Anatomy of Succulence and CAM in 15 Species of Senecio

@article{Fioretto1988AnatomyOS,
  title={Anatomy of Succulence and CAM in 15 Species of Senecio},
  author={Antonietta Fioretto and Anna Alfani},
  journal={Botanical Gazette},
  year={1988},
  volume={149},
  pages={142 - 152}
}
The ability of some species of the genus Senecio to perform Crassulacean acid metabolism (CAM) in plants growing both under controlled conditions and outdoors and the anatomy of their photosynthesizing organs, leaves, and/or stems were investigated. The studied species differed in leaf morphology and in degrees of leaf and stem succulence. Malate accumulation differed with environmental conditions. The carbon isotope ratio δ13C indicated that, in most of the species, the C3 carboxylation… 
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References

SHOWING 1-10 OF 31 REFERENCES
Variability in Crassulacean Acid Metabolism: A Survey of North Carolina Succulent Species
TLDR
The correlation between succulence and Crassulacean acid metabolism was investigated in 28 succulent species growing in various habitats throughout North Carolina, emphasizing that one photosynthetic pathway does not characterize all succulents in North Carolina.
Environmental Influences on CAM Activity of Cissus quadrangularis
TLDR
Data indicate that under natural conditions CAM should effectively contribute to the successful adaptation of C. quadrangularis to its environment.
Effects of photoperiod and ageing on the carbon isotope composition of Bryophyllum daigremontianum Berger
TLDR
Changes in crassulacean acid metabolism in the leaves of Bryophyllum daigremontianum were studied comparatively under closely controlled and semi-natural conditions utilizing measurements of natural carbon isotope composition (δ13C) of the total leaf matter.
CAM, Transpiration, and Adaptive Mechanisms to Xeric Environments in the Succulent Cucurbitaceae
TLDR
Outdoor experiments demonstrated very low daily transpiration rates, relatively large nocturnal water loss, and malate accumulation, that is, the occurrence of crassulacean acid metabolism, which constitutes a high degree of physiological adaptation to drought.
Nocturnal Accumulation of Acid in Leaves of Wall Pennywort (Umbilicus rupestris) Following Exposure to Water Stress
TLDR
Physiological responses to water stress (drought) have been investigated in Umbilicus rupestris by comparing control and draughted plants with respect to diurnal fluctuations in the acid content of the leaves, CO2 exchange patterns and stomatal conductance, and a clear CAM-type pattern is observed.
CAM activity and day/night changes in the ultrastructure of stem chlorenchyma of Cissus quadrangularis L. as influenced by drought
TLDR
The maintenance of the cellular integrity accounts for the ability of C. quadrangularis to recover rapidly from water stress, and the increase in chlorophyll coment was higher in stressed plants.
Transpiration in Succulent Plants
TLDR
F. FROMME examines the cells of the central arch of the peridium of Peridermium Pini and finds that the apical cells ofthe central spore chains that have, before their metamorphosis into peridial cells, cut off intercalary cells below are morphologically aeciospores.
Crassulacean Acid Metabolism: Analysis of an Ecological Adaptation
TLDR
This chapter discusses the taxonomy and Geographical Distribution of CAM plants, Morphology, Anatomy, and Ultrastructure of CAM Plants, and Metabolic Control of CAM.
Formulae for determination of chlorophyllous pigments extracted with n,n-dimethylformamide.
  • R. Moran
  • Environmental Science, Chemistry
    Plant physiology
  • 1982
TLDR
The extraction of chlorophylls in higher plant tissue using N,N-dimethylformamide expedites the process and enables the determination of small samples with low pigment level, and formulae for quantitative determination of pigments concentrations were developed.
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