Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 503530
Title Cyclic programmed cell death stimulates hormone signaling and root development in Arabidopsis
Author(s) Xuan, Wei; Band, Leah R.; Kumpf, Robert P.; Rybel, Bert De
Source Science 351 (2016)6271. - ISSN 0036-8075 - p. 384 - 387.
DOI http://dx.doi.org/10.1126/science.aad2776
Department(s) Biochemistry
EPS
Publication type Refereed Article in a scientific journal
Publication year 2016
Abstract

The plant root cap, surrounding the very tip of the growing root, perceives and transmits environmental signals to the inner root tissues. In Arabidopsis thaliana, auxin released by the root cap contributes to the regular spacing of lateral organs along the primary root axis. Here, we show that the periodicity of lateral organ induction is driven by recurrent programmed cell death at the most distal edge of the root cap.We suggest that synchronous bursts of cell death in lateral root cap cells release pulses of auxin to surrounding root tissues, establishing the pattern for lateral root formation. The dynamics of root cap turnover may therefore coordinate primary root growth with root branching in order to optimize the uptake of water and nutrients from the soil.

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