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פותח על ידי קלירמאש פתרונות בע"מ -
PaKRP, a cyclin-dependent kinase inhibitor from avocado, may facilitate exit from the cell cycle during fruit growth
Year:
2013
Source of publication :
Plant Science
Authors :
ביטון, איריס
;
.
בן-ארי, גיורא
;
.
גורן, משה
;
.
דהן, ירדנה
;
.
יריחימוביץ', ורד
;
.
סבג, מיכל
;
.
צבירן, טלי
;
.
צדקה, אבי
;
.
Volume :
213
Co-Authors:
Sabag, M., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Ari, G.B., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Zviran, T., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Biton, I., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Goren, M., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Dahan, Y., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Sadka, A., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Irihimovitch, V., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Facilitators :
From page:
18
To page:
29
(
Total pages:
12
)
Abstract:
Previous studies using 'Hass' avocado cultivar showed that its small-fruit (SF) phenotype is limited by cell number. To explore the molecular components affecting avocado cell production, we isolated four cDNAs encoding: an ICK/KRP protein, known to play cell cycle-regulating roles through modulation of CDK function; two CDK proteins and a D-type cyclin, and monitored their expression patterns, comparing NF (normal fruit) versus SF profiles. The accumulation of PaKRP gradually deceased during growth in both fruit populations. Despite these similarities, SF exhibited higher levels of PaKRP accumulation at early stages of growth. Moreover, in NF, augmented PaKRP expression coincided with a decrease in CDK and PaCYCD1 levels, whereas in SF, enhanced PaKPR expression was coupled with an earlier decline of CDK and PaCYCD1 levels. For both NF and SF, enhanced mesocarp PaKRP transcript accumulation, was associated with elevated abscisic acid (ABA) and ABA catabolites content. Nevertheless, the collective ABA levels, including catabolites, were substantially higher in SF tissues, as compared with NF tissues. Finally, additional expression analysis revealed that in cultured cells, PaKRP could be induced by ABA. Together, our data links PaKRP with exit from the fruit cell cycle and suggest a role for ABA in controlling its expression. © 2013 Elsevier Ireland Ltd.
Note:
Related Files :
Avocado
Base Sequence
Cell Division
chemistry
Genetics
Growth, Development and Aging
metabolism
molecular genetics
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.plantsci.2013.08.007
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26873
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:26
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Scientific Publication
PaKRP, a cyclin-dependent kinase inhibitor from avocado, may facilitate exit from the cell cycle during fruit growth
213
Sabag, M., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Ari, G.B., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Zviran, T., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Biton, I., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Goren, M., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Dahan, Y., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Sadka, A., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Irihimovitch, V., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
PaKRP, a cyclin-dependent kinase inhibitor from avocado, may facilitate exit from the cell cycle during fruit growth
Previous studies using 'Hass' avocado cultivar showed that its small-fruit (SF) phenotype is limited by cell number. To explore the molecular components affecting avocado cell production, we isolated four cDNAs encoding: an ICK/KRP protein, known to play cell cycle-regulating roles through modulation of CDK function; two CDK proteins and a D-type cyclin, and monitored their expression patterns, comparing NF (normal fruit) versus SF profiles. The accumulation of PaKRP gradually deceased during growth in both fruit populations. Despite these similarities, SF exhibited higher levels of PaKRP accumulation at early stages of growth. Moreover, in NF, augmented PaKRP expression coincided with a decrease in CDK and PaCYCD1 levels, whereas in SF, enhanced PaKPR expression was coupled with an earlier decline of CDK and PaCYCD1 levels. For both NF and SF, enhanced mesocarp PaKRP transcript accumulation, was associated with elevated abscisic acid (ABA) and ABA catabolites content. Nevertheless, the collective ABA levels, including catabolites, were substantially higher in SF tissues, as compared with NF tissues. Finally, additional expression analysis revealed that in cultured cells, PaKRP could be induced by ABA. Together, our data links PaKRP with exit from the fruit cell cycle and suggest a role for ABA in controlling its expression. © 2013 Elsevier Ireland Ltd.
Scientific Publication
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