Air-space tissue in plants

Sifton, H. B.

doi:10.1007/bf02861138

Cited by 110 publications

(65 citation statements)

References 55 publications

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“…In this case plant survival becomes dependent upon the establishment of an oxygen flow from the atmosphere into the aerial organs and finally pumped into the rhizosphere, supporting root aerobic respiration and enhancing toxic forms detoxification (Burdick and Mendelssohn, 1987;Armstrong, 1979). Several halophytes developed root aerenchyma in order to increase root aeration (Sifton, 1945;Iversen, 1949;Armstrong, 1972). Other types of mechanisms of submergence tolerance include shoot elongation, a quiescence response to conserve energy until the water drawbacks, adventitious root formation and traits conferring the ability to preform underwater photosynthesis (Winkel et al, 2011;BaileySerres and Voesenek, 2008;Colmer and Voesenek, 2009).…”

Section: Introductionmentioning

confidence: 99%

Biophysical probing of Spartina maritima photo-system II changes during prolonged tidal submersion periods

Duarte

Santos

Marques

2014

Plant Physiology and Biochemistry

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a b s t r a c tSubmergence is one of the major constrains affecting wetland plants, with inevitable impacts on their physiology and productivity. Global warming as a driving force of sea level rise, tend to increase the submersion periods duration. Photosynthesis biophysical probing arise as an important tool to understand the energetics underlying plant feedback to these constrains. As in previous studies with Spartina maritima, there was no inhibition of photosynthetic activity in submerged individuals. Comparing both donor and acceptor sides of the PSII, the first was more severely affected during submersion, driven by the inactivation of the OEC with consequent impairment of the ETC. Although this apparent damage in the PSII donor side, the electron transport per active reaction centre was not substantially affected, indicating that this reduction in the electron flow is accompanied by a proportional increase in the number of active reaction centres. These conditions lead to the accumulation of excessive reducing power, source of damaging ROS, counteracted by efficient energy dissipation processes and anti-oxidant enzymatic defences. This way, S. maritima appears as a well-adapted species with an evident photochemical plasticity towards submersion, allowing it to maintain its photosynthetic activity even during prolonged submersion periods.

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Section: Introductionmentioning

confidence: 99%

Biophysical probing of Spartina maritima photo-system II changes during prolonged tidal submersion periods

Duarte

Santos

Marques

2014

Plant Physiology and Biochemistry

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“…When there is Walker et al, 1983;Angeles, 1992;Arber, 1920; Metan oxygen deficiency in flooded soils, the nitrogenase calfe, 1931; Sifton, 1945). The aerenchyma are conactivity (acetylene reduction rate) of the nodules is nected to the ambient atmosphere through hypertrorapidly inhibited (Bisseling et al, 1980;Hong et al, phied lenticels in the epidermis of stem, roots and nod-ules, with lenticels in the stem segments situated above the water level being especially crucial as entry points for oxygen diffusion to flooded tissues (Walker et al, 1983;James and Crawford, 1998;James and Sprent, 1999).…”

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confidence: 99%

Secondary Aerenchyma Formation and its Relation to Nitrogen Fixation in Root Nodules of Soybean Plants (Glycine max) Grown under Flooded Conditions

Shimamura

Mochizuki

Nada

et al. 2002

Plant Production Science

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“…edulis did not show alterations in diameter nor in intercellular spaces in the root cortex, which indicates that there is low substrate hypoxia or that this species is unable to form aerenchyma. Aerenchyma formation can avoid not only water stress (Levitt 1980) but also anoxia (Sifton 1945) caused by hydrocarbon contamination in the soil (Baker 1970). Thereby, there are species that under the effect of contaminated soil increase intercellular spaces (Pezeshki et al 2000) or respond to water stress by simultaneously increasing root diameter and reducing growth (Merkl et al 2004).…”

Section: Discussionmentioning

confidence: 99%

Phytotoxicity of petroleum-contaminated soil and bioremediated soil on Allophylus edulis

et al. 2011

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This study aimed to assess the effect of petroleum-contaminated and bioremediated soils on germination, growth and anatomical structure of Allophylus edulis. We tested oil-contaminated soil, bioremediated soil and non-contaminated soil. We evaluated germination percentage, germination speed index (GSI), biomass and length of roots and shoots, total biomass, root and hypocotyl diameter, thickness of eophylls and cotyledons, leaf area, eophyll stomatal index and seedling anatomy. Germination percentage, GSI, biomass and leaf area did not differ between treatments after 30 days. Root biomass and plant height were lower in the noncontaminated treatment. Root biomass and leaf area differed between treatments after 60 days. Thickness of cotyledons was higher in bioremediated soil than in other treatments. Root and eophyll structure showed little variation in contaminated soil. We conclude that A. edulis was not affected by petroleum in contaminated and bioremediated soils and that this species has potential for phytoremediation.

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Air-space tissue in plants

Cited by 110 publications

References 55 publications

Biophysical probing of Spartina maritima photo-system II changes during prolonged tidal submersion periods

Biophysical probing of Spartina maritima photo-system II changes during prolonged tidal submersion periods

Secondary Aerenchyma Formation and its Relation to Nitrogen Fixation in Root Nodules of Soybean Plants (Glycine max) Grown under Flooded Conditions

Phytotoxicity of petroleum-contaminated soil and bioremediated soil on Allophylus edulis

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