Effect of Trifluralin and Nitralin on Mitochondrial Activities

Weed Science ◽  
1968 ◽  
Vol 16 (1) ◽  
pp. 83-85 ◽  
Author(s):  
N. S. Negi ◽  
H. H. Funderburk ◽  
D. P. Schultz ◽  
D. E. Davis
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
Oxygen Uptake ◽  
Oxidative Phosphorylation ◽  
Phosphate Uptake ◽  
Sorghum Vulgare ◽  
Isolated Mitochondria ◽  
Resistant Species ◽  
No Inhibition

Oxygen uptake and oxidative phosphorylation were inhibited by 10–4 M of α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin) in isolated mitochondria of corn (Zea mays L., var. Dixie 18), Sorghum (Sorghum vulgare Pers., var. Early Hegari) and Soybean (Glycine max L., var. Lee). Little or no inhibition was detectable at 10–5 and 10–6 M in corn and sorghum. Data for 4-(methylsulfonyl)2,6-dinitro-N,N-dipropylaniline (nitralin) were more variable but similar. The effects on these processes do not seem to be related to the selectivity of trifluralin since it caused a greater reduction in oxygen and phosphate uptake in resistant species (soybean) than the susceptible species (sorghum).

Influence of phosphate status on phosphate uptake kinetics of maize (Zea mays) and soybean (Glycine max)

1990 ◽  
Vol 124 (2) ◽  
pp. 175-182 ◽  
Author(s):  
A. Jungk ◽  
C. J. Asher ◽  
D. G. Edwards ◽  
D. Meyer
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
Phosphate Uptake ◽  
Uptake Kinetics ◽  
Kinetics Of

scholarly journals Oxidative phosphorylation during glycollate metabolism in mitochondria from phototrophic Euglena gracilis

1975 ◽  
Vol 150 (3) ◽  
pp. 373-377 ◽  
Author(s):  
N Collins ◽  
R H Brown ◽  
M J Merrett
Keyword(s):  
Cytochrome C ◽  
Oxygen Uptake ◽  
Oxidative Phosphorylation ◽  
Cytochrome C Oxidase ◽  
Electron Acceptor ◽  
Euglena Gracilis ◽  
Gradient Centrifugation ◽  
Antimycin A ◽  
Isolated Mitochondria ◽  
Glycollate Dehydrogenase

Mitochondria were isolated by gradient centrifugation on linear sucrose gradients from broken cell suspensions of phototrophically grown Euglena gracilis. An antimycin A-sensitive but rotenone-insensitive glycollate-dependent oxygen uptake was demonstrated in isolated mitochondria. The partial reactions of glycollate-cytochrome c oxidoreductase and cytochrome c oxidase were demonstrated by using Euglena cytochrome c as exogenous electron acceptor/donor. Isolated mitochondria contain glycollate dehydrogenase and glyoxylate-glutamate aminotransferase and oxidize exogenous glycine. A P:O ratio of 1.7 was obtained for glycollate oxidation, consistent with glycollate electrons entering the Euglena respiratory chain at the flavoprotein level. The significance of these results is discussed in relation to photorespiration in algae.

Regulation of Amitrole and Diuron Toxicity by Phosphorus

Weed Science ◽  
1970 ◽  
Vol 18 (5) ◽  
pp. 619-623 ◽  
Author(s):  
F. L. Selman ◽  
R. P. Upchurch
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Glycine Max ◽  
Phaseolus Vulgaris ◽  
Pisum Sativum ◽  
Arachis Hypogaea ◽  
Lolium Multiflorum ◽  
Soil Phosphorus ◽  
Phosphorus Level ◽  
Sorghum Vulgare

The influence of soil-applied phosphorus on the phytotoxicity of soil-applied 3-amino-s-triazole (amitrole) and 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron) for corn(Zea maysL.), ryegrass(Lolium multiflorumL.), rye(Secale cerealeL.), snapbeans(Phaseolus vulgarisL.), soybeans(Glycine max(L.) Mers.), sorghum(Sorghum vulgarePers.), wheat(Triticum aestivumL.), cotton(Gossypium hirsutumL.), peanuts(Arachis hypogaeaL.), and peas(Pisum sativumL.) was studied under greenhouse conditions. All species except cotton and peanuts indicated an amitrole-phosphorus interaction. Greater phytotoxicity was found for a given rate of amitrole as the soil phosphorus level was increased. A diuron-phosphorus interaction was observed for cotton and soybeans only.

