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פותח על ידי קלירמאש פתרונות בע"מ -
Hormone concentrations in tobacco roots change during arbuscular mycorrhizal colonization with Glomus intraradices
Year:
2002
Source of publication :
New Phytologist
Authors :
אלעד, יגאל
;
.
אשד, יובל
;
.
בלאוסוב, אדוארד
;
.
בן-טל, יוסי
;
.
גדקר, ויג'אי
;
.
גינזברג, עידית
;
.
וינינגר, סמדר
;
.
קפולניק, יורם
;
.
שאול, אורנה
;
.
Volume :
154
Co-Authors:
Shaul-Keinan, O., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Gadkar, V., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Ginzberg, I., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Grünzweig, J.M., Department of Environmental Sciences and Energy Research, Weizmann Institute of Science, Rehovot 76 100, Israel
Chet, I., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76 100, Israel
Elad, Y., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Wininger, S., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Belausov, E., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Eshed, Y., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Ben-Tal, Y., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Kapulnik, Y., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Facilitators :
From page:
501
To page:
507
(
Total pages:
7
)
Abstract:
Phytohormones are known to play a pivotal role in various developmental processes in plants and in arbuscular-mycorrhizal (AM) fungal-host symbiosis. This study focuses on characterizing the changes in the concentrations of auxins, cytokinins and gibberellins in tobacco (Nicotiana tabacum) during the early stages of colonization by Glomus intraradices, using advanced analytical detection techniques. High-pressure liquid chromatography analysis followed by radioimmunoassay detection revealed that AM colonization induced the accumulation of specific zeatin riboside-like and isopentenyl adenosine-like compounds in both roots and shoots. Use of the gas chromatography-mass spectrometry technique on the same developmental stage revealed that gibberellins (GA) of the earl-13-hydroxylation biosynthetic pathway (GA1, GA8, GA19 and GA20) were significantly more abundant in roots, but not shoots, of AM inoculated plants than in those of nonmycorrhizal plants. Indoleacetic acid concentrations (total and free) remained unaltered by AM colonization. This study demonstrates that hormonal changes do occur during AM symbiosis with tobacco, before the fungal benefits manifest.
Note:
Related Files :
Arbuscular mycorrhizal fungi
auxins
cytokinins
fungi
gibberellins
Nicotiana
Nicotiana tabacum
Phytohormones
Symbiosis
עוד תגיות
תוכן קשור
More details
DOI :
10.1046/j.1469-8137.2002.00388.x
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
18945
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:25
You may also be interested in
Scientific Publication
Hormone concentrations in tobacco roots change during arbuscular mycorrhizal colonization with Glomus intraradices
154
Shaul-Keinan, O., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Gadkar, V., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Ginzberg, I., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Grünzweig, J.M., Department of Environmental Sciences and Energy Research, Weizmann Institute of Science, Rehovot 76 100, Israel
Chet, I., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76 100, Israel
Elad, Y., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Wininger, S., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Belausov, E., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Eshed, Y., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Ben-Tal, Y., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Kapulnik, Y., Agricultural Research Organization (ARO), Volcani Center, Bet Dagan 50 250, Israel
Hormone concentrations in tobacco roots change during arbuscular mycorrhizal colonization with Glomus intraradices
Phytohormones are known to play a pivotal role in various developmental processes in plants and in arbuscular-mycorrhizal (AM) fungal-host symbiosis. This study focuses on characterizing the changes in the concentrations of auxins, cytokinins and gibberellins in tobacco (Nicotiana tabacum) during the early stages of colonization by Glomus intraradices, using advanced analytical detection techniques. High-pressure liquid chromatography analysis followed by radioimmunoassay detection revealed that AM colonization induced the accumulation of specific zeatin riboside-like and isopentenyl adenosine-like compounds in both roots and shoots. Use of the gas chromatography-mass spectrometry technique on the same developmental stage revealed that gibberellins (GA) of the earl-13-hydroxylation biosynthetic pathway (GA1, GA8, GA19 and GA20) were significantly more abundant in roots, but not shoots, of AM inoculated plants than in those of nonmycorrhizal plants. Indoleacetic acid concentrations (total and free) remained unaltered by AM colonization. This study demonstrates that hormonal changes do occur during AM symbiosis with tobacco, before the fungal benefits manifest.
Scientific Publication
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