Oscillatory Transpiration and Water Uptake of <i>Avena</i> Plants

Klockare, Rune; Johnsson, Anders; Brogårdh, T.; Hellgren, Mona

doi:10.1111/j.1399-3054.1978.tb04100.x

Cited by 11 publications

(7 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Stomatal cycling in the dark with a short and irregular period (less than 30 min), as exhibited by poplar, has previously been reported only by Stalfelt (1929). Longer cycles in the dark (1-2 h) have also been rarely observed (Ehrler 1971, Hopmans 1971, Klockare et al 1978. However, such behavior can be plausibly explained.…”

Section: Cycling In the Darkmentioning

confidence: 96%

“…Oscillations of stomatal aperture occur in many plant species, even under constant environmental conditions. Oscillations have been observed commonly in the light (Barrs 1971, Cowan 1972, Lang et al 1969, Nagarajah 1978, Tyree and Cameron 1977, but rarely in the dark (Ehrler 1971, Klockare et al 1978, Stalfelt 1929. In most reported data, cycling is regular both in frequency and in amplitude, and there is generally good synchrony of stomatal movements among all the leaves of a plant (Cox 1968, Ehrler et al 1965, Lang et al 1969, Levy and Kaufman 1976.…”

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Oscillations in stomatal conductance of hybrid poplar leaves in the light and dark

Reich

1984

Physiologia Plantarum

View full text Add to dashboard Cite

Cycling of stomatal conductance in three hybrid poplar (Populus sp.) cultivars was observed under a variety of conditions. Illumination of plants kept previously in the dark induced very large oscillations with a period of about 40 min and large oscillations with a shorter period (< 10 min) were superimposed on the longer cycles. During these oscillations, large changes in conductance could occur very rapidly (1.0 cm s−1 in 3 min). Plants in constant light also displayed both long and short term cycles in conductance, but these were smaller in amplitude than those induced by sudden illumination. Stomatal oscillations were also observed in darkness and after darkening of previously illuminated plants. These oscillations had shorter (< 30 min) and less regular periods than those observed in the light. Such cycling in the dark is rare. Cycling of the two leaf surfaces was sometimes in synchrony in the light, and more so after a perturbation. Little synchrony between the two surfaces was observed in the dark. Stomatal movements of different leaves on a plant were usually relatively independent. Transient stomatal opening occurred following leaf excision in the light or dark, and often after sudden darkening of intact leaves. Also, stomata of intact leaves sometimes transiently closed following illumination.

show abstract

Section: Cycling In the Darkmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 97%

Oscillations in stomatal conductance of hybrid poplar leaves in the light and dark

Reich

1984

Physiologia Plantarum

View full text Add to dashboard Cite

show abstract

“…The alternating pulse response was affected by increased ion concentration, particularly sodium ions. In the second study, again on Avena leaves, Klockare et al . (1978) found that when the light intensity was varied, a transition in the transpiration oscillation period occurred at a certain irradiance level.…”

Section: Discussionmentioning

confidence: 99%

“…However, few studies have aimed at a systematic variation of the parameters of the water control system to search for period doubling sequences and possibly even more complicated curve forms. One attempt was made by Klockare et al . (1978) who varied the light intensity while recording the rhythmic behaviour of the transpiration.…”

Section: Introductionmentioning

confidence: 99%

Self‐sustained oscillations in plant water regulation: Induction of bifurcations and anomalous rhythmicity

2003

View full text Add to dashboard Cite

Summary• The complex dynamics of the water regulatory system was explored by studying the induction of period doublings (period-1 to period-2 to period-4) and other complicated oscillatory patterns (period-3 and period-5) in the transpiration of young oat plants.• A gas exchange system was used to record the transpiration of primary leaves of Avena sativa cv. Seger after exposure to various stimuli.• Period-1 oscillations were induced from steady-state transpiration by a light pulse, by increasing the xylem resistance to water flow or by temporarily lowering the root medium temperature. Similarly, period doubling (period-1 to period-2) was induced by lowering the root medium temperature temporarily or by increasing the xylem resistance. The more complicated oscillatory patterns (period-3, period-4, period-5) were induced by including different concentrations of KCl or KNO 3 in the root medium of root excised, xylem-compressed plants.• The range of oscillatory curve forms resembles those displayed by mildly chaotic nonlinear systems. The water regulatory system is discussed in relation to these nonlinear systems. Few studies of such complicated dynamics in plant systems exist.

show abstract

“…This light intensity was high enough to maintain stomatal oscillations (cf. Klockare et al 1978). Cuttings were collected from several trees of the coastal plain of Israel.…”

Section: Materials and Methods Plant Materialsmentioning

confidence: 99%

An endogenous circadian rhythm of transpiration in Tamarix aphylla

Hagemeyer

Waisel

1987

Physiologia Plantarum

View full text Add to dashboard Cite

An endogenous circadian rhythm in the transpiration of Tamarix aphylla (L.) Karst. was found for plants grown in continuous light under laboratory conditions. The mean period (±SD) was 21.7±2.3 h (n = 121). No such rhythm was observed in continuous darkness, except for one small hump at the time of the first cycle. The influence of NaCl, Cd(NO3)2 and LiCi on the rhythmic behaviour of young T. aphylla plants was investigated. NaCl concentrations of up to 150 mM reduced the overall transpiration rates of the plants, but did not change the period of the rhythm. The amplitude and the mesor of the oscillations were inversely correlated with the NaCl concentration. A similar influence was found for Cd(NO3)2, but with concentrations that were approximately three orders of magnitude smaller than those of the NaCl treatments. The rhythmic behaviour of the plants was not altered by 10 mM LiCl. It is suggested that the described rhythm of transpiration may have a dual effect: (a) it might cause a partial closure of the stomates during midday hours and (b) it might serve as a possible synchronizer (“master clock”) for other rhythmic phenomena in the plants.

show abstract

Oscillatory Transpiration and Water Uptake of Avena Plants

Cited by 11 publications

References 15 publications

Oscillations in stomatal conductance of hybrid poplar leaves in the light and dark

Oscillations in stomatal conductance of hybrid poplar leaves in the light and dark

Self‐sustained oscillations in plant water regulation: Induction of bifurcations and anomalous rhythmicity

An endogenous circadian rhythm of transpiration in Tamarix aphylla

Contact Info

Product

Resources

About