Kinetic Processes of Acute Atrazine Toxicity to Brachydanio rerio in the Presence and Absence of Suspended Sediments

Yan, Hao; Huang, Suiliang; Scholz, Miklas

doi:10.1007/s11270-015-2296-7

Cited by 11 publications

(5 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The LC 50 value of berberine to B. rerio 96 h after the treatment was 126.38 mg L –1 , which revealed that berberine was low toxic to B. rerio (Table ). As a contrast, the 96 h LC 50 of commercially used herbicide atrazine to B. rerio is 29.06 mg L –1 …”

Section: Resultsmentioning

confidence: 87%

See 1 more Smart Citation

Herbicidal Spectrum, Absorption and Transportation, and Physiological Effect on Bidens pilosa of the Natural Alkaloid Berberine

Liu

et al. 2017

J. Agric. Food Chem.

View full text Add to dashboard Cite

Berberine is a natural herbicidal alkaloid from Coptis chinensis Franch. Here we characterized its herbicidal spectrum and absorption and transportation in the plant, along with the possible mechanism. Berberine showed no effect on the germination of the 10 tested plants. The IC values of berberine on the primary root length and fresh weight of the 10 tested plants ranged from 2.91 to 9.79 mg L and 5.76 to 35.07 mg L, respectively. Berberine showed a similar herbicidal effect on Bidens pilosa as the commercial naturally derived herbicide cinmethylin. HPLC and fluorescence analysis revealed that berberine was mainly absorbed by B. pilosa root and transported through vascular bundle acropetally. Enzyme activity studies, GC-MS analysis, and SEM and TEM observations indicated that berberine might first function on the cell membrane indicated by variation of the IUFA percent and then cause POD, PPO, and SOD activity changes and cellular structure deformity, which was eventually expressed as the decrease of cell adaptation ability and abnormal cell function and may even result in cell death. Environmental safety evaluation tests revealed that berberine was low in toxicity to Brachydanio rerio. These indicate that berberine has the potential to be a bioherbicide and/or a lead molecule for new herbicides.

show abstract

Section: Resultsmentioning

confidence: 87%

“…As a contrast, the 96 h LC 50 of commercially used herbicide atrazine to B. rerio is 29.06 mg L −1 . 46 Generally, berberine is considered to be a nontoxic alkaloid at doses used in clinical situations. 47 A dose up to 14 500 mg L −1 in rats and 7 000 mg L −1 in mice did not cause any maternal deaths.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Herbicidal Spectrum, Absorption and Transportation, and Physiological Effect on Bidens pilosa of the Natural Alkaloid Berberine

Liu

et al. 2017

J. Agric. Food Chem.

View full text Add to dashboard Cite

show abstract

“…exposed to fish processing plant effluents (Araújo et al, 2016b). It has been observed that the uptake of atrazine by fish occurs quickly, in the first 2 h of exposure (Yan et al, 2015); therefore, under natural conditions, as avoidance is a very fast response (30 min in the present study), fish might avoid the uptake of atrazine due to continuous exposure by swimming to less disturbed habitats, thus reducing the expected toxicity at the individual level (Saglio and Trijasse, 1998). Consequently, this avoidance behaviour could determine, to some extent, the spatial distribution of the fish in natural systems.…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, an avoidance response was observed at concentrations as low as 0.02 µg·L -1 (avoided by 40% of the exposed P. reticulata population), demonstrating it to be a highly sensitive response; indeed almost all the population (80%) avoided atrazine at a concentration of 105 µg·L -1 . When compared to lethal responses, the death expected of 50% of the population (LC 50 ) for many fish species was estimated to occur at much higher concentrations: the LC 50 (exposure time was not indicated) of atrazine was 9.37 and 6.37 mg·L -1 for O. niloticus and Chrysichthyes auratus, respectively (Hussein et al, 1996), the 96-h LC 50 for Channa punctatus was 42.3 mg·L -1 (Nwani et al, 2010), for BrachyDanio rerio it was 29.1 mg·L -1 (Yan et al, 2015) and 15.6 mg·L -1 (Wang et al, 2017), and for Cyprinus carpio it was and 2.14 mg·L -1 (Xing et al, 2015). The results cited, including the no-observed-effective concentration (NOEC) of 3 mg·L -1 estimated for lethality (Yan et al, 2015), are around two orders of magnitude higher than the 3-h AC 50 : 0.065 µg·L -1 and could prevent avoidance behaviour due to the torpidity effect (which was observed in our laboratory at 1 mg·L -1 ; results not shown).…”

Section: Discussionmentioning

confidence: 99%

“…In addition, , 2015). Effects on fish behaviour (including avoidance responses) have been widely described (Steinberg et al, 1995;Graymore et al, 2001;Tierney et al, 2007;Pérez et al, 2013;Yan et al, 2015). The easy-to-culture guppy is a model organism in the fields of ecology, evolution and ethology and has already been shown to spatially avoid chemical contamination .…”

