The growth movement in the peduncle of Eichhornia crassipes II.

The growth movement in the peduncle of Eichhornia crassipes II. Research Abstract Details 

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The growth movement in the peduncle of Eichhornia crassipes II. Abstract Text:

Miho Tsushima,Reina Miyakawa,Teruko Nakamura,

The peduncle of water hyacinth (Eichhornia crassipes) showed the downward bending within 24 hours after full flowering. Previously it was suggested that the downward bending of peduncle might be induced by the differential growth of the epidermal cells of the portion because of the differential distribution of auxin in the upper side of the bending part of the peduncle. In order to investigate the effect of auxin and gravity on the peduncle bending in Water hyacinth, we examined the growth reaction of peduncle and the effects of plant hormones on the bending of peduncle under simulated microgravity, and the sedimentable amyloplast on earth and three dimensional (3D)-clinostat. As a result it was confirmed that the downward bending of peduncle in water hyacinth is the positive gravitropism, and that its phenomenon is caused by the differential distribution of auxin in the upper side of bending part of peduncle. It was found that the amyloplast sediments toward gravity direction in the bending part of the peduncle. From the present results, any direct relation between the sedimentable amyloplast and auxin transport were not cleared in the peduncle of water hyacinth. Further study should be carried out.

The growth movement in the peduncle of Eichhornia crassipes II. Publishing Authors By Initials

M Tsushima,R Miyakawa,T Nakamura,

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The growth movement in the peduncle of Eichhornia crassipes II. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Biological sciences in space = Uch? seibutsu kagak

VOLUME: 17

Page Numbers: 247-8

Journal Abbreviation: Biol. Sci. Space

ISSN: 0914-9201

DAY: 16

MONTH: Oct

YEAR: 2003

The growth movement in the peduncle of Eichhornia crassipes II. Information

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LANGUAGE: eng

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AFFILIATION: Faculty of Science, Japan Women's University.

Country: Japan

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MEDLINETA: Biol Sci Space

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