Role of auxinic herbicide‐induced ethylene on hypocotyl elongation and root/hypocotyl radial expansion

Wei, Yang Dou; Zheng, Honggang; Hall, J Christopher

doi:10.1002/(sici)1526-4998(200005)56:5<377::aid-ps154>3.3.co;2-d

Cited by 7 publications

(8 citation statements)

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“…Stimulation of ethylene biosynthesis also plays a crucial role in auxin‐induced inhibition of plant growth. This was demonstrated in experiments using hormone‐related mutant and transgenic plants and by studies on the mode of action of auxin herbicides (Abeles et al 1992; Devine et al 1993; Klee and Lanahan 1995; Sterling and Hall 1997; Grossmann 1998; Hansen and Grossmann 2000; Wei et al 2000).…”

Section: Auxin‐induced Ethylene Biosynthesismentioning

confidence: 98%

“…However, in sensitive dicots, the growth‐retarding effects of auxin herbicides and IAA at high concentrations are not caused by phytotoxic cyanide (Grossmann 1998). Ethylene itself has been demonstrated to play the crucial part (Sterling and Hall 1997; Grossmann 1998; Hansen and Grossmann 2000; Wei et al 2000). In this context, close correlations were found between auxin‐induced ethylene synthesis, massive accumulation of ABA and inhibition of shoot and root growth in a variety of dicot species, including members of the Solanaceae, Umbelliferae, Fabaceae, Scrophulariaceae and Brassicaceae (Grossmann et al 1996; Hansen and Grossmann 2000).…”

Section: Auxin‐induced Inhibition Of Vegetative Growthmentioning

confidence: 99%

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Ethylene‐triggered abscisic acid: A principle in plant growth regulation?

Großmann¹,

Hansen²

2001

Physiologia Plantarum

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The application of auxins to sensitive plant species or their phenomenon in the normal plant growth regulation. Our own results and a reappraisal of the literature indicate that ethyl-overproduction in transgenic plants stimulates ethylene biosynthesis via induction of 1-aminocyclopropane-1-carboxylic acid ene-induced ABA may, indeed, play a role in natural physiological phenomena, such as root gravireaction and suppression (ACC) synthase. Recent studies with auxin herbicides and indole-3-acetic acid (IAA) have revealed that auxin-stimulated of lateral bud growth in apical dominance. In addition, it would be worthwhile to investigate whether ethylene-triggered ethylene triggers an increase in the biosynthesis of abscisic acid (ABA), which then functions as a second messenger,ABA is involved in other processes which coincide with a strong stimulation of ethylene biosynthesis, such as growth leading to growth inhibition and senescence. This raises the inhibition induced by cytokinins and senescence elicited under question of whether ethylene-triggered ABA is restricted to stress conditions. the action of auxin herbicides or whether it is a widespread

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Section: Auxin‐induced Ethylene Biosynthesismentioning

confidence: 98%

Section: Auxin‐induced Inhibition Of Vegetative Growthmentioning

confidence: 99%

Ethylene‐triggered abscisic acid: A principle in plant growth regulation?

Großmann¹,

Hansen²

2001

Physiologia Plantarum

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“…High concentrations of synthetic auxins can induce in the plant the synthesis of ethylene, responsible for senescence, thus producing symptoms characteristic of epinephosis, wilting, chlorosis and leaf fall, which are side effects that occur through the action of this hormone, but which has paper important in the death of susceptible plants (Braga et al, 1999;Wei et al, 2000). The already developed and mature leaves were less affected by the synthetic auxins, since they have few meristematic tissues, place of action of these herbicides (Vidal, 1997).…”

Section: Discussionmentioning

confidence: 99%

“…One of the fastest hormonal responses observed in plants is the induction of auxin growth. The growth response begins 10 minutes after the plant tissue has received auxin, resulting in growth rates that persist for several hours and, depending on the type of tissue or plant, can last for several days (Park, 1998;Wei et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

