The Action of Abscisic Acid on the Circadian Petal Movement of Kalanchoe blossfeldiana

Schrempf, Martin

doi:10.1016/s0044-328x(80)80281-9

Cited by 13 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absence of changes of the period when imipramine was permanently offered must be discussed on the same basis as, e.g., the abscisic acid effects on circadian systems (Schrempf 1980, Skrove et al 1982. The concentration necessary to use in the present experiments on continuous application of imipramine (10^' and 5 -10"^ M) is small compared to the concentration of the 4 h pulses causing advances of some hours (10"' M).…”

Section: Phas€ Osfferencementioning

confidence: 88%

“…As in other circadian studies one has, therefore, to explain why only one type of phase shifts occurs. A similar example is the abscisic acid effects on the Kalanchoe system (Schrempf 1980) producing only phase delays. The results may be explained by feedback effects (Schrempf 1980) or by several, additional, effects (Skrove et al 1982).…”

Section: Phas€ Osfferencementioning

confidence: 99%

See 1 more Smart Citation

Imipramine affects circadian leaf movements in Oxalis regnellii

Rinnan¹,

Johnsson²,

Götestam³

1984

Physiologia Plantarum

View full text Add to dashboard Cite

1984. Imipramine affects circadian leaf movements in Oxalis regnellii. -Physiol. Plant. 62: 153-156.The sensitivity of the circadian leaf movements of Oxalis regnellii Mig. to imipramine (a tricyclie dibenzazepine) was investigated. Imipramine, like Li+, is used as a therapeutic agent against depressive disorders in man. The therapeutic effects cf the two substances might be mediated via effects on basic circadian rhythms at the cellular level. It was indeed possible to influence the circadian movements of Oxalis by imipramine; pulses (Mh'M, 4h) phase shifted the rhythms and caused advances. A phase response curve is presented. No period change of the movements was caused by permanent presence of imipramine (5 -10-' or Vy^Sf). The nature of the imipramine-induced phase shift is discussed and compared with Li+ effects on the same circadian system.Additional key words -Circadian rhythm, depressive disorders. T. Rinnan and A. Johnsson (reprint requests),

show abstract

Section: Phas€ Osfferencementioning

confidence: 88%

Section: Phas€ Osfferencementioning

confidence: 99%

Imipramine affects circadian leaf movements in Oxalis regnellii

Rinnan¹,

Johnsson²,

Götestam³

1984

Physiologia Plantarum

View full text Add to dashboard Cite

show abstract

“…Variation in the extent of expansion in different regions of the petal probably explains the cupping of the growing petals and may contribute to the reflexing of petals during flower opening. These characteristics distinguish the process of rose opening from that of flowers such as Kalanchoe, where cycles of reversible petal expansion are caused by a temporary redistribution of ions between the petal mesophyll and epidermis (18).…”

Section: Discussionmentioning

confidence: 99%

Changes in Carbohydrates and Osmotic Potential during Rhythmic Expansion of Rose Petals

Evans

Reid

1988

J. Amer. Soc. Hort. Sci.

View full text Add to dashboard Cite

Rhythmic pulses of irreversible petal expansion in rose (Rosa hybrida L. ‘Sonia’) petals cause diurnal changes in the rate of flower opening. Time-lapse cinematography revealed a transient increase in the rate of rose flower opening that commenced shortly before the onset of a light period and lasted for a few hours. Petal expansion, which occurred sequentially from the outer to the innermost whorl, involved rhythmic increases in fresh and dry weights. The amount of expansion was greatest in the distal portion of each petal and least near the petal base. Periods of rapid expansion were accompanied by decreases in starch and increases in soluble sugars in the petals, but the total carbohydrate content of the petals remained constant during a light–dark cycle. During expansion, the osmotic potential of the outer petal increased from −790 to −690 kPa. Starch hydrolysis during petal growth appears to be important for maintenance of cell size, but it is not the factor controlling cell expansion.

show abstract

“…It is well established that abscisic acid (ABA) and the fungal toxin fusicoccin (FC) can modify the natural leaf movements of some species of nyctinastic plants. ABA induces the closing of leaves during the daytime, while FC promotes the opening of closed leaves at night (Bonnemain et al, 1978;Schrempf, 1980;Otsiogo-Oyabi & Roblin, 1984). MacRobbie (1981MacRobbie ( , 1982 showed that ABA affected the movement of ions across tonoplast and plasmalemma by stimulating cation and anion flux from guard to subsidiary cells.…”

Section: Introductionmentioning

confidence: 99%

THE EFFECT OF ABSCISIC ACID AND FUSICOCCIN ON MALIC ACID CONCENTRATION IN PULVINI OF PHASEOLUS COCCINEUS L.

Białçzyk

Lechowski

1987

New Phytologist

View full text Add to dashboard Cite

SUMMARYFusicoccin and abscisic acid can modify the movements of some nyctinastic plants. This paper reports the effects of these two compounds on the concentrations of malic acid in pulvini of Phaseolus coccineus L. in the transition period of two phases of the circadian rhythm. The concentrations of malic acid in the two parts of the pulvinus, extensor and flexor, depend upon the phase of leaf movements. Abscisic acid and fusicoccin significantly affected the content of malic acid in leaves compared with the control. In the two phases of the diurnal cycle investigated, abscisic acid markedly reduced the production of malic acid in the fiexor and extensor regions of the pulvinus, and treatment with fusicoccin produced small but distinct increases in the concentration of malic acid in the same regions. The results are discussed with particular reference to the effect of abscisic acid and fusicoccin on the activity of the H+ pump associated with the control of turgor in cells.

show abstract

The Action of Abscisic Acid on the Circadian Petal Movement of Kalanchoe blossfeldiana

Cited by 13 publications

References 18 publications

Imipramine affects circadian leaf movements in Oxalis regnellii

Imipramine affects circadian leaf movements in Oxalis regnellii

Changes in Carbohydrates and Osmotic Potential during Rhythmic Expansion of Rose Petals

THE EFFECT OF ABSCISIC ACID AND FUSICOCCIN ON MALIC ACID CONCENTRATION IN PULVINI OF PHASEOLUS COCCINEUS L.

Contact Info

Product

Resources

About