Rooting of Cuttings of Acer Rubrum l. And Eucalyptus Camaldulensis Dehn.

Bachelard, E. P.; Stowe, BB

doi:10.1071/bi9630751

Cited by 34 publications

(12 citation statements)

References 25 publications

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“…GA3 has been reported to reduce root growth in tomato (31,33) and several other species (2,3,31 GA3 promoted elongation of the wild type in a log-linear fashion until, at the highest level tested, 10 ,ug/ml, growth of the normal was almost as great as that of the yg,,. GA3 promoted elongation only slightly in the mutant.…”

Section: Resultsmentioning

confidence: 99%

Physiology of the Yellow-Green 6 Gene in Tomato

Perez¹,

Marsh²,

Lachman³

1974

Plant Physiol.

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The yellow-green 6 (ygf) mutation in tomato (Lycopersicon esculentum Mill.) is controlled by a single recessive gene with pleiotropic effects. The syndrome of characters associated with the mutation are enhanced stem elongation, reduced chlorophyll content and absence of deteetable anthocyanins. We now have shown that the mutant also has fewer lateral roots than the wild type and higher L-phenylalanine ammonia-lyase (E.C. 4.3.1.5) activity than the normal tomato. These traits of the mutant closely resemble those induced in many plants by the application of gibberellic acid which suggests that the phenotypic expressions of the mutation might in some manner be related to the endogenous level or activity of the gibberellins. In support of this premise, data are presented which show that the characters of the mutant can be induced in the wild type tomato by application of gibberellic acid. Conversely, several traits of the wild type can be induced in the mutant by an inhibitor of gibberellin biosynthesis, Phosfon. In addition, an embryoless barley half-seed bioassay for the gibberellins and gas-liquid chromatography indicated that the mutant contained at least three times as much total gibberellin as the wild type plant.A particular phenotype may be determined by a single gene through the control of a single chemical reaction as was demonstrated in lower organisms (15) and in higher plants (26).For example, in the latter, five mutant genes in Zea mays were suggested as being responsible for the dwarf habit of growth through the control of the amount of native gibberellins (26). These nonallelic mutant genes apparently control different steps in the biosynthesis of the gibberellins and thereby lead to a reduced amount of these substances, resulting in one observable phenotypic effect-dwarfed plants.Since hormones typically affect many facets of plant growth, it seems probable that an alteration of the level or efficacy of any natural hormone, such as the gibberellins, could affect not only one phenotypic trait, but could give rise to a whole syndrome of pleiotropic characteristics (5).

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Section: Resultsmentioning

confidence: 99%

Physiology of the Yellow-Green 6 Gene in Tomato

Perez¹,

Marsh²,

Lachman³

1974

Plant Physiol.

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“…Cuttings were made from seedlings 4-5 weeks old (c. 6-7 cm tall) by severing them immediately above the cotyledons. The cuttings were supported directly in the solutions under test in the manner described previously (Bachelard and Stowe 1963). They were placed in either the 16-hr-day room described above or under continuous light (intensity c. 800 f.c.)…”

Section: Methodsmentioning

confidence: 99%

“…Gibberellic acid inhibits rooting of cuttings, including those of red maple (Bachelard and Stowe 1963), and Furuya and Thimann (1964) have recently shown that anthocyanin synthesis in two species of Spirodela is inhibited by gibberellic acid, which in one of the species is active at extremely low concentrations. It was, therefore, of interest to study the effect of gibberellic acid on anthocyanin formation in the leaves of red maple cuttings.…”

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confidence: 99%

The Interrelations Between Root Formation and Anthocyanin Synthesis in Red Maple Cuttings: Effects of Gibberellic Acid, Ccc, and 8-Azaguanine

Bachelard¹

1965

Aust. Jnl. Of Bio. Sci.

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A relationship between anthocyanin content and root formation in red maple cuttings has been described earlier (Bachelard and Stowe 1962, 1963). Gibberellic acid inhibits rooting of cuttings, including those of red maple (Bachelard and Stowe 1963), and Furuya and Thimann (1964) have recently shown that anthocyanin synthesis in two species of Spirodela is inhibited by gibberellic acid, which in one of the species is active at extremely low concentrations. It was, therefore, of interest to study the effect of gibberellic acid on anthocyanin formation in the leaves of red maple cuttings.

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“…The excised internode can be studied as ia clo,sed system tusing only endogenotis stubstrates; comipeti,tion, therefore, might be expected between catabolic and anabolic pathways fo,r ciommon intermediates. Several workers, however, have reporited positive co,rrelationls between the number of adventitioutis ro.ots fo,rmed in hyp,oco!tyls and antthocyaninl biosyntheses (1,2,3). Other factors controlling adventitious rooit formation have been recently reviewed (4,8,20).…”

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confidence: 99%

Relationships Between the Development of Adventitious Roots and the Biosynthesis of Anthocyanins in First Internodes of Sorghum

Stafford

1968

Plant Physiol.

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Abstract. The initiation and subsequent growth of adventitious roots in excised first internodes of Sorghum vulgare var. Wheatland milo were studied to determine the effect of these processes on anthocyanin biosyntheses. Segmentation of the internodes inhibited both adventitious root growth and accumulation of cyanidin equally in all segments; these results can be interpreted as a common requirement for bidirectional longitudinal transport. The presence of the coleoptile, especially in the absence of the base of the internode, inhibited the growth of the roots, but increased the number of root initials. High intensities of white and blue light which induced cyanidin synthesis slightly decreased adventitious root growth. Anaerobic conditions produced by solution infiltration strongly inhibited the growth of adventitious roots and greatly increased the accumulation of apigeninidin and luteolinidin. Addition of indoleacetic acid, kinetin and cofactors such as pyridoxine produced effects on the initiation and subsequent growth of these roots similar to those effects reported in the literature. But unlike root formation in hypocotyls, the initiation of adventitious roots in Sorghum internodes was not always directly correlated with the accumulation of anthocvanins. and the subsequent growth of these roots was frequently inversely correlated with some of the anthocyanin biosyntheses. The possible nature of these correlations is discussed. Comparisons are made with related Sorghum lines and mutants.In studying anwthocyaniin biosyntheslis in excised first internodes lof Sorghuiii, other biosynthetic processes appeared to compete for common intermedia,tes o,r isites of synthesis, or else oIne process was produicing an inhiibito,r to the oither. Lignin b,iosynthesis was not one of the competitors ('19), but visuial estimation of the growth of adventitious rooits iincdicated an -inverse rel,ation with the accIumulation of anthocyanlins.In order to understand the niatuire o,f this competition or inhibition, factors controlling the ini,tiation and subsequent elongabion of adventitious roolts in ithe fi,rs!t internode (mesocotyl) of Sorghuin were examinled. The excised internode can be studied as ia clo,sed system tusing only endogenotis stubstrates; comipeti,tion, therefore, might be expected between catabolic and anabolic pathways fo,r ciommon intermediates. Several (4,5,13,(16)(17)(18)(19).

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Rooting of Cuttings of Acer Rubrum l. And Eucalyptus Camaldulensis Dehn.

Cited by 34 publications

References 25 publications

Physiology of the Yellow-Green 6 Gene in Tomato

Physiology of the Yellow-Green 6 Gene in Tomato

The Interrelations Between Root Formation and Anthocyanin Synthesis in Red Maple Cuttings: Effects of Gibberellic Acid, Ccc, and 8-Azaguanine

Relationships Between the Development of Adventitious Roots and the Biosynthesis of Anthocyanins in First Internodes of Sorghum

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