Comparison of the Photodegradation of Imazethapyr in Aqueous Solution, on Epicuticular Waxes, and on Intact Corn (Zea Mays) and Soybean (Glycine Max) Leaves

被引：6

作者：

Anderson, Scott C. ^{[1
]}

Linh Chu ^{[1
]}

Bouma, Chandra ^{[1
]}

Beukelman, Logan ^{[1
]}

McLouth, Rayna ^{[1
]}

Larson, Evan ^{[1
]}

Nienow, Amanda M. ^{[1
]}

机构：

[1] Gustavus Adolphus Coll, Dept Chem, 800 W Coll Ave, St Peter, MN 56082 USA

来源：

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES | 2019年 / 54卷 / 02期

基金：

美国国家科学基金会;

关键词：

Imazethapyr; epicuticular wax; photodegradation; soybean (Glycine max); corn (Zea mays); solar simulator; NATURAL-WATERS; PHOTOLYTIC DEGRADATION; STATISTICAL-ANALYSIS; MASS-SPECTROMETRY; SURFACE WAXES; PHOTOCHEMISTRY; HERBICIDE; METHYL; IMAZAMOX; SOILS;

D O I：

10.1080/03601234.2018.1511400

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A direct, controlled comparison of the photodegradation of imazethapyr has been made between imazethapyr in aqueous solutions, imazethapyr on the surface of epicuticular waxes of corn and soybean plants, and imazethapyr on the surface of intact corn and soybean plant leaves. In some experiments, the imazethapyr solutions were allowed to evaporate partially or fully after application to better model environmental conditions. The photodegradation of imazethapyr was fastest in aqueous solutions (k = 0.16 +/- 0.02 h(-1)) and slowest on the surface of corn and soybean plants (k(corn) = 0.00048 +/- 0.001 h(-1) and k(soy) = 0.00054 +/- 0.003 h(-1)). Experiments allowing evaporation during irradiation have intermediate rate constants (e.g., k(corn) = 0.082 +/- 0.005 h(-1)). Finally, identification of photoproducts was also examined on epicuticular waxes of corn and soybean plants for the first time.

引用

页码：129 / 137

页数：9

共 52 条

[1]

Anderson SC, 2016, ENVIRON SCI-PROC IMP, V18, P1305, DOI [10.1039/c6em00401f, 10.1039/C6EM00401F]

[2] Effect of the epicuticular waxes of fruits and vegetables on the photodegradation of rotenone [J].

Angioni, A ;

Cabizza, M ;

Cabras, M ;

Melis, M ;

Tuberoso, C ;

Cabras, P .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2004, 52 (11) :3451-3455

[3] Imazethapyr aqueous photolysis, reaction quantum yield, and hydroxyl radical rate constant [J].

Avila, LA ;

Massey, JH ;

Senseman, SA ;

Armbrust, KL ;

Lancaster, SR ;

McCauley, GN ;

Chandler, JM .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2006, 54 (07) :2635-2639

[4] Environmental fate of trifloxystrobin in soils of different geographical origins and photolytic degradation in water [J].

Banerjee, Kaushik ;

Ligon, Axel Patrick ;

Spiteller, Michael .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2006, 54 (25) :9479-9487

[5]

BIANCHI G, 1984, CEREAL CHEM, V61, P45

[6] Photoinduced addition of the fungicide anilazine to cyclohexene and methyl oleate as model compounds of plant cuticle constituents [J].

Breithaupt, DE ;

Schwack, W .

CHEMOSPHERE, 2000, 41 (09) :1401-1406

[7] Effect of epicuticular waxes of fruits on the photodegradation of fenthion [J].

Cabras, P ;

Angioni, A ;

Garau, VL ;

Melis, M ;

Pirisi, FM ;

Minelli, EV .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1997, 45 (09) :3681-3683

[8] BIODEGRADATION CHARACTERISTICS OF IMAZAQUIN AND IMAZETHAPYR [J].

CANTWELL, JR ;

LIEBL, RA ;

SLIFE, FW .

WEED SCIENCE, 1989, 37 (06) :815-819

[9] Analysis of the Photodegradation of the Imidazolinone Herbicides Imazamox, Imazapic, Imazaquin, and Imazamethabenz-methyl in Aqueous Solution [J].

Christiansen, Amy ;

Peterson, Alexa ;

Anderson, Scott C. ;

Lass, Riley ;

Johnson, Maja ;

Nienow, Amanda M. .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2015, 63 (50) :10768-10777

[10] Aqueous photochemistry of pesticides triadimefon and triadimenol [J].

Da Silva, JP ;

Ferreira, LFV ;

Da Silva, AM .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2003, 154 (2-3) :293-298

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