Disruption of interfascicular fiber differentiation in an Arabidopsis mutant

The Plant Cell
Ruiqin ZhongZ H Ye

Abstract

Arabidopsis develops interfascicular fibers in stems for needed support of shoots. To study the molecular mechanisms controlling fiber differentiation, we isolated an interfascicular fiber mutant (ifl1) by screening ethyl methanesulfonate-mutagenized Arabidopsis populations. This mutant lacks normal interfascicular fibers in stems. Interestingly, some interfascicular cells were sclerified in the upper parts but not in the basal parts of the ifl1 stems. These sclerified cells were differentiated at a position different from that of interfascicular fibers in the wild type. Lack of interfascicular fibers correlated with a dramatic change of stem strength. Stems of the mutant could not stand erect and were easily broken by bending. Quantitative measurement showed that it took approximately six times less force to break basal stems of the mutant than of the wild type. In addition, noticeable morphological changes were associated with the mutant, including long stems, dark green leaves with delayed senescence, and reduced numbers of cauline leaves and branches. Genetic analysis showed that the ifl1 mutation was monogenic and recessive. The ifl1 locus was mapped to a region between the 17C2 and 7H9L markers on chromosome 5. Isolation ...Continue Reading

Citations

Jan 1, 2003·The Arabidopsis Book·Simon Turner, Leslie E Sieburth
Jan 1, 2002·The Arabidopsis Book·Hirokazu Tsukaya
Oct 28, 2010·Protoplasma·Juan Pablo Matte RisopatronBrian Joseph Jones
Sep 6, 2000·Trends in Plant Science·T BerlethC S Hardtke
Aug 12, 2009·Proceedings of the National Academy of Sciences of the United States of America·Marta IbañesAna I Caño-Delgado
Jun 23, 2004·Plant Physiology·Kaisa M NieminenYkä Helariutta
Dec 7, 2013·Plant Physiology·Ilga PorthCarl J Douglas
Jun 13, 2001·Plant Physiology·R Zhong, Z H Ye
Feb 5, 2003·The Plant Cell·Jonathan BookerOttoline Leyser
Feb 19, 2010·The Plant Cell·Talaat BashandyJean-Philippe Reichheld
Mar 15, 2000·The Plant Cell·O J RatcliffeJ Z Zhang
Sep 12, 2002·Annual Review of Plant Biology·Zheng-Hua Ye
Nov 15, 2012·BMC Plant Biology·J Peter EtchellsHugh G Dickinson
Oct 28, 1998·Proceedings of the National Academy of Sciences of the United States of America·F SterkyJ Lundeberg

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