Morpho-physiological responses in Cedrela fissilis Vell. submitted to changes in natural light conditions: implications for biomass accumulation

Sanches, Maria Cristina; Marzinek, Juliana; Bragiola, Natália Guariglia; Nascimento, André R. Terra

doi:10.1007/s00468-016-1474-6

Cited by 21 publications

(15 citation statements)

References 60 publications

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“…As pointed by Avalos and Mulkey (2014), a small seedling with little leaf area and root dry mass, as found in C. sceptrum and F. florida under shade, could limit the capacity of these species to increase resource acquisition under new light conditions. This pattern was not found in Cedrela fissilis, a tree species that showed complete recovery of total biomass when transferred from shade to full sunlight (Sanches et al 2017). Although it is often assumed that lianas are light-demanding species (Dewalt et al 2010), at least in the initial life stage, the relative growth and total biomass accumulation values are close to those found in late-successional tree species and lower than those found for pioneer tree species Válio 2003, Feijó et al 2009).…”

Section: Cuspidaria Spectrummentioning

confidence: 85%

Chlorophyll fluorescence and initial growth of two liana species, Cuspidaria sceptrum (Cham.) L.G. Lohmann and Fridericia florida (DC) L.G. Lohmann, under changes of natural light conditions

Paula¹,

Boselli²,

Sanches³

2019

Photosynt.

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The physiological alterations as well as the growth were evaluated in seedlings of two liana species, Cuspidaria sceptrum and Fridericia florida, which were transferred from shade to full sunlight conditions. We cultivated one group of seedlings under full sunlight, the second group under natural shade beneath canopy, and the third group was transferred from shade to full sunlight. Reductions on the potential quantum yield of PSII (Fv/Fm) during predawn was detected under full sunlight, but these responses were more pronounced when the plants were transferred from shade to full sunlight. C. cuspidaria lost all leaves developed under shade a few days after transfer. However, at 60 d after transfer, new leaves were already developed and their Fv/Fm values were similar to full sunlight plants. F. florida was able to maintain its leaves after transfer and exhibited gradual recovery of Fv/Fm over time. The initial photoinhibition influenced growth responses of these liana species, in spite of their heliophyte character as adult plants.

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Section: Cuspidaria Spectrummentioning

confidence: 85%

Chlorophyll fluorescence and initial growth of two liana species, Cuspidaria sceptrum (Cham.) L.G. Lohmann and Fridericia florida (DC) L.G. Lohmann, under changes of natural light conditions

Paula¹,

Boselli²,

Sanches³

2019

Photosynt.

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“…On the other hand, when grown in shade, P. pseudocaryophyllus showed preferential investment in shoots as expected for forest species (Figure 2 and Table 3). In forest environments, individuals with higher height and specific leaf area are more competitive, once they can optimize radiation absorption by increasing the possibility of light interception (Gignoux et al, 2016;Sanches et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Phenotypic Plasticity of Pimenta pseudocaryophyllus (Gomes) Landrum Under Different Light Conditions

et al. 2019

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The heterogeneous light pattern in forest environments leads to specific morphological and physiological responses. However, anthropogenic pressures in areas such as Atlantic Forest and Cerrado are modifying the light availability, and consequently the forest community composition. The aim of this study was to investigate the plasticity of forest species Pimenta pseudocaryophyllus under full sunlight and shade conditions. P. pseudocaryophyllus showed typical shade plant phenotype, with higher net photosynthesis, transpiration, and chlorophyll a and b contents when cultivated under this condition. The decrease in net photosynthesis under full sunlight conditions is probably related to PSII photoinhibition. In addition, under full sunlight, reduced height, number of leaves, and specific leaf area was observed, while plants in shade increased these characteristics. P. pseudocaryophyllus did not show high morphological and physiological plasticity, which may be a maladaptive response. It was concluded that forest disturbances could compromise the occurrence and survival of P. pseudocaryophyllus.

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“…Light influences multiple leaf related characteristics, including area, branch number, and water content [19,20,21]. Plants often invest large amounts of photosynthateto construct supporting structures and enlarging leaf area during light competition with neighbors [22,23,24].…”

Section: Introductionmentioning

confidence: 99%

Effects of light intensity on non-structural carbohydrate contents and C:N:P stoichiometry in Cunninghamia lanceolata and Schima superba

Liu

Huang

Wang

et al. 2020

Preprint

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Background: An understanding of the light requirement of tree species has paramount importance in management of mixed species forests. Here, we examined changes in leaf morphological traits, non-structural carbohydrate contents and C:N:P stoichiometry in Cunninghamia lanceolata and Schima superba seedlings that were grown under five light intensity levels (5%, 15%, 40%, 60%, and 100% sunlight) in a shade house. Results: Mean leaf area was significantly larger under 40% light intensity for C. lanceolata while maximum mean leaf area was observed under 15% light intensity for S. superba seedlings, whereas leaf mass per area decreased consistently with decreasing light intensity in S. superba; Non-structural carbohydrate content was higher for S. superba than C. lanceolata when seedlings were exposed to 100%, 15% and 5% light intensity; Leaf C:N ratio decreased while N:P ratio increased with decreasing light intensity; leaf C:P ratio was highest in 40% light intensity for C. lanceolata and in 60% light intensity for S. superba. Conclusion: S. superba is better adapted to low light intensity than C. lanceolata through enlarged leaf area and increased carbohydrate reserves that allow the plant to better maintain C balance. From mixed species planting viewpoint, it would be advisable to plant S. superba later once the canopy of C. lanceolata is well developed but allowing enough sunlight (up to 15%-60%).

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Morpho-physiological responses in Cedrela fissilis Vell. submitted to changes in natural light conditions: implications for biomass accumulation

Cited by 21 publications

References 60 publications

Chlorophyll fluorescence and initial growth of two liana species, Cuspidaria sceptrum (Cham.) L.G. Lohmann and Fridericia florida (DC) L.G. Lohmann, under changes of natural light conditions

Chlorophyll fluorescence and initial growth of two liana species, Cuspidaria sceptrum (Cham.) L.G. Lohmann and Fridericia florida (DC) L.G. Lohmann, under changes of natural light conditions

Phenotypic Plasticity of Pimenta pseudocaryophyllus (Gomes) Landrum Under Different Light Conditions

Effects of light intensity on non-structural carbohydrate contents and C:N:P stoichiometry in Cunninghamia lanceolata and Schima superba

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