Efikasi herbisida Thiencarbazone-methyl+isoxaflutole terhadap pengendalian gulma dan hasil tanaman (Zea mays L.) DOI Creative Commons
Irawati Chaniago,

Ardi Ardi,

Doni Hariandi

et al.

Jurnal Agro, Journal Year: 2023, Volume and Issue: 10(1), P. 175 - 190

Published: July 31, 2023

Maize is a second important food crop, its yield the raw material for feed industry. As other crops, maize can not avoid weed association and interference. Weed may cause farmers’ economic loss. An experiment to determine efficacy of thiencarbazone methyl+isoxaflutole herbicide effects control weeds was conducted from October 2022 February 2023 at Ultisol Universitas Andalas, Limau Manis, Padang. The experimental units were laid out according completely randomized block design (CRBD) with 10 treatments three replications. treatment different types namely: no weeding, various doses thiencarbazone-methyl 90 g L-1+isoxaflutole 225 L-1 i.e 250 mL ha-1, 300 350 400 ha-1 applied 2 DAP, respectively, manual weeding. Herbicide effectively controlled Erechtites valerianifolia, Oxalis barrelieri, Asplenium rhizophyllum. dose DAP reduced dry weight per m-2 as much 93% 6 WAP. by application increased 72.20% ha compared no-weed-control group without causing phytotoxicity on plants.ABSTRAK Tanaman jagung merupakan tanaman pangan penting kedua dan menjadi bahan baku industri pakan. Seperti lainnya, juga tidak dapat terhindar dari interaksi asosiasi dengan gulma. Keberadaan gulma pada pertanaman menimbulkan kerugian ekonomis. Penelitian dilakukan untuk mengetahui pengaruh efikasi herbisida thiencarbazone-methyl+isoxaflutole yang diaplikasikan waktu berbeda terhadap pengendalian hasil telah dilaksanakan bulan Oktober sampai Februari tanah ultisol kampus Andalas menggunakan rancangan acak kelompok (RAK) perlakuan 3 ulangan. Perlakuan adalah tanpa gulma, berbagai dosis yaitu , masing-masing HST, secara manual. Herbisida hingga efektif mengendalikan HST menurunkan bobot kering MST. Pengendalian meningkatkan sebesar 72,20% dibandingkan gejala fitotoksisitas jagung.

Language: Английский

Allelochemicals of Alexandrium tamarense and its algicidal mechanism for Prorocentrum donghaiense and Heterosigma akashiwo DOI
Shuhui Wang, Na Zhang, Hongyan Xu

et al.

Chemosphere, Journal Year: 2024, Volume and Issue: 357, P. 141953 - 141953

Published: April 11, 2024

Language: Английский

Citations

5
Elucidating the Underlying Allelopathy Effects of Euphorbia jolkinii on Arundinella hookeri Using Metabolomics Profiling DOI Creative Commons

Xue Xiao,

Zili Ma, Kai Zhou

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(1), P. 123 - 123

Published: Jan. 3, 2025

Euphorbia jolkinii dominates the subalpine meadows in Shangri-La (Southwest China) owing to its potent allelopathic effects. However, effects underlying allelopathy require further characterization at physiological and molecular levels. In this study, physiological, biochemical, metabolic mechanisms E. were investigated using Arundinella hookeri as a receptor plant. The treatment of A. seedlings with aqueous extract (EJAE) disrupted their growth by inhibiting photosynthesis, disrupting oxidation systems, increasing soluble sugar accumulation chlorophyll synthesis. Collectively, causes severe impairment accompanied abnormal photosynthesis reduced biomass accumulation. Moreover, EJAE suppressed gibberellin, indoleacetic acid, zeatin, salicylic jasmonic acid levels while promoting abscisic Further metabolomic analyses identified numerous differentially abundant metabolites primarily enriched α-linolenic, phenylpropanoid, flavonoid biosynthesis pathways EJAE-treated seedlings. This study demonstrated that exhibits comprehensive on plants, including significant disruption endogenous hormone synthesis, inhibition an membrane changes crucial processes associated biosynthesis. Thus, our provides solid theoretical foundation for understanding regulatory allelopathy.

Language: Английский

Citations

0
Algicidal mechanism and algicidal active metabolites of Alteromonas abrolhosensis against harmful dinoflagellates Karenia mikimotoi DOI
Jia Yang,

Jiazhan Lu,

Jingxia Zhang

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 490, P. 137815 - 137815

Published: March 4, 2025

Language: Английский

Citations

0
Two different anti-algal control mechanisms in Microcystis aeruginosa induced by robinin or tannin rich plants DOI
Chan Saem Gil, Seok Hyun Eom

Chemosphere, Journal Year: 2023, Volume and Issue: 323, P. 138202 - 138202

Published: Feb. 25, 2023

Language: Английский

Citations

10
Allelopathy of extracellular chemicals released by Karlodinium veneficum on photosynthesis of Prorocentrum donghaiense DOI

Hongyan Xu,

Yanru Wang, Kun‐Ju Lin

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 476, P. 135079 - 135079

Published: July 1, 2024

Language: Английский

Citations

3
Long-term response of interspecific competition among three typical bloom-forming species to changes in phosphorus and temperature DOI

Anglu Shen,

Hongyue Liu, Yuanli Zhu

et al.

