Transcriptional switch for programmed cell death in pith parenchyma of sorghum stems

Proceedings of the National Academy of Sciences of the United States of America
Masaru FujimotoNobuhiro Tsutsumi

Abstract

Pith parenchyma cells store water in various plant organs. These cells are especially important for producing sugar and ethanol from the sugar juice of grass stems. In many plants, the death of pith parenchyma cells reduces their stem water content. Previous studies proposed that a hypothetical D gene might be responsible for the death of stem pith parenchyma cells in Sorghum bicolor, a promising energy grass, although its identity and molecular function are unknown. Here, we identify the D gene and note that it is located on chromosome 6 in agreement with previous predictions. Sorghum varieties with a functional D allele had stems enriched with dry, dead pith parenchyma cells, whereas those with each of six independent nonfunctional D alleles had stems enriched with juicy, living pith parenchyma cells. D expression was spatiotemporally coupled with the appearance of dead, air-filled pith parenchyma cells in sorghum stems. Among D homologs that are present in flowering plants, Arabidopsis ANAC074 also is required for the death of stem pith parenchyma cells. D and ANAC074 encode previously uncharacterized NAC transcription factors and are sufficient to ectopically induce programmed death of Arabidopsis culture cells via the acti...Continue Reading

References

Feb 15, 2005·Trends in Plant Science·Addie Nina OlsenKaren Skriver
Aug 17, 2005·Genes & Development·Minoru KuboTaku Demura
Feb 9, 2006·Cell Death and Differentiation·E P Beers
Mar 11, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·G SrinivasN Seetharama
Jun 30, 2010·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·E S Mace, D R Jordan
Nov 3, 2010·The New Phytologist·Bianka SteffensMargret Sauter
Dec 8, 2010·Proceedings of the National Academy of Sciences of the United States of America·Huanzhong WangRichard A Dixon
Feb 3, 2011·The Plant Journal : for Cell and Molecular Biology·Masatoshi YamaguchiTaku Demura
Apr 16, 2011·Cell Death and Differentiation·W G van DoornP V Bozhkov
Dec 23, 2011·Trends in Plant Science·Pablo SanchezThomas Greb
Oct 9, 2012·Trends in Plant Science·Kazuhiko YamasakiShigeyuki Yokoyama
Dec 3, 2014·Trends in Plant Science·Tom Van HautegemMoritz K Nowack
Oct 1, 2004·The New Phytologist·Louisa A Rogers, Malcolm M Campbell

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Citations

Mar 16, 2019·Genes·Aleksandra Swida-Barteczka, Zofia Szweykowska-Kulinska
Nov 5, 2019·Frontiers in Plant Science·Zamir K PunjaDarren Sutton
Nov 1, 2020·Proceedings of the National Academy of Sciences of the United States of America·Kirby T NilsenCurtis J Pozniak
Mar 4, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Huaiqing HaoHai-Chun Jing
Nov 2, 2021·The Plant Journal : for Cell and Molecular Biology·Nam V HoangJi-Young Lee

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