Conserved and novel mechanisms underlie oil palm (Elaeis guineensis Jacq.) fruit abscission: A model for studying fruit abscission in the palm family (Arecaceae). [W733]
Recent research on the molecular and cellular mechanisms of fruit abscission of the tropical palm species Elaeis guineensis (African oil palm) and the function and original features of the fruit primary abscission zone (AZ1) will be presented. The AZ1 consists of approximately 10 cell layers in the boundary region between the pedicel (P) and mesocarp (M). During early fruit development, AZ1 cells are distinguishable from P and M cells by their smaller size and periclinal cell division orientation. AZ1 cell wall thickness increases earlier during development suggesting cell wall assembly occurs more rapidly in the AZ1 than adjacent P and M cells. AZ1 cells contain numerous intra-AZ1 layer plasmodesmata (PD), but very few inter-AZ1 layer PD, while nuclei are located adjacent to PD and are remarkably aligned within AZ1 layer cells, and remain aligned and intact after abscission. These cellular features allow a high capacity for intra-AZ1 layer signaling that may be important for AZ1 development and function for fruit abscission. A decrease in methylesterified homogalacturonan (the main pectin component of the middle lamella) and the expression of two AZ1 specific polygalacturonases are observed in AZ1 cell layers during abscission. A comprehensive transcriptome analysis of the AZ1, P and M tissues reveal specific AZ1 expression combined with overlapping expression patterns between the AZ1 and adjacent P and M tissues may be important for AZ1 functional specificity. These results provide a platform to study fruit abscission within the palm family to understand how this fundamental plant process has diversified during evolution.
Main Authors: | , , , , , , , , , , |
---|---|
Format: | conference_item biblioteca |
Language: | eng |
Published: |
PAG
|
Subjects: | F30 - Génétique et amélioration des plantes, F60 - Physiologie et biochimie végétale, U10 - Informatique, mathématiques et statistiques, |
Online Access: | http://agritrop.cirad.fr/586600/ http://agritrop.cirad.fr/586600/1/PAG%202017_Tranbarger%20abstract.pdf |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-cirad-fr-586600 |
---|---|
record_format |
koha |
spelling |
dig-cirad-fr-5866002022-03-18T15:44:48Z http://agritrop.cirad.fr/586600/ http://agritrop.cirad.fr/586600/ Conserved and novel mechanisms underlie oil palm (Elaeis guineensis Jacq.) fruit abscission: A model for studying fruit abscission in the palm family (Arecaceae). [W733]. Tranbarger Timothy John, Fooyontphanich Kim, Roongsattham Peerapat, Morcillo Fabienne, Serret Julien, Dussert Stéphane, Collin Myriam, Amblard Philippe, Tangphatsornruang Sithichoke, Jantasuriyarat Chatchawan, Verdeil Jean-Luc. 2018. In : Proceedings Plant and Animal Genome XXVI Conference. PAG. San Diego : PAG, Résumé, 1 p. Plant and Animal Genomes Conference. 26, San Diego, États-Unis, 13 Janvier 2018/17 Janvier 2018.https://pag.confex.com/pag/xxvi/meetingapp.cgi/Paper/31653 <https://pag.confex.com/pag/xxvi/meetingapp.cgi/Paper/31653> Researchers Conserved and novel mechanisms underlie oil palm (Elaeis guineensis Jacq.) fruit abscission: A model for studying fruit abscission in the palm family (Arecaceae). [W733] Tranbarger, Timothy John Fooyontphanich, Kim Roongsattham, Peerapat Morcillo, Fabienne Serret, Julien Dussert, Stéphane Collin, Myriam Amblard, Philippe Tangphatsornruang, Sithichoke Jantasuriyarat, Chatchawan Verdeil, Jean-Luc eng 2018 PAG Proceedings Plant and Animal Genome XXVI Conference F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale U10 - Informatique, mathématiques et statistiques Recent research on the molecular and cellular mechanisms of fruit abscission of the tropical palm species Elaeis guineensis (African oil palm) and the function and original features of the fruit primary abscission zone (AZ1) will be presented. The AZ1 consists of approximately 10 cell layers in the boundary region between the pedicel (P) and mesocarp (M). During early fruit development, AZ1 cells are distinguishable from P and M cells by their smaller size and periclinal cell division orientation. AZ1 cell wall thickness increases earlier during development suggesting cell wall assembly occurs more rapidly in the AZ1 than adjacent P and M cells. AZ1 cells contain numerous intra-AZ1 layer plasmodesmata (PD), but very few inter-AZ1 layer PD, while nuclei are located adjacent to PD and are remarkably aligned within AZ1 layer cells, and remain aligned and intact after abscission. These cellular features allow a high capacity for intra-AZ1 layer signaling that may be important for AZ1 development and function for fruit abscission. A decrease in methylesterified homogalacturonan (the main pectin component of the middle lamella) and the expression of two AZ1 specific polygalacturonases are observed in AZ1 cell layers during abscission. A comprehensive transcriptome analysis of the AZ1, P and M tissues reveal specific AZ1 expression combined with overlapping expression patterns between the AZ1 and adjacent P and M tissues may be important for AZ1 functional specificity. These results provide a platform to study fruit abscission within the palm family to understand how this fundamental plant process has diversified during evolution. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/586600/1/PAG%202017_Tranbarger%20abstract.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://pag.confex.com/pag/xxvi/meetingapp.cgi/Paper/31653 info:eu-repo/semantics/altIdentifier/purl/https://pag.confex.com/pag/xxvi/meetingapp.cgi/Paper/31653 |
