Einfluss von Chlorcholinchlorid und Ethrel auf Zellteilung und Zellstreckung bei Primärblättern von Weizenkeimpflanzen

Koshuchowa, Svetlana; Münnich, H.; Göring, H.

doi:10.1007/bf02888718

Cited by 10 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The determination of the cell length of cortical cells in cell files has proved suitable for detecting the influence on these processes, since the cells are uniform in cell type. Thus, the percentage contribution of cell elongation and cell division to the shortening of the stem section can be calculated from the length of the internode and the length of the cortical cells (Koshuchowa et al 1979, Nitsche et al 1985. The stunting of the 1st internode at a low concentration of tetcyclacis is primarily due to reduced cell elongation, whereas with an increasing concentration (> 10"* M) the internode contained fewer cells; i.e.…”

Section: Sunflower Plants That Had Been Grown Hydroponically and Treamentioning

confidence: 99%

“…However, in stem histogenesis an inhibition of sponsible for stem histogenesis (Sachs 1965). A distinc-cell division and enlargement in responsive plants was tion is drawn between growth retardants, as for example described for compounds of both classes of growth requaternary ammonium compounds, pyrimidines, tri-tardants -for the quaternary ammonium derivatives azoles and norbornenodiazetines that interfere with the chlormequat chloride and AMO-1618 (Sachs 1965), the biosynthesis ofgibberellins and sterols (Dicks 1980, Ra-pyrimidine ancymidol (Shoub andDe Hertogh 1974) and the norbornenodiazetine tetcyclacis (Nitsche et al 1985) as well as for ethephon (Osborne 1975, Koshuchowa et al 1979.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of growth retardants on the internode and ethylene production of sunflower plants

Sauerbrey¹,

Großmann²,

Jung³

1987

Physiologia Plantarum

View full text Add to dashboard Cite

The growth‐retarding activity of the norbornenodiazetine tetcyclacis and the di‐oxanylalkenyl triazole LAB 150 978 as well as the ethylene‐forming compounds 2‐chloroethyl‐phosphonic acid (ethephon) and 1‐amino‐cyclopropane‐l‐carboxylic acid (ACC) on stem histogenesis and ethylene production of sunflower plants (He‐lianthus annuus L. cv.Spanners Allzweck) has been studied. The shoot growth of plants hydroponically grown and treated was reduced by the compounds. The shortening in the length of the 1st internode caused by tetcyclacis and LAB 150 978 was mainly induced by inhibition of cell division (the internode possessed fewer cortical cells per cell file). In contrast, ethephon and ACC decreased internode elongation mainly by reducing the rate of cell enlargement. The ethylene production of sunflower seedlings cultivated on agar nutrient medium rose with increasing concentrations of ethephon and ACC, the shoot length of the plants being progressively reduced. Tetcyclacis and LAB 150 978 inhibited both the formation of ethylene and shoot growth. It is suggested that in contrast to ethephon and ACC, tetcyclacis and LAB 150 978 do not achieve their growth‐retarding effect by influencing the production of ethylene.

show abstract

Section: Sunflower Plants That Had Been Grown Hydroponically and Treamentioning

confidence: 99%