Gibberellin as Sex Regulator in
            <i>Ricinus communis</i>

Shifriss, Oved

doi:10.1126/science.133.3470.2061

Cited by 36 publications

(12 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the contrary, PBZ shortened the internodes of rachises, scapes, and petioles in this species. Hence, endogenous GA evidently controls the internode length, as has been shown by Shifriss (1961) and many others. However, the other effects of exogenous GA are thought to differ among plant species.…”

Section: Discussionsupporting

confidence: 66%

“…These differences in sex expression may be due to the differences in the methods of GA application and to the physiological conditions of plants. Shifriss (1961) suggested a delay in anthesis, decrease in leaf size, and increase in internode elongation following GA treatment in many herbaceous plants. In this experiment, the first anthesis was not delayed and the leaf size was not decreased by the GA treatments in the three lines.…”

Section: Discussionmentioning

confidence: 99%

“…They generally promote maleness in species of Cucurbitaceae (Peterson and Anhder, 1960;Rudich et al, 1972;Prakash, 1977) and other families (Atal, 1959;Chailakhyan and Khryanin, 1978;Yin and Quinn, 1994). On the other hand, gibberellins promoted femaleness in Begonia × cheimantha (Heide, 1969), Ricinus communis (Shifriss, 1961), and Zea mays (Krishnamoorthy and Talukdar, 1976).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modification of Sex Expression in Sagittaria latifolia by the Application of Gibberellic Acid and Paclobutrazol

忠芳¹

2007

J. Japan. Soc. Hort. Sci.

View full text Add to dashboard Cite

A clear modification of sex expression in Sagittaria latifolia from male or trimonoecious to female was induced by a foliar spray of gibberellic acid (GA) at concentrations of 10, 100, and 1000 ppm. This modification began two weeks after the initiation of treatment. The effect was greater at a higher GA concentration. The number of racemes was increased by the treatment. On the other hand, male and perfect flowers were produced in the female line by a foliar spray of paclobutrazol (PBZ) at concentrations of 100 and 1000 ppm two weeks after the initiation of treatment, and a greater number of male flowers was produced in the trimonoecious line by the spray. The number of racemes was decreased by the PBZ application. GA was effective for the internode elongation of rachises and scapes; on the contrary, PBZ was effective in shortening the internodes. Therefore, it was clarified that endogenous GA controlled sex expression, raceme production, and internode length in this species. Female flowers in the male line developed into fruits with a normal seed; further, female flowers that had been pollinated with pollen grains from male flowers of the female line also developed into fruits with a normal seed. These results will be useful for the breeding of S. latifolia.

show abstract

Section: Discussionsupporting

confidence: 66%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modification of Sex Expression in Sagittaria latifolia by the Application of Gibberellic Acid and Paclobutrazol

忠芳¹

2007

J. Japan. Soc. Hort. Sci.

View full text Add to dashboard Cite

show abstract

“…This fits well into our concept of the role of auxin in sex determination and is in line with the assertion that the genetic factors which control the sex expression of cucumber exert their influence through the endogenous auxin level. This hypothesis can be broadened by determining the auxin content of sex types in species which have been reported to react differently to growth substances, as Ricinus comtmunis (21) and H1lumulus lupulus (23).…”

Section: Introductionmentioning

confidence: 99%

Determination of Relative Auxin Content in Hermaphrodite and Andromonoecious Cucumis sativus L.

1965

View full text Add to dashboard Cite

“…However, the similar treatment to the related wild tvve resulted in the induc--tion of multicarpel ovaries with no apparent effect on stamen development (Sawhney and Greyson 1973). Similarly, in a gynoecious line of Cucumis, GA, induced the development of male flowers (Peterson and Anhder 1960), whereas in Ricirzus it promoted the development of female flowers (Shifriss 1961). Thus, although the mechanisms by which GA, operates are not clearly understood at present, it appears that its effects on floral morphogenesis are dependent upon its interaction with gene products and by-products of the individual.…”

Section: Discussionmentioning

confidence: 99%

Abnormalities in pepper (Capsicum annuum) flowers induced by gibberellic acid

Sawhney¹

1981

Can. J. Bot.

View full text Add to dashboard Cite

Abnormalities in pepper (Capsicum annuurn) flowers induced by gibberellic acidV. K. SAWHNEY Del~clrr~rie~rr oJ'Biology , U~riuersity of S r r~k r r~c l~r i v n~~, S(rskoroo~~, Snsk., C[i~rtrtlrc S7N OW0 Received April 25, 1980 SAWHNEY, V. K. 1981. Abnormalities in pepper (Cupsicir/?l ~I I I I I I I I~?~) flowers induced by gibberellic acid. Can. J . Bot. 59:8-16. Young pepper plants treated with gibberellic acid (GA,) before the initiation of floral organs produced abnormalities in Rowers subsequently formed. The development of petals and stamens was affected by GA,, but sepals and the gynoeciunl were insensitive to the treatment. The effect on petals was on the unrolling of organs but stamen development was affected more dramatically. GA, caused abnormalities in pollen development and induced the carpelization of stamens. The expression of feminization of stamens ranged from the production of a few external ovules to a complete transformation of a stamen to a cal-pel with ovary, style, and stigma. In some instances, the growth of stamens was also inhibited. GA, also induced supernumerary organs in flowers; all of which were "carpel-like." These and other observations are discussed in relation to the hormonal status and the genetic make-up of plants. SAWHNEY, V. K. 1981. Abnormalities in pepper ( C N~S~C I O ? I f r t~t~~/ i / t ?~) flowers induced by gibberellic acid. Can. J . Bot. 59: 8-16. Les jeunes plantes de piment (Ctrpsiclcl?~ irtit~irio?~ L.) traitees a l'acide gibberellique (GA,) avant I'ebauche des organes floraux presentent des anormalites dans les fleurs qui se forment plus tard. L e developpement des petales et des etamines est affecte par le GA,, mais les sepales et le gynecee sont insensibles au traitement. L'effet chez les petales a trait a leur deroulement, mais le developpement des etamines est affecte plus fortement. Le GA, provoque des anormalites dans les developpement du pollen et induit la "carpellisation" des etamines. L'expression de ce dernier effet va de la production de quelques ovules externes jusqu'i la transformation complete d'une etamine en un carpelle comprenant ovaire, style et stigmate. Dans certains cas, la croissance des etamines est egalement inhibee. Le GA, provoque aussi, dans la fleur, la production d'organes surnumeraires ayant tous I'allure de carpelles. Ces observations et d'autres donnees sont discutees en rapport avec l'etat hormonal et la constitution genetique des plantes.[Traduit par le journal]

show abstract

Gibberellin as Sex Regulator in Ricinus communis

Abstract: Spraying monoecious inbreds with gibberellin A3 can markedly increase their female tendency. The effect of this substance upon sex appears to simulate the action of long days.

Cited by 36 publications

References 8 publications

Modification of Sex Expression in Sagittaria latifolia by the Application of Gibberellic Acid and Paclobutrazol

Modification of Sex Expression in Sagittaria latifolia by the Application of Gibberellic Acid and Paclobutrazol

Determination of Relative Auxin Content in Hermaphrodite and Andromonoecious Cucumis sativus L.

Abnormalities in pepper (Capsicum annuum) flowers induced by gibberellic acid

Contact Info

Product

Resources

About