EFFECT OF GIBBERELLIN ON GROWTH AND DEVELOPMENT OF Spondias tuberosa SEEDLINGS

Matos, Fábio Santos; Freitas, Igor Alberto Silvestre; Pereira, Victor Luiz Gonçalves; Pires, Winy Kelly Lima

doi:10.1590/1983-21252020v33n427rc

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…The application of GA 3 promotes the expression of genes related to cell elongation, expansion, and division in tomato [4]. GA 3 application significantly promoted the elongation of the root, stem, and leaf cells of Spondias tuberosa plants [41]. Eriksson et al [42] indicated that elevated GA levels increase the number of internode cells in poplar (Populus) trees but do not affect the length of epidermal cells or pith cells.…”

Section: Discussionmentioning

confidence: 99%

Study on the Regulatory Effects of GA3 on Soybean Internode Elongation

Shan

Jin

Wang

et al. 2021

Plants

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Excessive plant height is an important factor that can lead to lodging, which is closely related to soybean yield. Gibberellins are widely used as plant growth regulators in agricultural production. Gibberellic acid (GA3), one of the most effective active gibberellins, has been used to regulate plant height and increase yields. The mechanism through which GA3 regulates internode elongation has been extensively investigated. In 2019 and 2020, we applied GA3 to the stems, leaves, and roots of two soybean cultivars, Heinong 48 (a high-stalk cultivar) and Henong 60 (a dwarf cultivar), and GA3 was also applied to plants whose apical meristem was removed or to girded plants to compare the internode length and stem GA3 content of soybean plants under different treatments. These results suggested that the application of GA3 to the stems, leaves, and roots of soybean increased the internode length and GA3 content in the stems. Application of GA3 decreased the proportion of the pith in the soybean stems and primary xylem while increasing the proportion of secondary xylem. The apical meristem is an important site of GA3 synthesis in soybean stems and is involved in the regulation of stem elongation. GA3 was shown to be transported acropetally through the xylem and laterally between the xylem and phloem in soybean stems. We conclude that the GA3 level in stems is an important factor affecting internode elongation.

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Section: Discussionmentioning

confidence: 99%

Study on the Regulatory Effects of GA3 on Soybean Internode Elongation

Shan

Jin

Wang

et al. 2021

Plants

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“…The application of exogenous GA3 significantly promoted the elongation of the root, stem, and leaf cells [ 43 ], enhanced expression of cell elongation genes [ 44 ], promoted GA biosynthesis [ 45 ], and shortened germination time [ 46 ] and the time to flowering [ 47 , 48 ] in various plants, including wheat. We proposed that GA-producing Bacillus sp.…”

Section: Introductionmentioning

confidence: 99%

Plant Development of Early-Maturing Spring Wheat (Triticum aestivum L.) under Inoculation with Bacillus sp. V2026

Mirskaya

Khomyakov

Rushina

et al. 2022

Plants

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The effect of a plant growth-promoting bacterium (PGPB) Bacillus sp. V2026, a producer of indolyl-3-acetic acid (IAA) and gibberellic acid (GA), on the ontogenesis and productivity of four genotypes of early-maturing spring wheat was studied under controlled conditions. The inoculation of wheat plants with Bacillus sp. V2026 increased the levels of endogenous IAA and GA in wheat of all genotypes and the level of trans-Zeatin in Sonora 64 and Leningradskaya rannyaya cvs but decreased it in AFI177 and AFI91 ultra-early lines. Interactions between the factors “genotype” and “inoculation” were significant for IAA, GA, and trans-Zeatin concentrations in wheat shoots and roots. The inoculation increased the levels of chlorophylls and carotenoids and reduced lipid peroxidation in leaves of all genotypes. The inoculation resulted in a significant increase in grain yield (by 33–62%), a reduction in the time for passing the stages of ontogenesis (by 2–3 days), and an increase in the content of macro- and microelements and protein in the grain. Early-maturing wheat genotypes showed a different response to inoculation with the bacterium Bacillus sp. V2026. Cv. Leningradskaya rannyaya was most responsive to inoculation with Bacillus sp. V2026.

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Biometry in Umbu fruits from the semi-arid region of Paraiba

Pereira

Pessoa

et al. 2021

Rev. Bras. Frutic.

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Umbu fruits from four municipalities of Paraíba were morphologically characterized in order to identify promising genotypes for fresh consumption and agro-industrial use. We used 400 fruits from parent plants located in São Vicente do Seridó, Queimadas, Boqueirão, and Cabaceiras and 40 commercial fruits from two open fairs in Campina Grande, PB. The experimental unit consisted of ten fruits. The fruits were analyzed for total mass (MTF), length (LC), diameter (DF), fresh matter (MMF), yield (RF), and presence of hairs. In the endocarps, mass (ME), length (CE), diameter (DE), and width (LE) were the evaluated parameters. A completely randomized design was adopted, the data were subjected to variance analysis, and the means were compared by the Tukey test and principal component analysis. The fruits from Queimadas and São Vicente do Seridó showed the best morphological characters with regard to mass, length, diameter, fresh matter, and fruit yield, and were the most promising for agro-industrial commercialization. The fruits from Boqueirão showed the highest endocarp mass. Most fruits showed hairs on the peel, except the commercial ones. Four groups of municipalities were formed, with the fruits from Queimadas showing the largest size, while the fruits from São Vicente de Seridó and Soledade showed the highest yield.

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EFFECT OF GIBBERELLIN ON GROWTH AND DEVELOPMENT OF Spondias tuberosa SEEDLINGS

Cited by 5 publications

References 11 publications

Study on the Regulatory Effects of GA3 on Soybean Internode Elongation

Study on the Regulatory Effects of GA3 on Soybean Internode Elongation

Plant Development of Early-Maturing Spring Wheat (Triticum aestivum L.) under Inoculation with Bacillus sp. V2026

Biometry in Umbu fruits from the semi-arid region of Paraiba

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