The influence of plant growth regulators on root and shoot growth of containerized trees following root removal

Percival, Glynn C.; Gerritsen, J. D.

doi:10.1080/14620316.1998.11510985

Cited by 11 publications

(9 citation statements)

References 12 publications

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“…It is assumed that the signal transduction pathway for IBA in the rooting process is at least partially different from that of IAA (Mu¨ller 2000;Wang et al 2003). On the other hand NAA, in comparison with our results (Figure 1), inhibited root formation in various plant material (Percival and Gerritsen 1998).…”

Section: Resultsmentioning

confidence: 67%

“…Several natural and synthetic plant growth regulators have been tested for their rhizogenic activity (Smith and Thorpe 1975;Wightman and Thimann 1980;Blakely et al 1988;Lloret and Pulgarı´n 1992;Balestri and Bertini 2003;Casimiro et al 2003;Wang et al 2003). IAA, IBA, and NAA are responsible for rhizogenesis in various plant materials (Eliasson 1980;Jarvis 1988;Blakesley 1994;Percival and Gerritsen 1998;Mu¨ller 2000;Wang et al 2003). Besides auxins and ethylene (Mullins 1972;Coleman et al 1980;Riov and Yang 1989;Biondi et al 1990;Liu and Reid 1992), saccharides are the most important factors of root initiation and growth, since they are not only energy sources, but they are important also for constructing structural components of plant cells and cell walls (Jarvis 1986).…”

Section: Introductionmentioning

confidence: 97%

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Effect of auxins and plant oligosaccharides on root formation and elongation growth of mung bean hypocotyls

2005

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The interaction of auxins -IAA, IBA or NAA -with galactoglucomannan oligosaccharides (GGMOs) on adventitious root formation and elongation growth of mung bean hypocotyl cuttings was studied. GGMOs induced adventitious roots in the absence of auxins; however, their effect was lower compared with IBA or NAA. On the other hand, in the presence of auxins, GGMOs inhibited adventitious root induction. Their effect depended on the concentration of oligosaccharides and the type of auxin used. The highest inhibition effect of GGMOs at a concentration of 10 À8 M in the presence of IBA and NAA was observed. In the presence of IAA their inhibition was non-significant in regard to the concentration. The interaction of auxins with GGMOs resulted in the formation of adventitious roots on a shorter part of hypocotyls compared with the effect of auxins alone. However, roots were induced more extensively along the hypocotyls treated with GGMOs compared with the control. GGMOs inhibited the length of induced adventitious roots in the presence of IAA, while in combination with IBA or NAA they were ineffective. The elongation of hypocotyls induced by IAA or IBA was inhibited by GGMOs, too. However, in the presence of NAA or by endogenous growth they were without any significant effect on elongation growth. These findings suggest that GGMOs in certain concentrations might inhibit rooting and the elongation process dependant on auxin used.Abbreviations: 2,4-D -2,4-dichlorophenoxyacetic acid; GA 3 -gibberellic acid; GGMOs -galactoglucomannan oligosaccharides; GGM -galactoglucomannan; IAA -indole-3-acetic acid; IBA -indole-3-butyric acid; NAA -1-naphthaleneacetic acid

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Section: Resultsmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 97%

Effect of auxins and plant oligosaccharides on root formation and elongation growth of mung bean hypocotyls

2005

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“…posttransplant growth of the plants. Percival and Gerritsen (1998) showed that auxin applications increased the root growth of several tree species after removal of half of the root system. However, both Percival and Gerritsen (1998) and van Iersel (1998) reported that high concentrations of auxins can be phytotoxic and cause plant death.…”

mentioning

confidence: 99%

“…Percival and Gerritsen (1998) showed that auxin applications increased the root growth of several tree species after removal of half of the root system. However, both Percival and Gerritsen (1998) and van Iersel (1998) reported that high concentrations of auxins can be phytotoxic and cause plant death. In addition, Percival and Gerritsen (1998) showed that the reaction of trees to auxin drenches is species-dependent.…”

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confidence: 99%

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Auxin Applications Affect Posttransplant CO2 Exchange Rate and Growth of Bare-rooted Vinca [Catharanthus roseus (L.) G. Don] Seedlings

Iersel¹

1999

jashs

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Uprooting and transplanting seedlings can cause root damage, which may reduce water and nutrient uptake. Initiation of new roots and rapid elongation of existing roots may help minimize the negative effects of transplant shock. In this study, seedlings with four true leaves were transplanted into diatomaceous earth and the plants were transferred to a growth chamber, where they were treated with NAA (0, 0.025, 0.25, and 2.5 mg·L-1; 36 mL/plant). The effects of drenches with various amounts of 1-naphthaleneacetic acid (NAA) on the posttransplant CO2 exchange rate of vinca [Catharanthus roseus (L.) G. Don] were quantified. Whole-plant CO2 exchange rate of the plants was measured once every 20 minutes for a 28 day period. Seedlings treated with 0.025 or 0.25 mg·L-1 recovered from transplant shock more quickly than plants in the 0 and 2.5 mg·L-1 treatments. Naphthaleneacetic acid drenches containing 0.025 or 0.25 mg·L-1 increased whole-plant net photosynthesis (Pnet) from 10 days, dark respiration (Rdark) from 12 days, and carbon use efficiency (CUE) from 11 days after transplanting until the end of the experiment. The increase in CUE seems to have been the result of the larger size of the plants in these two treatments, and thus an indirect effect of the NAA applications. These differences in CO2 metabolism among the treatments resulted in a 46% dry mass increase in the 0.025 mg·L-1 treatment compared to the control, but shoot-root ratio was not affected. The highest rate of NAA (2.5 mg·L-1) was slightly phytotoxic and reduced the growth rate of the plants.

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Applications of Chlorophyll Fluorescence in Forestry and Ecophysiology

Mohammed¹,

Zarco‐Tejada

Miller

2003

Practical Applications of Chlorophyll Fluorescence in Plant Biology

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The influence of plant growth regulators on root and shoot growth of containerized trees following root removal

Cited by 11 publications

References 12 publications

Effect of auxins and plant oligosaccharides on root formation and elongation growth of mung bean hypocotyls

Effect of auxins and plant oligosaccharides on root formation and elongation growth of mung bean hypocotyls

Auxin Applications Affect Posttransplant CO2 Exchange Rate and Growth of Bare-rooted Vinca [Catharanthus roseus (L.) G. Don] Seedlings

Applications of Chlorophyll Fluorescence in Forestry and Ecophysiology

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