חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Strigolactones are positive regulators of light-harvesting genes in tomato
Year:
2010
Source of publication :
Journal of Experimental Botany
Authors :
בטצ'ריה, צ'ייטאלי
;
.
וינינגר, סמדר
;
.
למקוף, חורחה הוגו
;
.
לקאלה, סיוורמה
;
.
מייזליש-גתי, עינב
;
.
קולטאי, חננית
;
.
קפולניק, יורם
;
.
רזניק, נטליה
;
.
Volume :
61
Co-Authors:
Facilitators :
From page:
3129
To page:
3136
(
Total pages:
8
)
Abstract:
Strigolactones are newly identified plant hormones, shown to participate in the regulation of lateral shoot branching and root development. However, little is known about their effects on biological processes, genes, and proteins. Transcription profiling of roots treated with GR24, a synthetic strigolactone with proven biological activity, and/or indole acetic acid (IAA) was combined with physiological and transcriptional analysis of a tomato mutant (Sl-ORT1) deficient in strigolactone production. GR24 treatment led to markedly induced expression of genes putatively involved in light harvesting. This was apparent in both the presence and absence of exogenously applied IAA, but not with IAA treatment alone. Following validation of the microarray results, transcriptional induction by light of the GR24-induced genes was demonstrated in leaves exposed to high or low light intensities. Sl-ORT1 contained less chlorophyll and showed reduced expression of light harvesting-associated genes than the wild type (WT). Moreover, perfusion of GR24 into WT and Sl-ORT1 leaves led to induction of most of the examined light harvesting-associated genes. Results suggest that GR24 treatment interferes with the root's response to IAA treatment and that strigolactones are potentially positive regulators of light harvesting in plants.
Note:
Related Files :
carotenoids
gene expression regulation
Genetics
light
metabolism
phytohormone
Strigolactones
עוד תגיות
תוכן קשור
More details
DOI :
10.1093/jxb/erq138
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22816
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:54
You may also be interested in
Scientific Publication
Strigolactones are positive regulators of light-harvesting genes in tomato
61
Strigolactones are positive regulators of light-harvesting genes in tomato
Strigolactones are newly identified plant hormones, shown to participate in the regulation of lateral shoot branching and root development. However, little is known about their effects on biological processes, genes, and proteins. Transcription profiling of roots treated with GR24, a synthetic strigolactone with proven biological activity, and/or indole acetic acid (IAA) was combined with physiological and transcriptional analysis of a tomato mutant (Sl-ORT1) deficient in strigolactone production. GR24 treatment led to markedly induced expression of genes putatively involved in light harvesting. This was apparent in both the presence and absence of exogenously applied IAA, but not with IAA treatment alone. Following validation of the microarray results, transcriptional induction by light of the GR24-induced genes was demonstrated in leaves exposed to high or low light intensities. Sl-ORT1 contained less chlorophyll and showed reduced expression of light harvesting-associated genes than the wild type (WT). Moreover, perfusion of GR24 into WT and Sl-ORT1 leaves led to induction of most of the examined light harvesting-associated genes. Results suggest that GR24 treatment interferes with the root's response to IAA treatment and that strigolactones are potentially positive regulators of light harvesting in plants.
Scientific Publication
נגישות
menu      
You may also be interested in