scholarly journals Herbicidal Activity of Glucosinolate Degradation Products in Fermented Meadowfoam (Limnanthes alba) Seed Meal

2009 ◽  
Vol 57 (5) ◽  
pp. 1821-1826 ◽  
Author(s):  
Jan F. Stevens ◽  
Ralph L. Reed ◽  
Susan Alber ◽  
Larry Pritchett ◽  
Stephen Machado
Keyword(s):  
Degradation Products ◽  
Herbicidal Activity ◽  
Seed Meal ◽  
Limnanthes Alba

scholarly journals Activity of Meadowfoam (Limnanthes alba) Seed Meal Glucolimnanthin Degradation Products against Soilborne Pathogens

2011 ◽  
Vol 60 (1) ◽  
pp. 339-345 ◽  
Author(s):  
Inga A. Zasada ◽  
Jerry E. Weiland ◽  
Ralph L. Reed ◽  
Jan F. Stevens
Keyword(s):  
Degradation Products ◽  
Seed Meal ◽  
Soilborne Pathogens ◽  
Limnanthes Alba

Potential of meadowfoam ( Limnanthes alba ) seed meal as an organic source of nitrogen

2018 ◽  
Vol 125 ◽  
pp. 273-277
Author(s):  
Cafer Türkmen ◽  
David D. Myrold
Keyword(s):  
Seed Meal ◽  
Limnanthes Alba ◽  
Organic Source

Herbicidal activity of mustard seed meal ( Sinapis alba ‘IdaGold’ and Brassica juncea ‘Pacific Gold’) on weed emergence

2015 ◽  
Vol 77 ◽  
pp. 1004-1013 ◽  
Author(s):  
Xi Wang ◽  
Mengmeng Gu ◽  
Genhua Niu ◽  
Paul A. Baumann
Keyword(s):  
Brassica Juncea ◽  
Sinapis Alba ◽  
Herbicidal Activity ◽  
Seed Meal ◽  
Mustard Seed ◽  
Weed Emergence

scholarly journals Characterization of Phytoecdysteroid Glycosides in Meadowfoam (Limnanthes alba) Seed Meal by Positive and Negative Ion LC-MS/MS

2008 ◽  
Vol 56 (11) ◽  
pp. 3945-3952 ◽  
Author(s):  
Jan F. Stevens ◽  
Ralph L. Reed ◽  
Jeffrey T. Morré
Keyword(s):  
Negative Ion ◽  
Seed Meal ◽  
Limnanthes Alba

Effect of Adjuvant on Foliar Absorption and Activity of Clethodim and Polar Degradation Products of Clethodim

Weed Science ◽  
1991 ◽  
Vol 39 (4) ◽  
pp. 543-547 ◽  
Author(s):  
David C. Bridges ◽  
Albert E. Smith ◽  
Linford N. Falb
Keyword(s):  
Degradation Products ◽  
Time Of Day ◽  
Herbicidal Activity ◽  
Foliar Uptake ◽  
Foliar Absorption

Research was conducted to determine foliar absorption of14C-clethodim and its polar degradation products with five adjuvants and to compare the relative herbicidal activity of clethodim and its polar degradation products. Differential14C-clethodim and14C-polar degradation products absorption occurred among the five adjuvants. Adjuvants that mediated rapid foliar absorption of clethodim did not always mediate rapid foliar uptake of polar degradation products. Herbicidal activity of clethodim exceeded activity of polar degradation products regardless of time of day of application or whether adjuvant was used. Inclusion of adjuvant was required for herbicidal activity of polar degradation products. Clethodim activity declined when applied at 0800 h EDT compared to applications at 2000 h EDT. To maximize herbicidal activity of clethodim, adjuvants should be selected that mediate rapid foliar absorption of both clethodim and the polar degradation products of clethodim and that minimize photodegradation of clethodim.

Field Evaluation of Meadowfoam (Limnanthes alba) Seed Meal for Weed Management

Weed Science ◽  
2015 ◽  
Vol 63 (1) ◽  
pp. 302-311 ◽  
Author(s):  
Suphannika Intanon ◽  
Andrew G. Hulting ◽  
Carol A. Mallory-Smith
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Untreated Control ◽  
Field Evaluation ◽  
Seed Meal ◽  
Growth Enhancement ◽  
Limnanthes Alba ◽  
Lettuce Yield ◽  
Leaf N Content ◽  
Weed Emergence

