Specific leaf areas of the tank bromeliad Guzmania monostachia perform distinct functions in response to water shortage

Freschi, Luciano; Takahashi, Cassia Ayumi; Cambuí, Camila Aguetoni; Semprebom, Thais Ribeiro; Cruz, Aline Bertinatto; Mioto, Paulo Tamaso; Versieux, Leonardo M.; Calvente, Alice; Latansio-Aidar, Sabrina Ribeiro; Aidar, Marcos Pereira Marinho; Mercier, Helenice

doi:10.1016/j.jplph.2009.10.011

Cited by 86 publications

(79 citation statements)

References 27 publications

(57 reference statements)

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“…For instance, as observed for rosette bromeliads [90], some base-apex longitudinal gradient in CAM expression might also be present along the leaves of Agave sisalana, in which CO 2 uptake in the more basal and younger leaf portion occurred almost exclusively during daytime, whereas a gas exchange pattern typical of CAM photosynthesis was observed in the more mature leaf tip (J. Hartwell, personal communication). In this study, conducted in detached leaves, all leaf portions received the same amount of PAR incidence, ensuring that these changes in CO 2 uptake pattern would not simply be a result of distinct light availability along the leaf blade.…”

Section: Cam In Agavaceaementioning

confidence: 87%

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CAM Photosynthesis in Bromeliads and Agaves: What Can We Learn from These Plants?

Matiz¹,

Mioto²,

Mayorga³

et al. 2013

Photosynthesis

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Section: Cam In Agavaceaementioning

confidence: 87%

“…More recently, Freschi and cols. [90] studied the upregulation of CAM in response to drought in G. monostachia. The authors found that the plants presented CAM-idling after seven days of drought.…”

Section: Type III Bromeliadsmentioning

confidence: 99%

CAM Photosynthesis in Bromeliads and Agaves: What Can We Learn from These Plants?

Matiz¹,

Mioto²,

Mayorga³

et al. 2013

Photosynthesis

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“…Under frequently rainy conditions, CAM can permit the recycling of respiratory CO 2 through CAM idling when leaf gas exchange is blocked by dense arrays of wet leaf trichomes (Pierce et al, 2002;Freschi et al, 2010). The high diversity of CAM epiphytic bromelioids in the Atlantic Forest region may primarily reflect this advantage of CAM.…”

Section: Dry Conditions Favor Cammentioning

confidence: 99%

Adaptive radiation, correlated and contingent evolution, and net species diversification in Bromeliaceae

Givnish

Barfuss

et al. 2014

Molecular Phylogenetics and Evolution

348

408

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“…PEPC (EC 4.1.1.31) and MDH (EC 1.1.1.37) extraction and assay were carried out as described by Freschi et al (2010). PEPCK (EC 4.1.1.38) activity was determined according to the procedure of Borland et al (1998), with modifications.…”

Section: Enzyme Activitiesmentioning

confidence: 99%

Nitric Oxide Mediates the Hormonal Control of Crassulacean Acid Metabolism Expression in Young Pineapple Plants

Freschi¹,

Rodrigues²,

Domingues³

et al. 2010

Plant Physiol.

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Genotypic, developmental, and environmental factors converge to determine the degree of Crassulacean acid metabolism (CAM) expression. To characterize the signaling events controlling CAM expression in young pineapple (Ananas comosus) plants, this photosynthetic pathway was modulated through manipulations in water availability. Rapid, intense, and completely reversible up-regulation in CAM expression was triggered by water deficit, as indicated by the rise in nocturnal malate accumulation and in the expression and activity of important CAM enzymes. During both up-and down-regulation of CAM, the degree of CAM expression was positively and negatively correlated with the endogenous levels of abscisic acid (ABA) and cytokinins, respectively. When exogenously applied, ABA stimulated and cytokinins repressed the expression of CAM. However, inhibition of water deficit-induced ABA accumulation did not block the up-regulation of CAM, suggesting that a parallel, non-ABA-dependent signaling route was also operating. Moreover, strong evidence revealed that nitric oxide (NO) may fulfill an important role during CAM signaling. Up-regulation of CAM was clearly observed in NO-treated plants, and a conspicuous temporal and spatial correlation was also evident between NO production and CAM expression. Removal of NO from the tissues either by adding NO scavenger or by inhibiting NO production significantly impaired ABA-induced up-regulation of CAM, indicating that NO likely acts as a key downstream component in the ABA-dependent signaling pathway. Finally, tungstate or glutamine inhibition of the NO-generating enzyme nitrate reductase completely blocked NO production during ABA-induced up-regulation of CAM, characterizing this enzyme as responsible for NO synthesis during CAM signaling in pineapple plants.

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Specific leaf areas of the tank bromeliad Guzmania monostachia perform distinct functions in response to water shortage

Cited by 86 publications

References 27 publications

CAM Photosynthesis in Bromeliads and Agaves: What Can We Learn from These Plants?

CAM Photosynthesis in Bromeliads and Agaves: What Can We Learn from These Plants?

Adaptive radiation, correlated and contingent evolution, and net species diversification in Bromeliaceae

Nitric Oxide Mediates the Hormonal Control of Crassulacean Acid Metabolism Expression in Young Pineapple Plants

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