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Potential Consequences of Virus Infection for Shade‐Sun Acclimation in Leaves
Author(s) -
Osmond C. B.,
Berry J. A.,
Balachandran S.,
BüchenOsmond C.,
Daley P. F.,
Hodgson R. A. J.
Publication year - 1990
Publication title -
botanica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0932-8629
DOI - 10.1111/j.1438-8677.1990.tb00152.x
Subject(s) - biology , photoinhibition , ecotype , acclimatization , virus , photosynthesis , rubisco , botany , photosystem ii , ecology , virology
Attention is drawn to literature evidence that leaf virus infection may interfere with synthesis of ribulose‐1,5‐bisphosphate carboxylase oxygenase, and with the activity of photosystem II, two main requirements for shade‐sun acclimation. Preliminary experiments which show that virus infections resulting in these interactions can lead to photosynthetic physiology diagnostic of nitrogen limited plants and/or shade ecotypes are presented. Other observations on the diversity of virus infections in sun populations of wild species commonly found in the shade are presented. Together, this evidence leads to the hypothesis that virus infection may well confine individuals of some species to shaded habitats because infection prevents acclimation to bright light, and predisposes them to photoinhibition.