Cited by 94Light effects on plantsPhotosynthetic Processes and MechanismsGreenhouse Technology and Climate Control

Chloroplast movements in the field

WILLIAMS, W. E., GORTON, H. L., WITIAK, S. M.·2003·Plant, Cell & Environment

Abstract

An ecophysiological understanding of chloroplast movements in leaves requires measurement of these movements under field conditions. A field‐portable instrument was constructed, based on a pulsed measuring beam and lock‐in detection that measures chloroplast movements in attached leaves by sensing the resultant changes in leaf transmittance. In the instrument and generally in nature, leaves are illuminated obliquely, in contrast with the perpendicular illumination used in most laboratory experiments on chloroplast movement. Microscopic analysis of cells illuminated obliquely with bright light verified that chloroplasts move out of the light path, and transmittance changes in response to oblique light were robust. Chloroplast movements in Alocasia brisbanensis under natural sunlight express kinetics and light requirements expected from laboratory observations: chloroplasts were in the periclinal position at dawn and dusk, anticlinal position in full sunlight midday, and in an intermediate position at night. Movement in response to bright light was rapid allowing responses to brief sunflecks. Movements in Helianthus tuberosum, Eustrephus latifolius and Cissus hypoglauca were qualitatively similar with differing kinetics and magnitude. In all four species, chloroplasts were in motion most of the time, rarely achieving the extreme anticlinal or periclinal positions.

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Crossref · 10.1046/j.0016-8025.2003.01117.x

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Authors
WILLIAMS, W. E., GORTON, H. L., & WITIAK, S. M.
Affiliations
  • St. Mary's College of Maryland (US)
  • Pennsylvania State University (US)
Corresponding author
WILLIAMS, W. E.
Venue
Plant, Cell & Environment
Publisher
Wiley
Published
2003-11-17
Volume
26
Issue
12
Pages
2005-2014
ISSN
  • 0140-7791 (ISSN-L)
  • 1365-3040
OpenAlex
W2128149919
Cited by
94
References
31
Citations by year
2026: 2 · 2025: 3 · 2024: 2 · 2023: 1 · 2022: 2 · 2021: 1 · 2020: 5 · 2019: 29 · 2018: 1 · 2017: 4 · 2016: 1 · 2015: 3 · 2014: 2 · 2013: 5 · 2012: 4
FWCI
3.55
Type
journal article
Language
en
Open access
closed
Locations
Plant Cell & Environment (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Light effects on plants
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Greenhouse Technology and Climate Control
Keywords
chloroplast movement, leaf transmittance, phase-sensitive detection, Cissus hypoglauca, sunflecks, ecophysiology

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