Section: ~ 61 ~mentioning

confidence: 99%

See 1 more Smart Citation

Effects of aquatic contaminants on the habitat selection and spatial distribution in fish: a complementary approach to traditional ecotoxicological tests

Silva¹

View full text Add to dashboard Cite

Dedicatória Dedico este trabalho aos meus pais, Ângela e Iberê, e à minha esposa e filho, Verónica e Gael, sem os quais eu não teria a inspiração e forças necessárias para chegar onde cheguei! Dedico também ao meu tio Clemente Silva Vieira Filho (in memorian), um dos homems mais humildes e altruístas que já conheci! ~ vi ~ Epígrafe "Let me tell you something you already know. The world ain't all sunshine and rainbows. It's a very mean and nasty place and i don't care how tough you are it will beat you to your knees and keep you there permanently if you let it. You, me, or nobody is gonna hit as hard as life. But it ain't about how hard ya hit. It's about how hard you can get hit and keep moving forward. How much you can take and keep moving forward. That's how winning is done!" Rocky Balboa. Directed by: Sylvester Stallone. Hollywood (U.S.A.): MGM Studios / Columbia Pictures, 2007, DVD. ~ vii ~ Agradecimentos A Deus, ADONAI, por ser minha fonte de forças e energia! Aos meus pais Ângela e Iberê, os quais sempre me apoiaram em toda a minha trajetória. A minha esposa Verónica, minha amada e companheira! Ao meu filho Gael, um menino lindo, que veio trazer inspiração e forças para que eu continuasse lutando! A minha família do Brasil... Roberta, Rodrigo, João Victor, Rafa e Tio Ricardo: A presença de vocês é indispensável para mim! A minha família da Argentina: Os considero como irmãos de sangue! Aos meu querido orientador e co-orientadores: Marcelo Pompêo, Teresa Paiva e Cristiano Araújo, os quais possibilitaram meu crescimento como profissional, me apoiando em todas as decisões científicas e acadêmicas! Vocês foram o pilar de mais essa minha vitória! Aos colegas de pós-graduação do DEBIQ, especialmente ao Douglas, Rodrigo Marassi, Fernanda Sampaio, Patrícia, Lucas e Luiz. As minhas maravilhosas alunas de IC: Thaíse e Amanda. Vocês foram um apoio imprescindível para minhas pesquisas! À Lucinha, minha técnica favorita! Aos pesquisadores e companheiros que me auxiliaram na escrita de meus artigos: Rui Ribeiro (Portugal), Julio Cézar Lopez-Doval (Espanha), Fernanda França, M. Neto (apoio total na reta final) e a querida Sheila Cardoso-Silva.

show abstract

Roles of iron and manganese in bimetallic biochar composites for efficient persulfate activation and atrazine removal

Liang,

Tao,

Zhao

et al. 2024

Biochar

View full text Add to dashboard Cite

As for Atrazine (C8H14ClN5) degradation in soil, iron (Fe)-manganese (Mn) bimetallic biochar composites were proved to be more efficient for persulfate (PS) activation than monometallic ones. The atrazine removal rates of Fe/Mn loaded biochar + PS systems were 2.17–2.89 times higher than Fe/Mn loaded biochar alone. Compared with monometallic biochar, the higher atrazine removal rates by bimetallic biochar (77.2–96.7%) were mainly attributed to the synergy degradation and adsorption due to the larger amounts of metal oxides on the biochar surface. Atrazine degradation in Fe-rich biochar systems was mainly attributed to free radicals (i.e., $${\text{SO}}_{4}^{ \cdot - }$$ SO 4 · - and ·OH) through oxidative routes, whereas surface-bound radicals, 1O2, and free radicals were responsible for the degradation of atrazine in Mn-rich biochar systems. Furthermore, with a higher ratio of Fe(II) and Mn(III) formed in Fe-rich bimetallic biochar, the valence state exchange between Fe and Mn contributed significantly to the more effective activation of PS and the generation of more free radicals. The pathways of atrazine degradation in the Fe-rich bimetallic biochar systems involved alkyl hydroxylation, alkyl oxidation, dealkylation, and dechlorohydroxylation. The results indicated that bimetallic biochar composites with more Fe and less Mn are more effective for the PS-based degradation of atrazine, which guides the ration design of easily available carbon materials targeted for the efficient remediation of various organic-polluted soil. Graphical Abstract

show abstract

Kinetic Processes of Acute Atrazine Toxicity to Brachydanio rerio in the Presence and Absence of Suspended Sediments

Cited by 11 publications

References 36 publications

Herbicidal Spectrum, Absorption and Transportation, and Physiological Effect on Bidens pilosa of the Natural Alkaloid Berberine

Herbicidal Spectrum, Absorption and Transportation, and Physiological Effect on Bidens pilosa of the Natural Alkaloid Berberine

Effects of aquatic contaminants on the habitat selection and spatial distribution in fish: a complementary approach to traditional ecotoxicological tests

Roles of iron and manganese in bimetallic biochar composites for efficient persulfate activation and atrazine removal

Contact Info

Product

Resources

About