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Gene expression patterns reveal tissue-specific signaling networks controlling programmed cell death and ABA- regulated maturation in developing barley seeds.
Plant J. 2006 Jul; 47(2):310-27.PJ

Abstract

Gene expression patterns covering over 10,000 seed-expressed sequences were analyzed by macroarray technology in maternal tissue (mainly pericarp) and filial endosperm and embryo during barley seed development from anthesis until late maturation. Defined sets of genes showing distinct expression patterns characterized both tissue type and major developmental phases. The analysis focused on regulatory networks involved in programmed cell death (PCD) and abscisic acid (ABA)-mediated maturation. These processes were similar in the different tissues, but typically involved the expression of alternative members of a common gene family. The analysis of co-expressed gene sets and the identification of cis regulatory elements in orthologous rice gene 'promoter' regions suggest that PCD in the pericarp is mediated by distinct classes of proteases and is under the hormonal control of both jasmonic acid (JA) and ethylene via ethylene-responsive element binding protein (EREBP) transcription factors (TFs). On the other hand, PCD in endosperm apparently involves only the ethylene pathway, but employs distinct gene family members from those active in the pericarp, and a different set of proteases and TFs. JA biosynthetic genes are hardly activated. Accordingly, JA levels are high in the pericarp but low in the endosperm during middle and late developmental stages. Similarly, genes acting in the deduced ABA biosynthetic pathway and signaling network differ between endosperm and embryo. ABA in the endosperm appears to exert an influence over storage product synthesis via SNF1 kinase. In the embryo, ABA seems to influence the acquisition of desiccation tolerance via ABA response element binding factors, but the data also suggest the existence of an ABA-independent but interactive pathway acting via the dehydration-responsive element binding (DREB) 2A TF.

Authors+Show Affiliations

Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, D-06466, Germany.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16771774

Citation

Sreenivasulu, Nese, et al. "Gene Expression Patterns Reveal Tissue-specific Signaling Networks Controlling Programmed Cell Death and ABA- Regulated Maturation in Developing Barley Seeds." The Plant Journal : for Cell and Molecular Biology, vol. 47, no. 2, 2006, pp. 310-27.
Sreenivasulu N, Radchuk V, Strickert M, et al. Gene expression patterns reveal tissue-specific signaling networks controlling programmed cell death and ABA- regulated maturation in developing barley seeds. Plant J. 2006;47(2):310-27.
Sreenivasulu, N., Radchuk, V., Strickert, M., Miersch, O., Weschke, W., & Wobus, U. (2006). Gene expression patterns reveal tissue-specific signaling networks controlling programmed cell death and ABA- regulated maturation in developing barley seeds. The Plant Journal : for Cell and Molecular Biology, 47(2), 310-27.
Sreenivasulu N, et al. Gene Expression Patterns Reveal Tissue-specific Signaling Networks Controlling Programmed Cell Death and ABA- Regulated Maturation in Developing Barley Seeds. Plant J. 2006;47(2):310-27. PubMed PMID: 16771774.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Gene expression patterns reveal tissue-specific signaling networks controlling programmed cell death and ABA- regulated maturation in developing barley seeds. AU - Sreenivasulu,Nese, AU - Radchuk,Volodymyr, AU - Strickert,Marc, AU - Miersch,Otto, AU - Weschke,Winfriede, AU - Wobus,Ulrich, Y1 - 2006/06/08/ PY - 2006/6/15/pubmed PY - 2006/9/26/medline PY - 2006/6/15/entrez SP - 310 EP - 27 JF - The Plant journal : for cell and molecular biology JO - Plant J VL - 47 IS - 2 N2 - Gene expression patterns covering over 10,000 seed-expressed sequences were analyzed by macroarray technology in maternal tissue (mainly pericarp) and filial endosperm and embryo during barley seed development from anthesis until late maturation. Defined sets of genes showing distinct expression patterns characterized both tissue type and major developmental phases. The analysis focused on regulatory networks involved in programmed cell death (PCD) and abscisic acid (ABA)-mediated maturation. These processes were similar in the different tissues, but typically involved the expression of alternative members of a common gene family. The analysis of co-expressed gene sets and the identification of cis regulatory elements in orthologous rice gene 'promoter' regions suggest that PCD in the pericarp is mediated by distinct classes of proteases and is under the hormonal control of both jasmonic acid (JA) and ethylene via ethylene-responsive element binding protein (EREBP) transcription factors (TFs). On the other hand, PCD in endosperm apparently involves only the ethylene pathway, but employs distinct gene family members from those active in the pericarp, and a different set of proteases and TFs. JA biosynthetic genes are hardly activated. Accordingly, JA levels are high in the pericarp but low in the endosperm during middle and late developmental stages. Similarly, genes acting in the deduced ABA biosynthetic pathway and signaling network differ between endosperm and embryo. ABA in the endosperm appears to exert an influence over storage product synthesis via SNF1 kinase. In the embryo, ABA seems to influence the acquisition of desiccation tolerance via ABA response element binding factors, but the data also suggest the existence of an ABA-independent but interactive pathway acting via the dehydration-responsive element binding (DREB) 2A TF. SN - 0960-7412 UR - https://www.unboundmedicine.com/medline/citation/16771774/Gene_expression_patterns_reveal_tissue_specific_signaling_networks_controlling_programmed_cell_death_and_ABA__regulated_maturation_in_developing_barley_seeds_ DB - PRIME DP - Unbound Medicine ER -