Esr genes show different levels of expression in the same region of maize endosperm

Bonello, Jean-François; Opsahl-Ferstad, Hilde-Gunn; Peréz, Pascual; Dumas, Christian; Rogowsky, Peter

doi:10.1016/s0378-1119(00)00088-3

Cited by 53 publications

(41 citation statements)

References 19 publications

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“…In maize, ESR cells are characterized by their dense cytoplasmic contents (Schel et al, 1984;Kowles and Phillips, 1988) and by the expression of the Esr1, Esr2, Esr3 (OpsahlFerstad et al, 1997), ZmAE1 (Zea mays androgenic embryo1), and ZmAE3 (Magnard et al, 2000) genes between 5 and 20 DAP. Transgenic maize lines expressing the GUS reporter under the control of Esr promoters confirm the ESR-preferred pattern of expression for these genes (Bonello et al, 2000). Esr proteins localize to ESR cell walls (Bonello et al, 2000(Bonello et al, , 2002.…”

Section: The Embryo-surrounding Regionmentioning

confidence: 65%

Nuclear Endosperm Development in Cereals and Arabidopsis thaliana

Olsen

2004

THE PLANT CELL ONLINE

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Section: The Embryo-surrounding Regionmentioning

confidence: 65%

Nuclear Endosperm Development in Cereals and Arabidopsis thaliana

Olsen

2004

THE PLANT CELL ONLINE

410

379

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“…The ESR is a region of cells within the endosperm, and three highly related proteins have been localized to the ESR by in situ localization and promoter::GUS fusion experiments (Opsahl-Ferstad et al, 1997;Benello et al, 2000). ESR1-3 are small proteins with some structural homology to the developmental ligand CLV3 from Arabidopsis (Brand and Simon, 2000), suggesting the possibility that ESR proteins play a developmental role in maize.…”

Section: Discussionmentioning

confidence: 99%

“…This region, called the ESR, has been previously characterized as one of the four cell types of the developing endosperm (Olsen, 2001). Previously, a group of small proteins with a similar pattern of expression in maize have been characterized (ESR1-3; Opsahl-Ferstad et al, 1997;Benello et al, 2000), suggesting the ESR is a 1 and 2), high-salt wash (lanes 3 and 4), and insoluble fractions (lanes 5 and 6) and subjected to western-blot analysis with antibody raised against ZM-INVINH1. Fifty micrograms of total soluble protein and 20 g of high-salt and insoluble protein were separated by SDS-PAGE, and western-blot analysis was performed with ZM-INVINH1 antibody.…”

Section: Expression and Localization Of Zm-invinh1mentioning

confidence: 99%

An Invertase Inhibitor from Maize Localizes to the Embryo Surrounding Region during Early Kernel Development

