Effects of gibberellins on important agronomic traits of horticultural plants

Zhang, Xiaojia; Zhao, Baolin; Sun, Yibo; Feng, Yi

doi:10.3389/fpls.2022.978223

Cited by 5 publications

(6 citation statements)

References 112 publications

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“…Changes in GA biosynthesis and signaling pathways not only regulate plant height but also influence environmental and biotic stress tolerance, 78,79 floral organ development, 80 and quality traits. 81 In the breeding context, the diverse roles of GA can be a double-edged sword. On the one hand, dwarf germplasm with unfavorable pleiotropy due to GA deficiency or overdose may limit breeding applications.…”

Section: Discussionmentioning

confidence: 99%

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Important Factors Controlling Gibberellin Homeostasis in Plant Height Regulation

Zhou,

Li,

Cheng

et al. 2023

J. Agric. Food Chem.

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Plant height is an important agronomic trait that is closely associated with crop yield and quality. Gibberellins (GAs), a class of highly efficient plant growth regulators, play key roles in regulating plant height. Increasing reports indicate that transcriptional regulation is a major point of regulation of the GA pathways. Although substantial knowledge has been gained regarding GA biosynthetic and signaling pathways, important factors contributing to the regulatory mechanisms homeostatically controlling GA levels remain to be elucidated. Here, we provide an overview of current knowledge regarding the regulatory network involving transcription factors, noncoding RNAs, and histone modifications involved in GA pathways. We also discuss the mechanisms of interaction between GAs and other hormones in plant height development. Finally, future directions for applying knowledge of the GA hormone in crop breeding are described.

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Section: Discussionmentioning

confidence: 99%

“…Changes in GA biosynthesis and signaling pathways not only regulate plant height but also influence environmental and biotic stress tolerance, , floral organ development, and quality traits . In the breeding context, the diverse roles of GA can be a double-edged sword.…”

Section: Discussionmentioning

confidence: 99%

Important Factors Controlling Gibberellin Homeostasis in Plant Height Regulation

Zhou,

Li,

Cheng

et al. 2023

J. Agric. Food Chem.

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“…GA3 brings many benefits to plant growth, such as increasing the elongation of stems and segments, producing seed germination, and promoting enzyme production during germination and involvement in fruit settings [9,15]. In vegetable production, gibberellins have improved crop uniformity, germination, ease of harvesting and storage [16][17][18]. In contrast, the PBZ effect consists of chemical antagonists to GA3.…”

Section: Introductionmentioning

confidence: 99%

Growth Responses of Okra (Abelmoschus esculentus L. Moench) to Selected Plant Growth Regulators

F. Abdullah,

M. F. Zamzuri,

S.R. Syd Kamaruzaman

et al. 2024

ASET

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This study was conducted to evaluate the effects of two types of plant growth regulators (PGRs) which are gibberellins (GA3) and Paclobutrazol (PBZ) on the growth and photosynthetic pigment (chlorophyll) of Okra (Abelmoschus esculentus L. Moench) plants. Exogenous applications of GA3 and PBZ with different concentrations (i.e. 20, 40, 80 and 100 mg/L) were sprayed on two-week-old Okra plants under the nursery stage. The control plants were only treated with distilled water. The stem diameter (mm) of treated and control plants was measured weekly. At the end of the experimental period, data on growth characteristics such as plant height (cm), leaf area (cm2) and number of leaves were recorded. The estimation of chlorophyll was measured using the SPAD-502 Chlorophyll Meter. Results showed that the plant morphological characteristics of Okra plants were significantly affected by the application of GA3 and PBZ (P<0.0001). In addition, stem growth (expressed as stem cross-sectional area- mm2) of Okra plants was significantly increased with increasing GA3 concentrations. In contrast, applying PBZ reduced Okra plants' stem growth. This study highlighted the major effects of GA3 and PBZ on the growth of Okra plants when planted under tropical climate conditions.

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“…They are produced at one location and transported to another for their influence; however, some of them have the same site of synthesis and effect [3]. Although both auxins and GAs can stimulate parthenocarpic fruit formation, there are still some differences in the development process of the parthenocarpic fruits [4].…”

Section: Introductionmentioning

confidence: 99%

Impact of Auxin and Gibberellin on Vegetable Crops: A Review

Faruk,

Kumar,

Arya

et al. 2023

IJECC

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Plant growth regulators, also known as phytohormones, are a class of organic chemicals, either naturally occurring or artificially synthesised, that exert control over specific physiological processes in plants. The application of these substances elicits a range of effects on vegetables, encompassing seed germination, the disruption of seed dormancy, the commencement of flowering, the induction of gametocidal effects, the promotion of fruit set, the stimulation of parthenocarpy, and the facilitation of fruit ripening, among others. Auxin plays crucial factor in the development of several vegetable crops, including cucurbits. Notably, the application of Naphthalene acetic acid at a concentration of 10 ppm has been observed to exert a significant influence on sex expression, fruit set, and overall production in cucumber plants. The application of 4-CPA resulted in the greatest quantity of commercially viable fruit in tomato plants. The application of Naphthalene acetic acid at a concentration of 40 ppm exhibited the most substantial enhancements in leaf area, percentage of fruit set, total fruit production, as well as the quantity and weight of seeds per fruit in chilli plants. The treatment involving the application of 80 ppm Naphthalene acetic acid in brinjal resulted in the observation of increased fruit length, average weight of fruit per plant, and greatest fruit diameter. Gibberellin is also of significant importance, since it participates in using the gibberellic acid route to produce tomato plants that exhibit enhanced performance in both irrigated and water-limited environments, hence increasing their drought tolerance. The application of GA3 at a concentration of 75 ppm has been found to be highly beneficial in improving vegetative growth and yield characteristics in brinjal, as well as in several other vegetable crops as detailed in the present study. Additionally, they serve a crucial function in augmenting the output and productivity of many vegetables breeding programmes, and ensuring food safety.

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Effects of gibberellins on important agronomic traits of horticultural plants

Cited by 5 publications

References 112 publications

Important Factors Controlling Gibberellin Homeostasis in Plant Height Regulation

Important Factors Controlling Gibberellin Homeostasis in Plant Height Regulation

Growth Responses of Okra (Abelmoschus esculentus L. Moench) to Selected Plant Growth Regulators

Impact of Auxin and Gibberellin on Vegetable Crops: A Review

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