Acid &amp; neutral gibberellin-like substances in potato tubers

Hayashi, Fumio; Blumenthal-Goldschmidt, S.; Rappaport, Lawrence

doi:10.1104/pp.37.6.774

Cited by 36 publications

(6 citation statements)

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“…After exhaustive extraction of the acidified buffer, sonme radioactivity still remained in the aqueous phase (table II). The presence of neutral bound gilbberellins has been reported by a nutmber of authors (3,10,13,18). Evidence was presented that acidic gibberellins could be recovered from such complexes by treatment with glycolytic (13) and proteolytic (10) enzymes as well as by acid hydrolysis (18).…”

Section: Resultsmentioning

confidence: 91%

Preparation of Radioactive Gibberellin A₁ and its Metabolism in Dwarf Peas

Kende

1967

Plant Physiol.

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Summary. G(iberellin A1-3,4-3H was prepared by selective catalytic reduction of gibberellic acid with a mixture of tritium and hydrogen. 3H-GA1 was applied at physiological concentrations to dwarf peas and the metabolism of the horimone was investigated. tH-GA1 was converted to an acidic, biologically active compound. Radioactive but biologically inactive compounds were also found in the neutral fraction and could not be converted to

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Section: Resultsmentioning

confidence: 91%

Preparation of Radioactive Gibberellin A₁ and its Metabolism in Dwarf Peas

Kende

1967

Plant Physiol.

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“…Such substances were especially found in immature and mature seeds and fruits, e.g. of Phaseolus and Pharbitis species, but also in potato tubers, shoot tips of tobacco, seeds and seedlings of tomato, tulip bulbs, and a number of other plant materials (18)(19)(20)(185)(186)(187)(188)(189)(190)(191)(192)(193)(194)(195). In contrast to the "typical" GAs, …”

Section: "Bound Gibberellins"mentioning

confidence: 93%

Gibberellins: Structure and Metabolism

Lang¹

1970

Annu. Rev. Plant. Physiol.

245

118

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“…Cold hardiness of shoots was determined as previously described Bixby 1975), Physiol, Plant, 45. 1979 of that used by Hayashi et al (1962) was followed. The extract was stirred overnight at 4°C and filtered in a Buchner funnel.…”

Section: Introductionmentioning

confidence: 99%

Free and Bound Gibberellin Activities and Ent‐kaurene Synthesis during Induction of Cold Hardiness in Black Locust Seedlings

Nowak

Brown

1979

Physiologia Plantarum

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The role of gibberellin in the development of cold hardiness in black locust (Robinia pseudoacacia L.) seedlings was investigated. Free and bound gibberellin activities were followed during induction of cold hardiness using ethyl acetate partitioning and pH variation, with subsequent paper chromatographic fractionation and gibberellin bioassay. While total gibberellin activity decreased during the induction of cold hardiness in black locust seedlings, no convincing evidence was found to support conversion of free gibberellin to a bound form. However, bound gibberellin activity did appear to be more stable than did free gibberellin activity during the final stages of cold hardening at freezing temperatures. Gibberellin synthesis was followed using 14C‐mevalonate conversion to ent‐kaurene in a cell‐free extract of the tissue. Ent‐kaurene synthesis decreased during cold hardening with no detectable synthesis in fully hardened seedlings. However, since growth cessation precedes development of cold hardiness, decreased gibberellin synthesis and corresponding trends in free and bound fractions might have been expected, and a cause and effect relationship is difficult to establish. Even so, a decline in one step in gibberellin synthesis and a greater stability of bound than free gibberelin activity are associated with induction of cold hardiness in black locust seedlings.

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Acid & neutral gibberellin-like substances in potato tubers

Cited by 36 publications

References 4 publications

Preparation of Radioactive Gibberellin A₁ and its Metabolism in Dwarf Peas

Preparation of Radioactive Gibberellin A₁ and its Metabolism in Dwarf Peas

Gibberellins: Structure and Metabolism

Free and Bound Gibberellin Activities and Ent‐kaurene Synthesis during Induction of Cold Hardiness in Black Locust Seedlings

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Acid & neutral gibberellin-like substances in potato tubers

Cited by 36 publications

References 4 publications

Preparation of Radioactive Gibberellin A1 and its Metabolism in Dwarf Peas

Preparation of Radioactive Gibberellin A1 and its Metabolism in Dwarf Peas

Gibberellins: Structure and Metabolism

Free and Bound Gibberellin Activities and Ent‐kaurene Synthesis during Induction of Cold Hardiness in Black Locust Seedlings

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Product

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Preparation of Radioactive Gibberellin A₁ and its Metabolism in Dwarf Peas

Preparation of Radioactive Gibberellin A₁ and its Metabolism in Dwarf Peas