Meadowfoam seed meal (MSM), a by-product after oil extraction, has potential uses for crop growth enhancement or weed control. The herbicidal effect of MSM is the result of a secondary metabolite, glucosinolate glucolimnanthin (GLN). Field evaluations were conducted using concentrations of 3, 5, and 7% by weight and two forms (nonactivated and activated) of MSM applied as soil amendments. No injury was observed on lettuce transplanted 7 d after MSM incorporation in 2011. Activated MSM at 7% reduced weed emergence up to 71%. Lettuce leaf N content was at least 8.5-fold greater in MSM treatments compared to the untreated control. Greater soil nitrate levels correlated with greater weed biomass in MSM-amended plots. Isothiocyanate, a potent herbicidal compound, was detected in soil incorporated with 7% activated MSM. In 2012, 2.86 g m−2 of activated MSM, applied as a split or single dose, was evaluated for weed control efficacy and crop injury response. The split MSM application provided weed control similar to that from the single MSM application. The split and single MSM applications inhibited spiny sowthistle emergence more than 95% compared to the untreated control. A single application of activated MSM as a PRE soil amendment suppressed weeds and increased lettuce yield.

scholarly journals Identifying Rates of Meadowfoam (Limnanthes alba) Seed Meal Needed for Suppression of Meloidogyne hapla and Pythium irregulare in Soil

Plant Disease ◽  
2014 ◽  
Vol 98 (9) ◽  
pp. 1253-1260 ◽  
Author(s):  
Yurdagül Şimşek Erşahin ◽  
Jerry E. Weiland ◽  
Inga A. Zasada ◽  
Ralph L. Reed ◽  
J. Fred Stevens
Keyword(s):  
Production Systems ◽  
Seed Meal ◽  
Meloidogyne Hapla ◽  
Pythium Irregulare ◽  
Complete Control ◽  
Limnanthes Alba ◽  
Pathogen Suppression ◽  
Plant Metabolite ◽  
Secondary Plant Metabolite ◽  
Amended Soil

Meadowfoam (Limnanthes alba) is a commercial oilseed annual crop grown in Oregon. After extracting oil from seed, the remaining seed meal is rich in the secondary plant metabolite glucolimnanthin, which can be converted into pesticidal compounds such as 3-methoxybenzyl isothiocyanate (ITC) and 3-methoxyphenylacetonitrile (nitrile) in the presence of the enzyme myrosinase. In previous studies, we demonstrated that ITC and nitrile, produced by mixing freshly ground meadowfoam seed with meadowfoam seed meal, are toxic to the plant-parasitic nematode Meloidogyne hapla and the plant pathogen Pythium irregulare. In this study, we evaluated factors that might influence the implementation of meadowfoam seed meal into agricultural production systems for soilborne pathogen and nematode control. Rate-finding experiments demonstrated that a minimum 1.0% seed/seed meal formulation (wt/wt) was necessary to achieve nematode and pathogen suppression; seed meal alone was insufficient for complete control of M. hapla and stimulated the growth of P. irregulare. When this 1.0% seed/seed meal formulation was used, a greater soil amendment rate was required to cause 100% mortality of P. irregulare (1.0% wt/wt) than for M. hapla (0.5% wt/wt). In phytotoxicity experiments, soil amended with the 1.0% seed/seed meal formulation was consistently phytotoxic to wheat, cucumber, and tomato. However, phytotoxic effects were mitigated by a delayed planting into the amended soil. A final assay to monitor concentrations of ITC and nitrile in conjunction with assessing M. hapla and P. irregulare mortality was conducted over a 6-day period in soils amended at 0.5 and 1.0% (wt/wt) with the 1.0% seed/seed meal formulation. The response was rapid, with 100% mortality of both organisms within 2 h after exposure to amended soil. Concentrations of nitrile remained relatively constant over the 6-day period (approximately 0.017 and 0.032 mg/ml at 0.5 and 1.0% amendment rates, respectively), whereas ITC production increased rapidly and peaked 12 to 24 h after amendment (0.083 and 0.171 mg/ml at 0.5 and 1.0% amendment rates, respectively) before returning to near undetectable levels.

Identification and Phytotoxicity of a New Glucosinolate Breakdown Product from Meadowfoam (Limnanthes alba) Seed Meal

2014 ◽  
Vol 62 (30) ◽  
pp. 7423-7429 ◽  
Author(s):  
Suphannika Intanon ◽  
Ralph L. Reed ◽  
Jan F. Stevens ◽  
Andrew G. Hulting ◽  
Carol A. Mallory-Smith
Keyword(s):  
Seed Meal ◽  
Breakdown Product ◽  
Limnanthes Alba

Collagen degradation products modulate matrix metalloproteinase expression in cultured articular chondrocytes

2005 ◽  
Vol 24 (1) ◽  
pp. 63-70 ◽  
Author(s):  
M. Fichter ◽  
U. Körner ◽  
J. Schömburg ◽  
L. Jennings ◽  
A. A. Cole ◽  
...  
Keyword(s):  
Matrix Metalloproteinase ◽  
Articular Chondrocytes ◽  
Degradation Products ◽  
Collagen Degradation ◽  
Collagen Degradation Products
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