Tolerance of Hymenaea courbaril L. to glyphosate

Faria, Giselle Santos de; Carlos, Leandro; Jakelaitis, Adriano; Filho, Sebastião Carvalho Vasconcelos; Lourenço, Lucas Loram; Costa, Andréia Mendes da; Gonçalves, Izadora Andrade

doi:10.1007/s10646-021-02499-y

Cited by 3 publications

(1 citation statement)

References 57 publications

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“…Glyphosate can present different responses in relation to morphological characteristics, being bene cial or inhibiting [42,43]. In the case of H. stigonocarpa, glyphosate promoted stem thickening the diameter, which in turn is one of the characteristics whose analysis enables indicating the ability of a seedling to survive in the eld and should be used as one of the best indicators of seedling quality and consequently survival in the eld [44,45].…”

Section: Discussionmentioning

confidence: 99%

Tolerance of Hymenaea stigonocarpa Mart. ex Hayne. to glyphosate

Faria

Carlos

Jakelaitis

et al. 2022

Preprint

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The objective of this work was to evaluate the glyphosate herbicide effect on Hymenaea stigonocarpa Mart. ex Hayne seedlings. A randomized block design with 5 replicates was used with an experimental unit composed of one H. stigonocarpa plant in 5L pots. The treatments were: 0 (control); 9.6; 240; 480; 960 g a. ha− 1 of glyphosate. Evaluations were performed 24 hours and 60 days after application. Gas exchange, respiration, photosynthesis, visual, anatomical and histochemical evaluations were carried out with leaves from the middle third being collected, and the growth in relation to the two dates was measured and recorded. The growth analysis showed that the seedlings showed an increase in stem diameter, a decrease in leaf number and an increase in height. There were increases in photosynthetic, electron transport and transpiratory rates, and in the effective yield of photosystem II one day after the glyphosate application. The plants then showed a reduction in transpiratory rate and a reduction in Fv/Fm at 60 days after application. With these studies we can conclude that the Hymenaea stigonocarpa species is able to survive after contact with the glyphosate herbicide, with no visual and/or anatomical damage, along with positive increases in growth and physiological characteristics.

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Section: Discussionmentioning

confidence: 99%

Tolerance of Hymenaea stigonocarpa Mart. ex Hayne. to glyphosate

Faria

Carlos

Jakelaitis

et al. 2022

Preprint

Self Cite

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Metabolism of guarana (Paullinia cupana Kunth var. sorbilis) plants and fruit production subjected to glyphosate doses

Santos

Filho

Schimpl

et al. 2023

Journal of Environmental Science and Health, Part B

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Tolerance of Hymenaea stigonocarpa mart. Ex Hayne. To glyphosate

Faria,

Carlos,

Vasconcelos-Filho

et al. 2024

Braz. J. Biol.

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Hymenaea stigonocarpa Mart. ex Hayne has leaves with adaxial and abaxial epidermis covered by a very thick cuticle, in addition to anatomical structures involved in reducing the amount of herbicide absorbed by plants. Thus, we tested the hypothesis that H. stigonocarpa is potentially resistant to the herbicide glyphosate, exposing the plants to different doses (0, 96, 240, 480, and 960 g a.e ha-1). We carried out assessments of the symptoms, anatomy, growth and physiology of the plants and found that exposure to glyphosate negatively affected the height and number of leaves of the plants. Leaf fall resulted in a reduction in the photosynthetic capacity of plants, which responded by investing in stem diameter. Despite this, no visual symptoms of glyphosate toxicity were observed at the concentrations evaluated and histochemical tests did not detect signs of oxidative stress in the leaves, nor starch accumulation, indicating that carbohydrate translocation was not impaired. These results confirm our hypothesis of tolerance of H. stigonocarpa to glyphosate. Furthermore, plants exposed to the lowest doses of glyphosate (96 and 240 g ha-1) showed good growth, photosynthesis, transpiration and photochemical potential responses, indicating a hormetic effect in this application range.

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Tolerance of Hymenaea courbaril L. to glyphosate

Cited by 3 publications

References 57 publications

Tolerance of Hymenaea stigonocarpa Mart. ex Hayne. to glyphosate

Tolerance of Hymenaea stigonocarpa Mart. ex Hayne. to glyphosate

Metabolism of guarana (Paullinia cupana Kunth var. sorbilis) plants and fruit production subjected to glyphosate doses

Tolerance of Hymenaea stigonocarpa mart. Ex Hayne. To glyphosate

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