their fate at their new destination is essential for characterizing their presumptive function. Specialized plasmodesmal connections that regulate phloem entry and exit are central to all of these processes. Here, we highlight new discoveries underscoring plasmodesmal structure and function during unloading of various molecules in the sink, and discuss how these findings shape a new view for the potential function of phloem-mobile macromolecules.

References

Nov 26, 2008·Annual Review of Plant Biology·Robert Turgeon, Shmuel Wolf
May 21, 2009·The Plant Journal : for Cell and Molecular Biology·Nien-Chen Huang, Tien-Shin Yu
Mar 28, 2012·The Plant Journal : for Cell and Molecular Biology·Michael Knoblauch, Karl Oparka
Apr 24, 2013·The Plant Journal : for Cell and Molecular Biology·Soo-Cheul YooWilliam J Lucas
Sep 26, 2014·American Journal of Botany·Jung-Ok HeoYkä Helariutta
Oct 21, 2015·BMC Plant Biology·Yingzhen YangGan-Yuan Zhong
Jan 21, 2016·Proceedings of the National Academy of Sciences of the United States of America·Mathew G LewseyJoseph R Ecker
Mar 10, 2016·The Plant Cell·Alexander CalderwoodRichard J Morris
Jan 1, 2015·Nature Plants·Christoph J ThiemeFriedrich Kragler
Jun 2, 2016·Nature Plants·Zhaoliang ZhangWilliam J Lucas
Jun 9, 2016·The Plant Cell·Wenna ZhangFriedrich Kragler
Sep 8, 2016·The Plant Cell·Danae Simone Genevieve PaultreKarl J Oparka
Jan 27, 2017·Annual Review of Plant Biology·Byung-Kook Ham, William J Lucas

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Citations

Apr 12, 2019·Journal of Experimental Botany·Aart J E van Bel, Rita Musetti
Dec 25, 2019·Journal of Experimental Botany·Dawei Yan, Yao Liu
May 27, 2020·Annual Review of Virology·Madhu KappagantuJames N Culver
Dec 18, 2019·PeerJ·Eugeny TolstykoAndrey Solovyev
Jan 27, 2019·Plants·Lothar Kalmbach, Ykä Helariutta
Jan 21, 2021·Trends in Plant Science·Maria L Sorkin, Dmitri A Nusinow
Mar 5, 2021·Frontiers in Plant Science·Min Diao, Shanjin Huang

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