Effects of light availability and soil flooding on growth and photosynthetic characteristics of Genipa americana L. seedlings

Lavinsky, A. O.; Sant’Ana, Cristiano De Souza; Mielke, Marcelo Schramm; Almeida, Alex-Alan Furtado de; Gomes, Fábio Pinto; França, Solange; Silva, Delmira da Costa

doi:10.1007/s11056-006-9036-1

Cited by 36 publications

(32 citation statements)

References 20 publications

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“…F v /F m was thought to indicate the effects of environmental stress on photosynthesis (Lavinsky et al, 2007;Jing et al, 2009). For example, a reduction in F v /F m is a good indicator of photosynthetic impairment resulting from waterlogging stress.…”

Section: Discussionmentioning

confidence: 99%

Chlorophyll Fluorescence and Yield Responses of Winter Wheat to Waterlogging at Different Growth Stages

Tang

et al. 2015

Plant Production Science

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Section: Discussionmentioning

confidence: 99%

Chlorophyll Fluorescence and Yield Responses of Winter Wheat to Waterlogging at Different Growth Stages

Tang

et al. 2015

Plant Production Science

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“…Leaf chlorosis and Chl degradation are symptoms of stress observed in tropical or temperate tree species subjected to soil flooding (Gravatt and Kirby 1998, Gardiner and Krauss 2001, Lavinsky et al 2007). As shown in Table 2, despite the small decreases in Chl a and Chl (a+b) observed in flooded plants, the greatest differences were found between light treatments and no significant interactions were observed between light-and flooding treatments.…”

Section: Discussionmentioning

confidence: 99%

“…Changes in these factors occur because this type of ecosystem is very unstable and prone to intermittent changes in volume and flow of water through rivers, resulting in soil flooding and changes in light availability. Considering that changes in pigment content are within the main responses of leaves exposed to high light and soil flooding (Lavinsky et al 2007, Mielke andSchaffer 2010b) the use of hand-held Chl meters could be very useful to provide information about the physiological performance of seedlings of tree species after planting in gallery forest restoration projects. To our knowledge, no studies have been published relating SPAD values and Chl contents and composition in leaves of plants exposed to soil flooding in different light environments.…”

Section: Introductionmentioning

confidence: 99%

Use of a SPAD meter to estimate chlorophyll content in Eugenia uniflora L. leaves as affected by contrasting light environments and soil flooding

Mielke

Schaffer

2010

Photosynt.

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In three separate experiments, the effectiveness of a SPAD-502 portable chlorophyll (Chl) meter was evaluated for estimating Chl content in leaves of Eugenia uniflora seedlings in different light environments and subjected to soil flooding. In the first experiment, plants were grown in partial or full sunlight. In the second experiment plants were grown in full sunlight for six months and then transferred to partial sunlight or kept in full sunlight. In the third experiment plants were grown in a shade house (40% of full sunlight) for six months and then transferred to partial shade (25-30% of full sunlight) or full sunlight. In each experiment, plants in each light environment were either flooded or not flooded. Non-linear regression models were used to relate SPAD values to leaf Chl content using a combination of the data obtained from all three experiments. There were no significant effects of flooding treatments or interactions between light and flooding treatments on any variable analyzed. Light environment significantly affected SPAD values, chlorophyll a (Chl a), chlorophyll b (Chl b), and total chlorophyll [Chl (a+b)] contents in Experiment I (p≤0.01) and Experiment III (p≤0.05). The relationships between SPAD values and Chl contents were very similar among the three experiments and did not appear to be influenced by light or flooding treatments. There were high positive exponential relationships between SPAD values and Chl (a+b), Chl a, and Chl b contents.

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“…In Mediterranean climates, shade may be beneficial in promoting plant WUE and alleviating drought effects (Nicola´s et al 2005;Alarco´n et al 2006;Valladares et al 2008). Shade-grown plants of Genipa americana L. (Lavinsky et al 2007) and Gouania virgata Reissk (Sanches and Va´lio 2008), tropical woody species, exhibit higher photosynthetic WUE than plants grown in full sunlight. Gap trees of shade-tolerant Acer saccharum Marsh.…”

Section: Variation In Photosynthetic Wue With Respect To Light Availamentioning

confidence: 99%

Is distribution of hydraulic constraints within tree crowns reflected in photosynthetic water‐use efficiency? An example of Betula pendula

Sellin

Eensalu

Niglas

2009

Ecological Research

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Spatial and daily variation in photosynthetic water-use efficiency was examined in leaves of Betula pendula Roth with respect to distribution of hydraulic conductance within the crown, morphological properties of stomata, and water availability. Intrinsic water-use efficiency (A n /g s ) was determined from gas-exchange measurements performed both in situ in a natural forest stand and on detached shoots under laboratory conditions. In intact foliage, sun leaves demonstrated significantly higher (P < 0.001) A n /g s than shade leaves, as photosynthesis in the lower canopy was chronically limited by low light availability. However, this difference reversed in the mid-day period under sufficient irradiance (I > 800 lmol m À2 s À1 ): A n /g s averaged 28.8 and 24.0 lmol mol À1 (P < 0.01) for shade and sun leaves, respectively. This last finding coincided with the data obtained in laboratory conditions: under equivalent leaf water supply and light, A n /g s in shade foliage was greater (P < 0.001) than in sun foliage across a wide range of irradiance. Thus, shade foliage of B. pendula is characterized by inherently higher A n /g s than sun foliage, associated with more conservative stomatal behavior, and lower soil-to-leaf (K T ) and leaf hydraulic conductances. Under unlimited light conditions, a within-crown trade-off between A n /g s and K T becomes apparent. Differences in stomatal conductance between the detached shoots from sunlit and shaded canopy layers were largely attributable to the variation in stomatal morphology; significant relationships were established with characteristics combining stomatal size and density (relative stomatal surface, stomatal pore area index). Stomatal morphology is very likely involved in long-term adjustment of photosynthetic WUE.

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Effects of light availability and soil flooding on growth and photosynthetic characteristics of Genipa americana L. seedlings

Cited by 36 publications

References 20 publications

Chlorophyll Fluorescence and Yield Responses of Winter Wheat to Waterlogging at Different Growth Stages

Chlorophyll Fluorescence and Yield Responses of Winter Wheat to Waterlogging at Different Growth Stages

Use of a SPAD meter to estimate chlorophyll content in Eugenia uniflora L. leaves as affected by contrasting light environments and soil flooding

Is distribution of hydraulic constraints within tree crowns reflected in photosynthetic water‐use efficiency? An example of Betula pendula

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