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 196, P. 106421 - 106421

Published: March 1, 2024

Language: Английский

Citations

2
Triazine herbicide reduced the toxicity of the harmful dinoflagellate Karenia mikimotoi by impairing its photosynthetic systems DOI Creative Commons
Xiangwu Chen, Heng Chen, Hailing Zhao

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 269, P. 115740 - 115740

Published: Dec. 1, 2023

Triazine herbicides are common contaminants in coastal waters, and they recognized as inhibitors of photosystem II, causing significant hinderance to the growth reproduction phytoplankton. However, influence these on microalgal toxin production remains unclear. This study aimed examine this relationship by conducting a comprehensive physiological 4D label-free quantitative proteomic analysis harmful dinoflagellate Karenia mikimotoi presence triazine herbicide dipropetryn. The findings demonstrated decrease photosynthetic activity pigment content, well reduced levels unsaturated fatty acids, reactive oxygen species (ROS), hemolytic toxins K. when exposed revealed down-regulation proteins associated with photosynthesis, ROS response, energy metabolism, such acid biosynthesis, chlorophyll nitrogen metabolism. In contrast, an up-regulation related energy-producing processes, β-oxidation, glycolysis, tricarboxylic cycle, was observed. that dipropetryn disrupts systems mikimotoi, resulting notable algal production. These provide valuable insights into underlying mechanisms toxigenic microalgae explore potential effect pollution blooms environments.

Language: Английский

Citations

5
Exposure to the mixotrophic dinoflagellate Lepidodinium sp. and its cues increase toxin production of Pseudo-nitzschia multiseries DOI
Shuwen Zhang, Tingting Zheng,

Muyao Zhou

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 914, P. 169812 - 169812

Published: Jan. 4, 2024

Language: Английский

Citations

1
Inhibitory Effect of Combined Exposure to Copper Ions and Polystyrene Microplastics on the Growth of Skeletonema costatum DOI Open Access

Haoyuan Liu,

Yu Zhen, Xiuli Zhang

et al.

Water, Journal Year: 2024, Volume and Issue: 16(16), P. 2270 - 2270

Published: Aug. 12, 2024

As two significant pollutants, the increased concentrations of copper ions and microplastics in coastal waters pose a substantial threat to health marine ecosystems. This study explored individual combined toxic effects on diatom Skeletonema costatum. The results indicated that at concentration 0.05 mg/L exerted negative impact growth S. costatum; however, influence algal cell was more complex: there no inhibition observed within first 72 h cultivation, but pronounced effect noted between 96 h, with high (10.00 mg/L) even causing premature stagnation phase growth. When both pollutants were present simultaneously, their similar microplastic pollution group, yet condition better than ion group. Through investigation adsorption rates toxicity mitigation rates, it found by reason for improved cells mixed group compared However, later stages inhibitory microspheres counteracted mitigating toxicity. provides reference evaluating heavy metals ecosystem revealing interactions different pollutants.

Language: Английский

Citations

1
ROS-mediated time-varying cytotoxic effects on Phaeodactylum tricornutum under the stress of commercial naphthenic acids DOI Creative Commons
Zhihao Lin, Huanxin Zhang,

Zhao Xinyu

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2022, Volume and Issue: 243, P. 114014 - 114014

Published: Aug. 23, 2022

The aquatic toxicity and ecological risks of naphthenic acids (NAs) in marine environments have attracted an increasing amount attention. However, there remains a lack methodologies for the long-term risk assessment NAs on ecosystems after high acid crude oil spill accidents. In this study, using model microalgae Phaeodactylum tricornutum as target object, time-effect manner under stress is investigated continuous 24-144 h. We found that: 1) caused photosynthetic damage persistent oxidative that slowed growth rate limited maximum P. population within 24 h to 144 exposure, especially concentration treatment; 2) Within h, can cause tricornutum. cell membrane radical species (ROS) accumulation were observed obvious time-effect; 3) Under stress, two types death (accidental regulated death) mediated by ROS played different roles inhibition Moreover, was accompanied PS externalization, DNA fragment G2/M phase stagnation acted adaptive regulatory mechanism stress. This explained dose-time-effects Overall, results suggested lasting effect phytoplankton populations, assessments are required first attempt identify at cellular level explain when exposed NAs. research will provide new approach facilitate further related contaminants ecosystems.

Language: Английский

Citations

5