NDLI: Photosynthetic light and carbon dioxide response of the invasive tree, Vochysia divergens Pohl, to experimental flooding and shading

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Photosynthetic light and carbon dioxide response of the invasive tree, Vochysia divergens Pohl, to experimental flooding and shading

Content Provider	Springer Nature Link
Author	Dalmolin, A. C. Dalmagro, H. J. Lobo, F. de A. Antunes, M. Z. Ortíz, C. E. R. Vourlitis, G. L.
Copyright Year	2013
Abstract	Vochysia divergens Pohl is considered to be a flood-adapted, light-demanding pioneer species that has been invading grasslands of the Brazilian Pantanal. In these areas, a successful invasion requires an ability to tolerate physiologically wide fluctuations in surface hydrology and shading induced by a dense cover of grasses and other vegetation. We evaluated how flooding and shading affected the photosynthetic performance of V. divergens saplings by measuring light-saturated gas exchange (net photosynthetic rate, P $_{N}$; stomatal conductance, g $_{s}$), and intercellular CO$_{2}$ (P $_{N}$/C $_{i}$) and photosynthetic photon flux density (P $_{N}$/PPFD) response curves over a 61-d field experiment. Shading and flooding reduced significantly light-saturated P $_{N}$ and g $_{s}$ and affected multiple aspects of the leaf gas exchange response of V. divergens to variations in PPFD and CO$_{2}$. Flooding influenced the physiology of this species more than shading. Given the success of V. divergens at invading and expanding in seasonally flooded areas of the Pantanal, the results were surprising and highlighted the physiological ability of this species to tolerate suboptimal conditions. However, the consistently higher light-saturated P $_{N}$ and g $_{s}$ under nonflooded conditions suggested that the invasive success of V. divergens might not be related to its physiological potential during flooding, but to situations, when flooding recedes during the dry season and soil water availability is adequate.
Starting Page	379
Ending Page	386
Page Count	8
File Format	PDF
ISSN	03003604
Journal	Photosynthetica
Volume Number	51
Issue Number	3
e-ISSN	15739058
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-05-07
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science

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Photosynthetic light and carbon dioxide response of the invasive tree, Vochysia divergens Pohl, to experimental flooding and shading

Effects of flooding and shading on growth and gas exchange of Vochysia divergens Pohl (Vochysiaceae) of invasive species in the Brazilian Pantanal

Effects of flooding and shading on growth and gas exchange of Vochysia divergens Pohl (Vochysiaceae) of invasive species in the Brazilian Pantanal

Photosynthetic parameters of two invasive tree species of the Brazilian Pantanal in response to seasonal flooding

Growth rhythm of Vochysia divergens Pohl (Vochysiaceae) in the Northern Pantanal

Is the dry season an important driver of phenology and growth for two Brazilian savanna tree species with contrasting leaf habits?

Photosynthetic Response of Barley Plants to Soil Flooding

Photosynthetic response of a wetland- and an upland-adapted tree species to seasonal variations in hydrology in the Brazilian Cerrado and Pantanal

Photosynthetic response of wheat and sunflower cultivars to long-term exposure of elevated carbon dioxide concentration

Photosynthetic light and carbon dioxide response of the invasive tree, Vochysia divergens Pohl, to experimental flooding and shading

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