Studies on the mechanism of damping-off resistance in the plant seedlings. 4. Modification of the susceptibility induced by ether narcosis or abnormal conditions of environment.

Minoru TAKAHASHI; Chikao OISHI

doi:10.3186/jjphytopath.23.131

Studies on the mechanism of damping-off resistance in the plant seedlings.

4. Modification of the susceptibility induced by ether narcosis or abnormal conditions of environment.

Minoru TAKAHASHI, Chikao OISHI

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JOURNAL FREE ACCESS

1958 Volume 23 Issue 3 Pages 131-134

DOI https://doi.org/10.3186/jjphytopath.23.131

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Published: October 30, 1958 Received: - Available on J-STAGE: February 19, 2009 Accepted: January 20, 1958 Advance online publication: - Revised: -
Correction information
Date of correction: February 19, 2009 Reason for correction: - Correction: TITLE Details: Wrong : Studies on the mechanism of damping-off resistance in the plant seedlings
Right : Studies on the mechanism of damping-off resistance in the plant seedlings.

Date of correction: February 19, 2009 Reason for correction: - Correction: SUBTITLE Details: Wrong : 4. Modification of the susceptibility induced by ether narcosis or abnormal conditions of environment
Right : 4. Modification of the susceptibility induced by ether narcosis or abnormal conditions of environment.

Date of correction: February 19, 2009 Reason for correction: - Correction: ABSTRACT Details: Wrong : The present paper deals with the influence of the treatment with narcotics, high temperature or of abnormal environmental conditions on the susceptibility of Cucurbita Pepo to Pythium ultimum. The change in the tissue respiration under the ether narcosis is also reported.
The young seedlings of highly resistant variety “Amakuri” which was treated with ether, ethanol or chloroform, became susceptible to the disease.
In the tissues of the seedling treated with ether, unlike those of nontreated, the Pythium hyhae were not checked their growth. The susceptibility of the seedling also increased by the treatment with high temperature.
The respiration of the tissue of the host plant decreased when the seedling was treated with ether. This may suggest that the metabolic activity in the host cells is reduced by narcosis.
From these results, it is recognized in the pumpkin seedlings that there exists a functional resistance of protoplasma of the host cells which can be easily abated by treating with narcotics and high temperature.
Right : The present paper deals with the influence of the treatment with narcotics, high temperature or of abnormal environmental conditions on the susceptibility of Cucurbita Pepo to Pythium ultimum. The change in the tissue respiration under the ether narcosis is also reported.
The young seedlings of highly resistant variety “Amakuri” which was treated with ether, ethanol or chloroform, became susceptible to the disease.
In the tissues of the seedling treated with ether, unlike those of nontreated, the Pythium hyhae were not checked their growth. The susceptibility of the seedling also increased by the treatment with high temperature.
The respiration of the tissue of the host plant decreased when the seedling was treated with ether. This may suggest that the metabolic activity in the host cells is reduced by narcosis.
From these results, it is recognized in the pumpkin seedlings that there exists a functional resistance of protoplasma of the host cells which can be easily abated by treating with narcotics and high temperature.

Date of correction: February 19, 2009 Reason for correction: - Correction: AUTHOR Details: Wrong : Minoru TAKAHASHI, Chikao OISHI¹⁾
Right : Minoru TAKAHASHI¹⁾, Chikao OISHI¹⁾

Date of correction: February 19, 2009 Reason for correction: - Correction: CITATION Details: Wrong : 2) Gäumann, E.: Pflanzliche Infektionslehre, II Aufl. p. 554 (1951).
3) Gothoskar, S. S., R. P. Scheffer, M. A. Stahmann and J. C. Walker: Phytopath., 45: 303. (1955).
8) Salmon, E. S.: Ann. Bot., 19: 125. (1905).
9) Scheffer R. P. and J. C. Walker: Phytopath., 44: 94. (1954).

Right : 2) Gäumann, E.: Pflanzliche Infektionslehre, II Aufl. p. 554 (1951).
3) Gothoskar, S.S., R.P. Scheffer, M.A. Stahmann and J.C. Walker: Phytopath., 45: 303. (1955).
8) Salmon, E.S.: Ann. Bot., 19: 125. (1905).
9) Scheffer R.P. and J.C. Walker: Phytopath., 44: 94. (1954).

Date of correction: February 19, 2009 Reason for correction: - Correction: PDF FILE Details: -

Abstract

The present paper deals with the influence of the treatment with narcotics, high temperature or of abnormal environmental conditions on the susceptibility of Cucurbita Pepo to Pythium ultimum. The change in the tissue respiration under the ether narcosis is also reported.
The young seedlings of highly resistant variety “Amakuri” which was treated with ether, ethanol or chloroform, became susceptible to the disease.
In the tissues of the seedling treated with ether, unlike those of nontreated, the Pythium hyhae were not checked their growth. The susceptibility of the seedling also increased by the treatment with high temperature.
The respiration of the tissue of the host plant decreased when the seedling was treated with ether. This may suggest that the metabolic activity in the host cells is reduced by narcosis.
From these results, it is recognized in the pumpkin seedlings that there exists a functional resistance of protoplasma of the host cells which can be easily abated by treating with narcotics and high temperature.

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