Fluctuation in levels of endogenous hormones after decapitation and 6-benzyl amino purine treatment in azalea, and their relationship to apical dominance

J. G. Chen; H. Y. Zhao; X. Zhou; L. S. Mao; X. X. Chen

doi:10.1016/S0304-4238(97)00069-1

Fluctuation in levels of endogenous hormones after decapitation and 6-benzyl amino purine treatment in azalea, and their relationship to apical dominance

J. G. Chen, H. Y. Zhao, X. Zhou, L. S. Mao, X. X. Chen

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Endogenous levels of indole-3-acetic acid (IAA), cytokinins, gibberellins (GAs) and abscisic acid (ABA) in 'Siji' azalea (Rhododendron obtusum), which had been sprayed once with 1000 mg/16-benzyl amino purine (6-BA) or decapitated, were determined by enzyme-linked immunosorbent assays. It was found that decapitation could significantly decrease the level of IAA in the shoot segment (0.5 cm in length just below the terminal bud, where axillary buds will emerge). A single application of 6-BA elicited a decrease of IAA level in the shoot segment, whereas an increase of IAA level in the terminal bud, and elicited an increase of isopentenyladenine and isopentenyladenosine, zeatin and zeatin riboside, in both the shoot segment and the terminal bud. It was also found that both the 6-BA treatment and decapitation could elicit an increase of GA ₁₊₃ level and a decrease of ABA level in the shoot segment (and the terminal bud).

Original language	English
Pages (from-to)	49-58
Number of pages	10
Journal	Scientia Horticulturae
Volume	71
Issue number	1-2
DOIs	https://doi.org/10.1016/S0304-4238(97)00069-1
State	Published - Nov 1997
Externally published	Yes

Funding

This work was financially supportedb y a grant from Natural Science Foundation from Jiangsu Province, P.R. China. Thanks are due to Dr. Morris G. Cline, Department of Plant Biology, Ohio State University, USA, for critical reading of the text.

Funders	Funder number
Natural Science Foundation of Jiangsu Province

Keywords

6-Benzyl amino purine
Apical dominance
Azalea
Decapitation
Plant hormones

Access to Document

10.1016/S0304-4238(97)00069-1

Cite this

@article{8de4ff4dbf554cf7a4afc2e0f27559b0,

title = "Fluctuation in levels of endogenous hormones after decapitation and 6-benzyl amino purine treatment in azalea, and their relationship to apical dominance",

abstract = "Endogenous levels of indole-3-acetic acid (IAA), cytokinins, gibberellins (GAs) and abscisic acid (ABA) in 'Siji' azalea (Rhododendron obtusum), which had been sprayed once with 1000 mg/16-benzyl amino purine (6-BA) or decapitated, were determined by enzyme-linked immunosorbent assays. It was found that decapitation could significantly decrease the level of IAA in the shoot segment (0.5 cm in length just below the terminal bud, where axillary buds will emerge). A single application of 6-BA elicited a decrease of IAA level in the shoot segment, whereas an increase of IAA level in the terminal bud, and elicited an increase of isopentenyladenine and isopentenyladenosine, zeatin and zeatin riboside, in both the shoot segment and the terminal bud. It was also found that both the 6-BA treatment and decapitation could elicit an increase of GA 1+3 level and a decrease of ABA level in the shoot segment (and the terminal bud).",

keywords = "6-Benzyl amino purine, Apical dominance, Azalea, Decapitation, Plant hormones",

author = "Chen, {J. G.} and Zhao, {H. Y.} and X. Zhou and Mao, {L. S.} and Chen, {X. X.}",

year = "1997",

month = nov,

doi = "10.1016/S0304-4238(97)00069-1",

language = "English",

volume = "71",

pages = "49--58",

journal = "Scientia Horticulturae",

issn = "0304-4238",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Fluctuation in levels of endogenous hormones after decapitation and 6-benzyl amino purine treatment in azalea, and their relationship to apical dominance

AU - Chen, J. G.

AU - Zhao, H. Y.

AU - Zhou, X.

AU - Mao, L. S.

AU - Chen, X. X.

PY - 1997/11

Y1 - 1997/11

N2 - Endogenous levels of indole-3-acetic acid (IAA), cytokinins, gibberellins (GAs) and abscisic acid (ABA) in 'Siji' azalea (Rhododendron obtusum), which had been sprayed once with 1000 mg/16-benzyl amino purine (6-BA) or decapitated, were determined by enzyme-linked immunosorbent assays. It was found that decapitation could significantly decrease the level of IAA in the shoot segment (0.5 cm in length just below the terminal bud, where axillary buds will emerge). A single application of 6-BA elicited a decrease of IAA level in the shoot segment, whereas an increase of IAA level in the terminal bud, and elicited an increase of isopentenyladenine and isopentenyladenosine, zeatin and zeatin riboside, in both the shoot segment and the terminal bud. It was also found that both the 6-BA treatment and decapitation could elicit an increase of GA 1+3 level and a decrease of ABA level in the shoot segment (and the terminal bud).

AB - Endogenous levels of indole-3-acetic acid (IAA), cytokinins, gibberellins (GAs) and abscisic acid (ABA) in 'Siji' azalea (Rhododendron obtusum), which had been sprayed once with 1000 mg/16-benzyl amino purine (6-BA) or decapitated, were determined by enzyme-linked immunosorbent assays. It was found that decapitation could significantly decrease the level of IAA in the shoot segment (0.5 cm in length just below the terminal bud, where axillary buds will emerge). A single application of 6-BA elicited a decrease of IAA level in the shoot segment, whereas an increase of IAA level in the terminal bud, and elicited an increase of isopentenyladenine and isopentenyladenosine, zeatin and zeatin riboside, in both the shoot segment and the terminal bud. It was also found that both the 6-BA treatment and decapitation could elicit an increase of GA 1+3 level and a decrease of ABA level in the shoot segment (and the terminal bud).

KW - 6-Benzyl amino purine

KW - Apical dominance

KW - Azalea

KW - Decapitation

KW - Plant hormones

UR - http://www.scopus.com/inward/record.url?scp=0031453785&partnerID=8YFLogxK

U2 - 10.1016/S0304-4238(97)00069-1

DO - 10.1016/S0304-4238(97)00069-1

M3 - Article

AN - SCOPUS:0031453785

SN - 0304-4238

VL - 71

SP - 49

EP - 58

JO - Scientia Horticulturae

JF - Scientia Horticulturae

IS - 1-2

ER -

Fluctuation in levels of endogenous hormones after decapitation and 6-benzyl amino purine treatment in azalea, and their relationship to apical dominance

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this