Estrogen-like substances in dormant and cold-treated hyacinth bulbs (Hyacinthus orientalis L.)

Kopcewicz, Jan; Saniewski, M.; Rudnicki, Ryszard

doi:10.1007/bf01946788

Cited by 5 publications

(3 citation statements)

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“…In young seedlings there was no estrone; when flowers appeared, the content of estrone increased greatly. Similar results have also been obtained in other experiments (Kopcewicz 1972a, b;Kopcewicz and Chrominski 1972;Kopcewicz et al 1973). …”

Section: Discussionsupporting

confidence: 80%

“…, 1979Zhou and Tsao 1982;Wang and Tsao 1986;Simons and Grinwich 1989). Significant increases of endogenous estrogens have also been observed during plant reproduction (Kopcewicz 1971(Kopcewicz , 1972aKopcewicz and Chrominski 1972;Kopcewicz et al 1973;Zhou and Tsao 1982). Methods of identification and determination have ranged from relatively primitive ones like the bioassay and color reaction in early years to very sensitive methods like the GC-MS and RIA in late 1970s and 1980s.…”

Section: Introductionmentioning

confidence: 91%

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The occurrence of estrogens in relation to reproductive processes in flowering plants

Zhang

Yang

Tsao

1991

Sexual Plant Reprod

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Estrogens, a group of steroidal sex hormones, were determined in pollen, styles or whole pistils using a highly sensitive and specific radioimmunoassay (RIA) and found to be present at levels between 10-11 and 10-lo g/g FW. In the style of Lilium davidii Duch., the levels of total estrogen decreased after self-pollination of the open flower. After bud pollination, which partly overcame incompatibility, the levels of both estradiol and total estrogen increased. The levels of estradiol and total estrogen in the pistils of Brassica pekinensis Rupr. increased after compatible pollination during the first 3 days following pollination and decreased thereafter when the data were expressed on a FW basis. These results suggest that estrogens are to some extent associated with the reproductive processes.

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Section: Discussionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 91%

The occurrence of estrogens in relation to reproductive processes in flowering plants

Zhang

Yang

Tsao

1991

Sexual Plant Reprod

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“…A link between endogenous oestrogen production and flowering in plants with differing photoperiodic or environmental requirements has been claimed: maximal levels of of putative oestrogens were found during flowering in the day neutral plant Phaseolus vulgaris (Kopcewicz, 1971b), the short-day plants Perilla ocimoides and Chenopodium rubrum (Kopcewicz, 1972c), the long-day plants Hyoscyamus niger and Salvia splendens (Kopcewicz, 1972) and the cold-requiring plant Hyacinthus orientalis (Kopcewicz, Saniewski and Rudnicki, 1973). The presumed oestrogens were not identified fully and the number of separable compounds in the phenolic fraction varied from species to species.…”

Section: Floweringmentioning

confidence: 99%