Ethyleneauxin interactions regulate lateral root initiation and emergence inArabidopsis thaliana
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چکیده
منابع مشابه
CEP5 and XIP1/CEPR1 regulate lateral root initiation in Arabidopsis
Roots explore the soil for water and nutrients through the continuous production of lateral roots. Lateral roots are formed at regular distances in a steadily elongating organ, but how future sites for lateral root formation become established is not yet understood. Here, we identified C-TERMINALLY ENCODED PEPTIDE 5 (CEP5) as a novel, auxin-repressed and phloem pole-expressed signal assisting i...
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Osmotically driven turgor pressure of plant cells can be higher than that of a car tire. It puts tremendous forces onto cell walls and drives cell growth and changes in cell shape. This has given rise to unique mechanisms to control organ formation compared to metazoans. The fascinating interplay between forces and local cellular reorganization is still poorly understood. Growth of lateral root...
متن کاملMechanical induction of lateral root initiation in Arabidopsis thaliana.
Lateral roots are initiated postembryonically in response to environmental cues, enabling plants to explore efficiently their underground environment. However, the mechanisms by which the environment determines the position of lateral root formation are unknown. In this study, we demonstrate that in Arabidopsis thaliana lateral root initiation can be induced mechanically by either gravitropic c...
متن کاملTalking through walls: mechanisms of lateral root emergence in Arabidopsis thaliana.
Lateral roots are formed postembryonically and determine the final shape of the root system, a determinant of the plants ability to uptake nutrients and water. The lateral root primordia are initiated deep into the main root and to protrude out the primary root they have to grow through three cell layers. Recent findings have revealed that these layers are not merely a passive physical obstacle...
متن کاملThe circadian clock rephases during lateral root organ initiation in Arabidopsis thaliana
The endogenous circadian clock enables organisms to adapt their growth and development to environmental changes. Here we describe how the circadian clock is employed to coordinate responses to the key signal auxin during lateral root (LR) emergence. In the model plant, Arabidopsis thaliana, LRs originate from a group of stem cells deep within the root, necessitating that new organs emerge throu...
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ژورنال
عنوان ژورنال: The Plant Journal
سال: 2008
ISSN: 0960-7412,1365-313X
DOI: 10.1111/j.1365-313x.2008.03528.x