institution |
CIRAD FR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cirad-fr |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CIRAD Francia |
language |
eng |
topic |
F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale U10 - Informatique, mathématiques et statistiques F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale U10 - Informatique, mathématiques et statistiques |
spellingShingle |
F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale U10 - Informatique, mathématiques et statistiques F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale U10 - Informatique, mathématiques et statistiques Tranbarger, Timothy John Fooyontphanich, Kim Roongsattham, Peerapat Morcillo, Fabienne Serret, Julien Dussert, Stéphane Collin, Myriam Amblard, Philippe Tangphatsornruang, Sithichoke Jantasuriyarat, Chatchawan Verdeil, Jean-Luc Conserved and novel mechanisms underlie oil palm (Elaeis guineensis Jacq.) fruit abscission: A model for studying fruit abscission in the palm family (Arecaceae). [W733] |
description |
Recent research on the molecular and cellular mechanisms of fruit abscission of the tropical palm species Elaeis guineensis (African oil palm) and the function and original features of the fruit primary abscission zone (AZ1) will be presented. The AZ1 consists of approximately 10 cell layers in the boundary region between the pedicel (P) and mesocarp (M). During early fruit development, AZ1 cells are distinguishable from P and M cells by their smaller size and periclinal cell division orientation. AZ1 cell wall thickness increases earlier during development suggesting cell wall assembly occurs more rapidly in the AZ1 than adjacent P and M cells. AZ1 cells contain numerous intra-AZ1 layer plasmodesmata (PD), but very few inter-AZ1 layer PD, while nuclei are located adjacent to PD and are remarkably aligned within AZ1 layer cells, and remain aligned and intact after abscission. These cellular features allow a high capacity for intra-AZ1 layer signaling that may be important for AZ1 development and function for fruit abscission. A decrease in methylesterified homogalacturonan (the main pectin component of the middle lamella) and the expression of two AZ1 specific polygalacturonases are observed in AZ1 cell layers during abscission. A comprehensive transcriptome analysis of the AZ1, P and M tissues reveal specific AZ1 expression combined with overlapping expression patterns between the AZ1 and adjacent P and M tissues may be important for AZ1 functional specificity. These results provide a platform to study fruit abscission within the palm family to understand how this fundamental plant process has diversified during evolution. |
format |
conference_item |
topic_facet |
F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale U10 - Informatique, mathématiques et statistiques |
author |
Tranbarger, Timothy John Fooyontphanich, Kim Roongsattham, Peerapat Morcillo, Fabienne Serret, Julien Dussert, Stéphane Collin, Myriam Amblard, Philippe Tangphatsornruang, Sithichoke Jantasuriyarat, Chatchawan Verdeil, Jean-Luc |
author_facet |
Tranbarger, Timothy John Fooyontphanich, Kim Roongsattham, Peerapat Morcillo, Fabienne Serret, Julien Dussert, Stéphane Collin, Myriam Amblard, Philippe Tangphatsornruang, Sithichoke Jantasuriyarat, Chatchawan Verdeil, Jean-Luc |
author_sort |
Tranbarger, Timothy John |
title |
Conserved and novel mechanisms underlie oil palm (Elaeis guineensis Jacq.) fruit abscission: A model for studying fruit abscission in the palm family (Arecaceae). [W733] |
title_short |
Conserved and novel mechanisms underlie oil palm (Elaeis guineensis Jacq.) fruit abscission: A model for studying fruit abscission in the palm family (Arecaceae). [W733] |
title_full |
Conserved and novel mechanisms underlie oil palm (Elaeis guineensis Jacq.) fruit abscission: A model for studying fruit abscission in the palm family (Arecaceae). [W733] |
title_fullStr |
Conserved and novel mechanisms underlie oil palm (Elaeis guineensis Jacq.) fruit abscission: A model for studying fruit abscission in the palm family (Arecaceae). [W733] |
title_full_unstemmed |
Conserved and novel mechanisms underlie oil palm (Elaeis guineensis Jacq.) fruit abscission: A model for studying fruit abscission in the palm family (Arecaceae). [W733] |
title_sort |
conserved and novel mechanisms underlie oil palm (elaeis guineensis jacq.) fruit abscission: a model for studying fruit abscission in the palm family (arecaceae). [w733] |
publisher |
PAG |
url |
http://agritrop.cirad.fr/586600/ http://agritrop.cirad.fr/586600/1/PAG%202017_Tranbarger%20abstract.pdf |
work_keys_str_mv |
AT tranbargertimothyjohn conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT fooyontphanichkim conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT roongsatthampeerapat conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT morcillofabienne conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT serretjulien conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT dussertstephane conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT collinmyriam conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT amblardphilippe conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT tangphatsornruangsithichoke conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT jantasuriyaratchatchawan conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 AT verdeiljeanluc conservedandnovelmechanismsunderlieoilpalmelaeisguineensisjacqfruitabscissionamodelforstudyingfruitabscissioninthepalmfamilyarecaceaew733 |
_version_ |
1758025598758813696 |