An infra-red imaging system for the analysis of tropisms in Arabidopsis thaliana seedlings

Conference · Tue May 01 00:00:00 EDT 1990 · Plant Physiology, Supplement; (USA)

OSTI ID:5850070

Orbovic, V; Poff, K L ^[1]

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1. Michigan State Univ., East Lansing (USA)

Since blue and green light will induce phototropism and red light is absorbed by phytochrome, no wavelength of visible radiation should be considered safe for any study of tropisms in etiolated seedlings. For this reason, we have developed an infra-red imaging system with a video camera with which we can monitor seedlings using radiation at wavelengths longer than 800 nm. The image of the seedlings can be observed in real time, recorded on a VCR and subsequently analyzed using the Java image analysis system. The time courses for curvature of seedlings differ in shape, amplitude, and lag time. This variability accounts for much of the noise in the measurement of curvature for a population of seedlings.

• OSTI ID: 5850070
• Report Number(s): CONF-9007196-; CODEN: PPYSA
• Journal Information: Plant Physiology, Supplement; (USA), Vol. 93:1; Conference: Annual meeting of the American Society of Plant Physiologists, Indianapolis, IN (USA), 29 Jul - 2 Aug 1990; ISSN 0079-2241
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
SEEDLINGS
MONITORING
ARABIDOPSIS
INFRARED SPECTRA
MEASURING INSTRUMENTS
MAGNOLIOPHYTA
MAGNOLIOPSIDA
PLANTS
SPECTRA
551000* - Physiological Systems