et al. 2004

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Invertase activity is thought to play a regulatory role during early kernel development by converting sucrose originating from source leaves into hexoses to support cell division in the endosperm and embryo. Invertases are regulated at the posttranslational level by small protein inhibitors, INVINHs. We found that in maize (Zea mays), an invertase inhibitor homolog (ZM-INVINH1) is expressed early in kernel development, between 4 and 7 d after pollination. Invertase activity is reduced in vitro in the presence of recombinant ZM-INVINH1, and inhibition is attenuated by pre-incubation with sucrose. The presence of a putative signal peptide, fractionation experiments, and ZM-INVINH1::green fluorescent protein fusion experiments indicate that the protein is exported to the apoplast. Moreover, association of ZM-INVINH1 with the glycoprotein fraction by concanavalin A chromatogaphy suggests that ZM-INVINH1 interacts with an apoplastic invertase during early kernel development. ZM-INVINH1 was localized to the embryo surrounding region by in situ analysis, suggesting that this region forms a boundary, compartmentalizing apoplast invertase activity to allow different embryo and endosperm developmental rates.Kernel development in maize (Zea mays) proceeds through a series of tightly regulated, overlapping stages. After double fertilization, during the prestorage phase, two distinct cell types are established: the triploid endosperm and the diploid embryo. Despite clearly different cell fates, the embryo and endosperm both rely upon photosynthate from source leaves transported through the maternal pedicel region of the developing kernel, ending at the terminal phloem cells. The presence of Suc-hydrolyzing enzymes, which produce hexose sugars from Suc, have been identified as critical for the establishment of the prestorage phase of seed development, and Suc hydrolysis is an important component of realizable plant yield (Cheng and Chourney, 1999;Weschke et al., 2003). The "invertase control hypothesis," largely based on work from dicots (Wobus and Weber, 1999), is supported in maize by the presence of a cell wall invertase, INCW2, localized to the basal endosperm transfer layer (Talercio et al., 1999). Mutations in this gene result in miniature kernels (the mn1 mutation) and have a severely reduced endosperm (Cheng et al., 1996;Vilhar et al., 2002). Recently, the association of a IVR2, a soluble invertase expressed during early kernel development, with seed yield under conditions of limiting photosynthesis suggests that soluble invertases also play a significant role in providing hexose sugars to support cell division during the prestorage phase (Andersen et al., 2002), as has been previously suggested (Zinselmeier et al., 1999).Invertases exhibit complex regulation at the transcriptional and posttranscriptional levels in response to developmental, environmental, and carbohydrate signals (Sturm, 1999). In addition, small (Ͻ20-kD) inhibitor proteins (INVINH) have been associated with invertase preparations in a number of dico...

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“…This module also included many genes isolated previously by virtue of their highly specific ESR expression pattern, including ESR-1, ESR-2, ESR-3, ESR-6, ESR-6B, and AE-3 (Schel et al, 1984;Opsahl-Ferstad et al, 1997;Bonello et al, 2000;Balandín et al, 2005;Sosso et al, 2010). In our analysis, many of the same genes, including ESR-1, ESR-2, ESR-3, and ESR-6, were positioned within the intramodular hubs with high MM (e.g., 0.99) to M15 (Supplemental Figure 14C and Supplemental Data Set 4).…”

Section: Biological Processes Enriched In Coexpression Modules Of Thementioning

confidence: 99%

RNA Sequencing of Laser-Capture Microdissected Compartments of the Maize Kernel Identifies Regulatory Modules Associated with Endosperm Cell Differentiation

et al. 2015

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Endosperm is an absorptive structure that supports embryo development or seedling germination in angiosperms. The endosperm of cereals is a main source of food, feed, and industrial raw materials worldwide. However, the genetic networks that regulate endosperm cell differentiation remain largely unclear. As a first step toward characterizing these networks, we profiled the mRNAs in five major cell types of the differentiating endosperm and in the embryo and four maternal compartments of the maize (Zea mays) kernel. Comparisons of these mRNA populations revealed the diverged gene expression programs between filial and maternal compartments and an unexpected close correlation between embryo and the aleurone layer of endosperm. Gene coexpression network analysis identified coexpression modules associated with single or multiple kernel compartments including modules for the endosperm cell types, some of which showed enrichment of previously identified temporally activated and/or imprinted genes. Detailed analyses of a coexpression module highly correlated with the basal endosperm transfer layer (BETL) identified a regulatory module activated by MRP-1, a regulator of BETL differentiation and function. These results provide a high-resolution atlas of gene activity in the compartments of the maize kernel and help to uncover the regulatory modules associated with the differentiation of the major endosperm cell types.

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Esr genes show different levels of expression in the same region of maize endosperm

Cited by 53 publications

References 19 publications

Nuclear Endosperm Development in Cereals and Arabidopsis thaliana

Nuclear Endosperm Development in Cereals and Arabidopsis thaliana

An Invertase Inhibitor from Maize Localizes to the Embryo Surrounding Region during Early Kernel Development

RNA Sequencing of Laser-Capture Microdissected Compartments of the Maize Kernel Identifies Regulatory Modules Associated with Endosperm Cell Differentiation

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