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Allelopathic potential of corn pollen.

J J Jiménez¹, K Schultz, A L Anaya

¹Centro de Investigaciones en Fisiología Celular, U.N.A.M., Mexico.

Journal of Chemical Ecology

|January 11, 2014

Summary

This summary is machine-generated.

Corn pollen contains compounds that inhibit the growth of certain plants, like Bidens pilosa and Cassia jalapensis. The hexane fraction of corn pollen showed the strongest inhibitory effect on radicle growth.

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Collection and Identification of Pollen from Honey Bee Colonies

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Area of Science:

Plant Science
Agroecology
Biochemistry

Background:

Pollen can contain bioactive compounds.
Allelopathy, the chemical inhibition of one plant by another, is a significant ecological factor.
The allelopathic potential of corn pollen on other plant species is not well understood.

Purpose of the Study:

To investigate the effects of corn pollen and its extracts on the radicle growth of Bidens pilosa, Cassia jalapensis, and Rumex crispus.
To identify the active allelopathic principles within corn pollen.
To assess the potential natural occurrence of corn pollen allelopathy.

Main Methods:

Corn pollen was extracted using various solvents and methods, including sonication and maceration with methylene chloride.
Aqueous leachates of pollen were tested.
Different fractions, particularly the hexane fraction, were analyzed for their inhibitory effects on plant radicle growth.
Allelopathic effects were tested across various substrates.

Main Results:

Corn pollen and its aqueous leachates significantly affected the radicle growth of Bidens pilosa, Cassia jalapensis, and Rumex crispus.
The hexane fraction of the methylene chloride extract exhibited the strongest inhibitory effect.
Corn pollen demonstrated allelopathic effects on Cassia jalapensis growth in multiple substrates.

Conclusions:

Corn pollen possesses allelopathic properties that can inhibit the growth of specific plant species.
The hexane fraction contains potent allelopathic compounds.
These findings suggest that pollen allelopathy may play a role in natural plant interactions.