Divergence of Catalase and Respiration in Germination

Rhine, Louisa E.

doi:10.1086/333355

Cited by 16 publications

(8 citation statements)

References 11 publications

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“…Where the oxidase is present in small am-ounts, this lack of uniformity in the degree of germination in the indi- the food supply is apparently exhausted. This depression in the catalase activity is not in accordance with the findings of CROCKER and HARRINGTON (6) for grass seeds, but does agree with the work of RHINE (26) for wheat, feterita, clover, mustard, radish, and buckwheat, and of LANTZ (17) for corn. RHINE concluded that catalase increased with the need of the plant to destroy the injurious substances produced in respiration, and thus these by-products stimulated the production of catalase.…”

Section: Li~~~~~~~~vcontrasting

confidence: 61%

“…CROCKER an1d HARRINGTON (6) founid this same correlation in the seeds of Johnson grass but not in Amaranthus. RHINE (26) usinig a numiiber of different seeds colncluded that catalase activity is a measure of the metabolic activity only when there is a rapid chanige in respiration. The absence of catalase activity in certain blue green algae (14) and in anaerobic bacteria (20) indicates that catalase is not essential to the respiration of all cells.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Environmental Factors on Oxidizing Enzymes of Rose Mallow Seeds

Staley

1940

Plant Physiol.

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Section: Li~~~~~~~~vcontrasting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Effects of Environmental Factors on Oxidizing Enzymes of Rose Mallow Seeds

Staley

1940

Plant Physiol.

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“…Appleman (1918), Crocker and Harrington (1918), Davis (1930), and others have satisfactorily shown that catalase is directly correlated with respiration in a great many cases. Rhine (1924) and Lantz (1927) found that catalase activity and respiration do not always follow the same curve. Catalase has been shown by Davis (1925), Neller (1931), and Nemec and Duchon (1921,1922 to be a definite indicator of viability, and Flemion (1931) and Pope (1932) have shown that it is directly related to growth.…”

Section: Catalasementioning

confidence: 97%

The Inter‐relations of Catalase, Respiration, After‐ripening, and Germination in Some Dormant Seeds of the Polygonaceae

Ransom¹

1935

American J of Botany

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Mature seeds of some species of the Polygonaceae have dormant embryos which must undergo a period of after-ripening before germination can take place. Studies reported in this paper have to do with the dormancy, after-ripening, catalase, respiration, and germination of seeds of several species of this family. Especial attention has been given the relation between the so-called enzyme catalase and the rate of respiration as found in these seeds.As the enveloping coats have a direct relation to the rate of after-ripening and germination in the seeds, a brief morphological description of the seeds will be given.According to Woodcock (1914) the seed of the polygonums at maturity is enclosed in a thick hard coat, consisting of the cutinized epidermal layer and the compressed inner layers of the ovary. The integuments have become closely compressed and their crushed remains form a thin layer surrounding the embryo and endosperm. Just inside the integuments is a thin aleurone layer. The embryo is free from the mealy endosperm and occupies a cavity just beneath the aleurone layer in an angle of the seed. The two inner layers forming the seed coat and aleurone layer cannot be removed without separating the embryo from the endosperm, so experiments have necessarily been limited to entire fruits and to seeds with the fruit coat removed.Fruits of Polygonum scandens, P. pennsylvanicum, P. aviculare, P. acre, P. virginianum, P. lapathifolium, and Rumex crispus were collected in October, 1931, at Manhattan, Kansas. They were then dried, cleaned, and the lighter and immature fruits eliminated by a seed blower.The fruit coats on some seeds of Polygonum scandens were removed by treatment with concentrated H 2S0 4• In this process the fruits were treated with the acid for five minutes, after which they were washed thoroughly and the ovary wall was rubbed off. Due to the structure of the seed, it was found impossible to remove the seed coat mechanically without injury to the embryo.Germination tests previous to low temperature treatment were made upon both fruits and seeds in Petri dishes with moist cotton as a medium. Various temperatures were employed, and observations were made from time to time to detect any signs of germination. AFTER-RIPENING AND GERMINATION OF SEEDSIn the seeds of Polygonum spp. studied in these experiments, the embryos are dormant at maturity. About 6S per cent of the mature seeds of Rumex crispus germinated readily at room temperature, though the remaining 3S per cent were dormant and required varied periods of low temperature treatment in the imbibed condition at 3°e. before germination took place.The fruit coat and probably the seed coat and aleurone layer are instrumental in retarding the after-ripening and preventing the germination of the seeds of the Polygonaceae. Seeds with the fruit coats intact required three times as long for after-ripening as those with the fruit coats removed. Also the rate of respiration in the seeds with the fruit coats removed was considerably higher than in those with the fr...

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“…Morgulis (23), Rhine (26), and Baas-Becking and Hampton (3) point out that the action of catalase is a type of balanced reaction, and thus the ratio between the amount of catalase and the amount of peroxid used is important. Morgulis shows that an excess of peroxid retards catalase activity.…”

Section: The Effect Of the Quantity Of Peroxid Used In Catalase-determentioning

confidence: 99%

“…Crocker and Harrington (13) found a close correlation between catalase activity and respiration in Johnson grass seed, but no correlation between catalase activity and respiration in the seeds of Amaranthus. Rhine (26) concluded that in germinating seeds in the early stages catalase activity at first decreases while respiration shows a gradual increase. In later stages of germination, both catalase activity and respiration increase.…”

Section: Introductionmentioning

confidence: 99%

Respiration in Corn With Special Reference to Catalase

Lantz

1927

American J of Botany

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Divergence of Catalase and Respiration in Germination

Cited by 16 publications

References 11 publications

Effects of Environmental Factors on Oxidizing Enzymes of Rose Mallow Seeds

Effects of Environmental Factors on Oxidizing Enzymes of Rose Mallow Seeds

The Inter‐relations of Catalase, Respiration, After‐ripening, and Germination in Some Dormant Seeds of the Polygonaceae

Respiration in Corn With Special Reference to Catalase

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