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Related Experiment Video

Updated: Jul 12, 2026

A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses

A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses

Published on: January 25, 2018

Lectin release by soybean seeds.

D W Fountain, D E Foard, W D Replogle

Science (New York, N.Y.)

|September 16, 1977

Summary

Soybean lectin is preferentially released during the initial 8 hours of seed hydration. This release occurs regardless of seed viability or the presence of azide, indicating a passive process.

Area of Science:

Plant biochemistry
Seed physiology

Background:

Soybean seeds contain lectins, proteins with carbohydrate-binding properties.
Understanding lectin release is crucial for seed processing and biochemical studies.

Purpose of the Study:

To investigate the release kinetics of soybean lectin during seed hydration.
To determine factors influencing lectin release, such as seed viability and chemical inhibitors.

Main Methods:

Hemagglutination assays were used to quantify lectin activity.
A filter-paper assay was developed to detect lectin release from individual soybean seeds.

Main Results:

Soybean lectin is a preferential release product within the first 8 hours of water uptake.

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Lectin release is independent of seed viability.

The release process is insensitive to the metabolic inhibitor azide.

Conclusions:

Soybean lectin is readily released upon hydration, primarily during the early stages.
The release mechanism appears to be a passive physical process rather than an active metabolic one.
This finding has implications for soybean seed storage and lectin extraction protocols.