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Naslov:Programmed cell death occurs asymmetrically during abscission in tomato
Avtorji:ID Bar-Dror, Tal (Avtor)
ID Dermastia, Marina (Avtor)
ID Kladnik, Aleš (Avtor)
ID Tušek-Žnidarič, Magda (Avtor)
ID Pompe Novak, Maruša (Avtor)
ID Meir, Shimon (Avtor)
ID Burd, Shaul (Avtor)
ID Philosoph-Hadas, Sonia (Avtor)
ID Ori, Naomi (Avtor)
ID Sonego, Lilian (Avtor)
ID Dickman, Martin B. (Avtor)
ID Lers, Amnon (Avtor)
Datoteke:.pdf PDF - Predstavitvena datoteka, prenos (2,26 MB)
MD5: 423050ED60F8C13334288E9E2C7BD5E9
 
URL URL - Izvorni URL, za dostop obiščite https://doi.org/10.1105/tpc.111.092494
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo NIB - Nacionalni inštitut za biologijo
Povzetek:Abscission occurs specifically in the abscission zone (AZ) tissue as a natural stage of plant development. Previously, we observed delay of tomato (Solanum lycopersicum) leaf abscission when the LX ribonuclease (LX) was inhibited. The known association between LX expression and programmed cell death (PCD) suggested involvement of PCD in abscission. In this study, hallmarks of PCD were identified in the tomato leaf and flower AZs during the late stage of abscission. These included loss of cell viability, altered nuclear morphology, DNA fragmentation, elevated levels of reactive oxygen species and enzymatic activities, and expression of PCD-associated genes. Overexpression of antiapoptotic proteins resulted in retarded abscission, indicating PCD requirement. PCD, LX, and nuclease gene expression were visualized primarily in the AZ distal tissue, demonstrating an asymmetry between the two AZ sides. Asymmetric expression was observed for genes associated with cell wall hydrolysis, leading to AZ, or associated with ethylene biosynthesis, which induces abscission. These results suggest that different abscission-related processes occur asymmetrically between the AZ proximal and distal sides. Taken together, our findings identify PCD as a key mechanism that occurs asymmetrically during normal progression of abscission and suggest an important role for LX in this PCD process.
Ključne besede:plant cell, cell death, abscission
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.11.2011
Leto izida:2011
Št. strani:str. 4146-4163
Številčenje:Vol. 23, no. 11
PID:20.500.12556/DiRROS-20050 Novo okno
UDK:577.2
ISSN pri članku:1040-4651
DOI:10.1105/tpc.111.092494 Novo okno
COBISS.SI-ID:2469199 Novo okno
Datum objave v DiRROS:05.08.2024
Število ogledov:493
Število prenosov:285
Metapodatki:XML DC-XML DC-RDF
:
BAR-DROR, Tal, DERMASTIA, Marina, KLADNIK, Aleš, TUŠEK-ŽNIDARIČ, Magda, POMPE NOVAK, Maruša, MEIR, Shimon, BURD, Shaul, PHILOSOPH-HADAS, Sonia, ORI, Naomi, SONEGO, Lilian, DICKMAN, Martin B. in LERS, Amnon, 2011, Programmed cell death occurs asymmetrically during abscission in tomato. The Plant cell [na spletu]. 2011. Vol. 23, no. 11, p. 4146–4163. [Dostopano 6 april 2025]. DOI 10.1105/tpc.111.092494. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=20050
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Gradivo je del revije

Naslov:The Plant cell
Skrajšan naslov:Plant cell
Založnik:American Society of Plant Physiologists
ISSN:1040-4651
COBISS.SI-ID:28940033 Novo okno

Gradivo je financirano iz projekta

Financer:ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:J4-9738-2007
Naslov:Biotehnološki nadzor odpadanja plodov paradižnika za dosego večjega pridelka
Financer:Drugi - Drug financer ali več financerjev
Naslov:Research Grant 1019/06 from the Israel Science Foundation of the Israel Academy of Sciences
Financer:Drugi - Drug financer ali več financerjev
Številka projekta:IS-3645-04
Naslov:U.S.–Israel Binational Agricultural Research and Development Fund
Akronim:BARD
Financer:Drugi - Drug financer ali več financerjev
Številka projekta:IS-4073-07C
Naslov:U.S.–Israel Binational Agricultural Research and Development Fund
Akronim:BARD

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

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