GROWTH ANALYSIS OF HYBRID Eucalyptus urograndis (E. grandis x E. urophylla) IN RESPONSE TO SIMULATED DRIFT OF AUXINIC HERBICIDES

et al. 2018

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The aim of this study was to evaluate growth rates of E. urograndis under application of triclopyr and fluroxipyr+triclopyr herbicides. Was used a randomized block design with four replications in a factorial design (3x2x5), corresponding to herbicides (triclopyr and fluroxipyr+triclopyr), both with two doses (0.75 and 1.5% concentrations of 480 g and L-1 for triclopyr and 80+240 g and L-1 for fluroxipyr+triclopyr), plus one control (plants that did not receive herbicide application) and five evaluation dates at 15, 30, 45, 60 and 75 days after application (DAA). At 45 days after seedlings transplant, applications were performed with pressurized carbon dioxide backpack sprayer, equipped with beak tip (XR 110.02) with spray volume of 200 L ha-1 and constant pressure of 35 kgf/cm2. Were evaluated: leaf area (LA), specific leaf area (SLA), leaf area ratio (LAR), leaf weight ratio (LWR), absolute growth ratio (AGR), relative growth ratio (RGR) and net assimilatory ratio (NAR). The drift of triclopyr and fluroxipyr + triclopyr herbicide in the hybrid E. urograndis affect plant development in the beginning of the establishment. At 75 days after simulation drift of herbicides the plants showed characteristics of the symptoms of intoxication. It’s necessary to perform studies after 75 DAA to verify the complete recovery of the intoxication symptoms of E. urograndis hybrid plants resulting from the herbicide drift in the present study.

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“…Because the mode of action of phenoxy herbicides mimics that of plant growth hormones, their application causes disturbances among a range of physiological processes [21]. 2,4-D inhibits root/hypocotyl elongation in Sinapis arvensis (wild mustard) and disrupts mesophyll cell structure in Pisum sativum (pea) [22,23]. There is increasing concern that 2,4-D has negative influence on water ecosystems, leading to cellular deformation of green algae, such as Ankistrodesmus falcatus [24]; malformations and behavioral changes to various fish, including Cyprinus carpio (common carp) and Danio rerio (zebrafish) [25,26]; abnormal cellular proliferation in amphibians such as Rhinella arenarum (species of toad) [27]; and the development of nonviable embryos in invertebrates, such as Biomphalaria glabrata (species of freshwater snail) [28].…”

Section: Phenoxy Herbicides: Potential Contaminants Of Soil and Watermentioning

confidence: 99%

Biological Remediation of Phenoxy Herbicide-Contaminated Environments

Urbaniak¹,

Mierzejewska²

2019

Environmental Chemistry and Recent Pollution Control Approaches

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Phenoxy herbicides such as 2,4-dichlorophenoxyacetic acid (2,4-D) and 2-methyl-4-chlorophenoxyacetic acid (MCPA) are widely used in agriculture to control broadleaf weeds. Although their application has helped to increase the yield and value of crops, they are also recognized as a source of emerging environmental contamination. Their extensive use may promote contamination of soil, surface, and groundwater and lead to increased inhibition of plant development and soil toxicity. Hence, there is an urgent need to identify nature-based methods based on appropriate biological remediation techniques, such as bio-, phyto-, and rhizoremediation, that enable the effective elimination of phenoxy herbicides from the environment. Bioremediation typically harnesses microorganisms and their ability to utilize recalcitrant contaminants in complete degradation processes, while phytoremediation is a cost-effective, environmentally friendly strategy that uses plants to transform or mineralize xenobiotics to less or nontoxic compounds. Rhizoremediation (microbe-assisted phytoremediation), in turn, is based on the interactions between plant roots, root exudates enriched in plant secondary metabolites, soil, and microorganisms. Based on the above, this chapter presents current knowledge on the properties of phenoxy herbicides, as well as the concentrations detected in the environment, their toxicity, and the biological remediation techniques used for safe removal of the compounds of interest from the environment.

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Role of auxinic herbicide‐induced ethylene on hypocotyl elongation and root/hypocotyl radial expansion

Cited by 7 publications

References 0 publications

Ethylene‐triggered abscisic acid: A principle in plant growth regulation?

Ethylene‐triggered abscisic acid: A principle in plant growth regulation?

GROWTH ANALYSIS OF HYBRID Eucalyptus urograndis (E. grandis x E. urophylla) IN RESPONSE TO SIMULATED DRIFT OF AUXINIC HERBICIDES

Biological Remediation of Phenoxy Herbicide-Contaminated Environments

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