The Inhibitory Effect of Oxygen on the Growth of Wheat Roots

Eliasson, Lennart

doi:10.1111/j.1399-3054.1958.tb08253.x

Cited by 16 publications

(6 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An oxy^ien tension in equilibrium with pure oxygen is supra-optimal for roots |cf. Eliasson 1958) in the present instance reducing the vohimc growth to one halt" the normal value, but the roots are thin witb no dwarf symptoms although the intercellularies are water-filled. The conspicuous result is that the stunted dwarf growth is prevented by oxygen, but the gas intercelliiltiries are not restored.…”

Section: Intercellularies In the Tipscontrasting

confidence: 39%

Growth and Formation of Intercellularies in Root Meristenis

Burström¹

1959

Physiologia Plantarum

View full text Add to dashboard Cite

Section: Intercellularies In the Tipscontrasting

confidence: 39%

Growth and Formation of Intercellularies in Root Meristenis

Burström¹

1959

Physiologia Plantarum

View full text Add to dashboard Cite

“…At pO, pressure above 0.32 MPa, germination ceased altogether (cf. Eliasson 1958). The general pattern of pressure effects was similar in water and in 0.2 M NaCl, although the absolute germination in the salt solution was lower than the control by some 10-15%.…”

Section: Resultsmentioning

confidence: 77%

Effects of pressure on germination of seeds of wheat (Triticum aestivum cv. Barqai) in saline and in non‐saline media

Malki¹,

Waisel²

1987

Physiologia Plantarum

View full text Add to dashboard Cite

The effects of an increase in the absolute environmental pressure (air, N2, O2 or hydrostatic), up to 1 MPa, on the germination of wheat seeds and the survival of wheat seedlings were studied. Seeds were exposed to saline and non‐saline media, in Petri dishes, on a double layer of filter paper. They were then introduced for different time periods into a pressure chamber and pressurized by the addition of N2 to the chamber in the range of ambient to 1 MPa. Subsequently the seeds were left to germinate under normal atmospheric conditions. Seed germination and subsequent growth decreased during the first 6 h and then regained the control levels. Nevertheless, application of similar pressures to seeds which had been submerged under water was highly inhibitory. Such effects of pressure seem to be the result of flooding with water of some crucial intercellular spaces and a consequent disturbance of O2 supply to the germinating embryo. The additional flood‐water comprised only 1–3% of the total water content of 24‐h‐old seedlings. Sensitivity of the submerged seeds and the germinating seedlings to pressure varied with age and developmental stage. Highest sensitivity to pressure was obtained with 12 to 72‐h‐old submerged seedlings. Removal of the excess water after the pressure treatment restored the germinability of the seeds.

show abstract

“…They felt that 2 solubility and diffusion through the tissues was reduced by the water. (Eliasson, 1958 (1942) found that when oat seeds were soaked in oxygenated water, subsequent growth was inhibited when compared to aerated controls. (Mayer and Shain, 1974).…”

Section: Discussionmentioning

confidence: 99%

Germination of Capsicum annuum L. at low temperature / by James Thomas Watkins.

Watkins¹

1982

View full text Add to dashboard Cite

The cause of slow and nonuniform germination of pepper (Capsicum annuum L.) seeds at low temperature was investigated. There was no evidence of a Teachable or extractable germination inhibitor being activated or formed due to low temperature exposure. Auxin and kinetin applications did not effect germination rate. However, gibberellic acid (GA) treatments effectively increased germination rates at 15°a nd 25°C. Gibberellic acid 4+7 was more effective than GA 3. Gibberellic acid stimulated germination rate under osmotic stress and the presence of a GA synthesis inhibitor reduced germination rate. High oxygen (0 2) concentrations stimulated pepper seed germination rates at 25°C but inhibited germination rates at 15°. Gibberellic acid applications could not overcome the inhibitory effect of 100% 2 at 15. Seed respiratory activity was greater at 25°i n 100% 2 than in air, but the additional 2 did not alter respiratory pathways. At 15°, total respiration, respiravi loss of cellular integrity and endosperm thickness in front of the radicle. Gibberellic acid treatments stimulated endosperm breakdown. Pepper seed cell wall degrading enzyme activity increased with increased imbibition time, with temperature, and GA treatment. Pepper seed enzyme extracts preferentially degraded a galactomannan substrate but did not degrade a carboxymethylcellulose substrate indicating that manno-polysaccharides may be components of pepper seed endosperms.

show abstract

The Inhibitory Effect of Oxygen on the Growth of Wheat Roots

Cited by 16 publications

References 26 publications

Growth and Formation of Intercellularies in Root Meristenis

Growth and Formation of Intercellularies in Root Meristenis

Effects of pressure on germination of seeds of wheat (Triticum aestivum cv. Barqai) in saline and in non‐saline media

Germination of Capsicum annuum L. at low temperature / by James Thomas Watkins.

Contact Info

Product

Resources

About