OrangerV1, Main, Exploration, bibRecord, 004297

Ethylene-binding characteristics in Phaseolus, Citrus , and Ligustrum plants

Identifieur interne : 004297 ( Main/Exploration ); précédent : 004296; suivant : 004298

Ethylene-binding characteristics in Phaseolus, Citrus , and Ligustrum plants

Auteurs : Raphael Goren [Israël] ; C. Sisler [États-Unis]

Source :

Plant Growth Regulation [ 0167-6903 ] ; 1986-03-01.

RBID : ISTEX:F9CCDE6461023D74D776A04491E9CA7CF1801E63

Descripteurs français

Pascal (Inist)
- Agrume, Citrus sinensis, Ethylène, Ligustrum, Ligustrum japonicum, Phaseolus vulgaris, Plante fruitière, Plante légumière, Plante ornementale, Site fixation, Substance croissance végétal.
Wicri :
- topic : Agrume.

English descriptors

KwdEn :
- Binding site, Citrus fruit, Citrus sinensis, Ethylene, Fruit crop, Ligustrum, Ornamental crop, Phaseolus vulgaris, Plant growth substance, Vegetable crop.

Abstract

Abstract: A number of plants were tested for their ability to bind ethylene and the number of binding sites present in each was calculated. Primary leaves of laboratory-grown beans (Phaseolus vulgaris) bound 140 dpm/g fwt (1794 dpm/g dry wt) when exposed to 1.0 μCi/1 of [14C]ethylene (110 ci/mol). Phytotron-grown leaves were less succulent but only bound 90 dpm/g fwt (1046 dpm/g dry wt). Bean roots bound 30 dpm/g fwt. Citrus and Ligustrum bound 207 and 240 dpm/g fwt, respectively. The time required to achieve equilibrium of leaves with the gas phase was 15 min for bean, 30 min for Citrus, and 30–60 min for Ligustrum. The time for 1/2 of the bound ethylene to diffuse out of the leaves was 20 min for bean, 10 min for Citrus, and 30 min for Ligustrum. The amount of ethylene needed to occupy 1/2 of the binding sites was obtained from Scatchard plots. This value (Kd) was 0.2 μl/1 for bean, 0.15 for Citrus, and 0.31 for Ligustrum. The quantity of binding sites in the tissues was 2.0×10-9 mol of binding sites/kg tissue for bean leaves, 5.7×10-9 for Citrus leaves, and 6.8×10-9 for Ligustrum. Pretreatment with indoleacetic acid (IAA), ehtylene, and cycloheximide (1 mg/1) had little effect on the level of ethylene-binding sites in Citrus.

Url:

https://api.istex.fr/document/F9CCDE6461023D74D776A04491E9CA7CF1801E63/fulltext/pdf

DOI: 10.1007/BF00025348

Affiliations:

Le document en format XML

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<term>Ligustrum</term>
<term>Ornamental crop</term>
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<term>Plante fruitière</term>
<term>Plante légumière</term>
<term>Plante ornementale</term>
<term>Site fixation</term>
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<front><div type="abstract" xml:lang="en">Abstract: A number of plants were tested for their ability to bind ethylene and the number of binding sites present in each was calculated. Primary leaves of laboratory-grown beans (Phaseolus vulgaris) bound 140 dpm/g fwt (1794 dpm/g dry wt) when exposed to 1.0 μCi/1 of [14C]ethylene (110 ci/mol). Phytotron-grown leaves were less succulent but only bound 90 dpm/g fwt (1046 dpm/g dry wt). Bean roots bound 30 dpm/g fwt. Citrus and Ligustrum bound 207 and 240 dpm/g fwt, respectively. The time required to achieve equilibrium of leaves with the gas phase was 15 min for bean, 30 min for Citrus, and 30–60 min for Ligustrum. The time for 1/2 of the bound ethylene to diffuse out of the leaves was 20 min for bean, 10 min for Citrus, and 30 min for Ligustrum. The amount of ethylene needed to occupy 1/2 of the binding sites was obtained from Scatchard plots. This value (Kd) was 0.2 μl/1 for bean, 0.15 for Citrus, and 0.31 for Ligustrum. The quantity of binding sites in the tissues was 2.0×10-9 mol of binding sites/kg tissue for bean leaves, 5.7×10-9 for Citrus leaves, and 6.8×10-9 for Ligustrum. Pretreatment with indoleacetic acid (IAA), ehtylene, and cycloheximide (1 mg/1) had little effect on the level of ethylene-binding sites in Citrus.</div>
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Ethylene-binding characteristics in Phaseolus, Citrus , and Ligustrum plants

Ethylene-binding characteristics in Phaseolus, Citrus , and Ligustrum plants

Source :

Descripteurs français

English descriptors

Abstract

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Le document en format XML

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