ScholarLens Back to search
1955•Endocrinologia JaponicaOpen access

RELATION BETWEEN THE CONCENTRATION OF THIOUREA SOLUTION AND ITS MASCULINIZING EFFECT ON FROG LARVAE

Hisaaki Iwasawa

Open full text 1 citations

Abstract

1. The tadpoles of Rhacophorus schlegelii, 30 or 40mm in length, were treated with a 0.1, 0.05, or 0.025 per cent thiourea solution, and the relation between the concentration of thiourea and the masculinization of the tadpoles was studied.2. The thiourea-treated larvae were killed 3 weeks after the time of metamorphosis of control animals. The sex ratio in the 0.025 per cent series was 1: 1, while in the 0.1 per cent series the number of male individuals remarkably increased. It is, therefore, conceivable that the masculinization in the thiourea treated larvae was increased with the concentration of thiourea solution.

Open-access reader

About this research paper

What this paper is about

1. The tadpoles of Rhacophorus schlegelii, 30 or 40mm in length, were treated with a 0.1, 0.05, or 0.025 per cent thiourea solution, and the relation between the concentration of thiourea and the masculinization of the tadpoles was studied.2. The thiourea-treated larvae were killed 3 weeks after the time of metamorphosis of control animals. The sex ratio in the 0.025 per cent series was 1: 1, while in the 0.1 per cent series the number of male individuals remarkably increased. It is, therefore, conceivable that the masculinization in the thiourea treated larvae was increased with the concentration of thiourea solution.

Why it matters

OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

1. The tadpoles of Rhacophorus schlegelii, 30 or 40mm in length, were treated with a 0.1, 0.05, or 0.025 per cent thiourea solution, and the relation between the concentration of thiourea and the masculinization of the tadpoles was studied.2. The thiourea-treated larvae were killed 3 weeks after the time of metamorphosis of control animals. The sex ratio in the 0.025 per cent series was 1: 1, while in the 0.1 per cent series the number of male individuals remarkably increased. It is, therefore, conceivable that the masculinization in the thiourea treated larvae was increased with the concentration of thiourea solution.

Key concepts: Thiourea, Metamorphosis, Larva, Endocrinology, Internal medicine, Chemistry, Biology, Animal science

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
RELATION BETWEEN THE CONCENTRATION OF THIOUREA SOLUTION AND ITS MASCULINIZING EFFECT ON FROG LARVAE — Research Paper | ScholarLens