Comparison of fluoride effects on germination and growth of Zea mays , Glycine max and Sorghum vulgare

2016 ◽  
Vol 96 (11) ◽  
pp. 3679-3687 ◽  
Author(s):  
Brenda L Fina ◽  
Maela Lupo ◽  
Nicolas Dri ◽  
Mercedes Lombarte ◽  
Alfredo Rigalli
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
Sorghum Vulgare ◽  
Germination And Growth

Effect of Pyriclor on Mitochondrial Oxidation

Weed Science ◽  
1969 ◽  
Vol 17 (4) ◽  
pp. 468-470 ◽  
Author(s):  
D. D. Killion ◽  
R. E. Frans
Keyword(s):  
Glycine Max ◽  
Oxygen Uptake ◽  
Oxidative Phosphorylation ◽  
Electron Carrier ◽  
Carbonyl Cyanide ◽  
Mitochondrial Oxidation

The effect of 2,3,5-trichloro-4-pyridinol (pyriclor), as well as carbonyl cyanide m-chlorophenyl hydrazone, 2,4-dinitrophenol, and oligomycin, on oxygen uptake and oxidative phosphorylation was investigated with mitochondria isolated from hypocotyls of etiolated soybeans (Glycine max Merrill, var. Lee). Pyriclor inhibited both coupled and uncoupled reactions. This suggests that pyriclor either acts on a nonphosphorylating intermediate close to the electron carrier chain or with a component of the electron carrier chain, or both.

Enhanced Phytotoxicity of Atrazine-Phosphate Combinations

Weed Science ◽  
1973 ◽  
Vol 21 (1) ◽  
pp. 37-40 ◽  
Author(s):  
C. F. Stolp ◽  
Donald Penner
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
Pisum Sativum ◽  
P Uptake ◽  
High Rate ◽  
Sand Culture ◽  
Sorghum Vulgare ◽  
Loam Soil ◽  
P Application ◽  
High Level

Soybean [Glycine max(L.) Merr.] seedlings grown in the greenhouse in a Wisner loam soil showed a greater reduction in plant growth from an application of 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine) if fertilized with 224 kg/ha of P2O5. This interaction was not observed in tolerant corn (Zea maysL.) seedlings in any of the four soils studied. The injury in sand culture of high levels of atrazine to soybean, corn, pea (Pisum sativumL.), and sorghum (Sorghum vulgareL.) seedlings increased when high levels of P (phosphorus) were present. The high level of P did not increase atrazine uptake, and in corn atrazine did not increase32P uptake. Plants receiving the atrazine-phosphate combination exhibited a higher rate of respiration providing a possible basis for the observed interaction. The high rate of P application slightly reduced atrazine metabolism by corn and pea but not by soybean and sorghum.

scholarly journals Sistemas de cultivo e características do solo afetando a estabilidade de agregados

1998 ◽  
Vol 22 (2) ◽  
pp. 311-317 ◽  
Author(s):  
I. F. Silva ◽  
J. Mielniczuk
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Glycine Max ◽  
Zea Mays L ◽  
Triticum Aestivum L ◽  
Digitaria Decumbens ◽  
Glycine Max L ◽  
Macroptilium Atropurpureum

Em um Latossolo Roxo de Santo Ângelo (RS), e em um Podzólico Vermelho-Escuro de Eldorado do Sul (RS), ambos com textura argilosa, submetidos o primeiro à exploração com cultivo convencional de trigo (Triticum aestivum L.) e soja (Glycine max L.) e sob setária (Setaria anceps L.), e o segundo à exploração com capim-pangola (Digitaria decumbens L.), siratro (Macroptilium atropurpureum L.), plantio direto com aveia (Avena bizantina L.)/milho (Zea mays L.) e área sem vegetação, foi realizado o presente trabalho durante a safra de verão (1990/1991), com o objetivo de avaliar a estabilidade e a agregação do solo sob diferentes sistemas de cultivo. Constatou-se, nessa avaliação, que as gramíneas perenes por meio do seu sistema radicular tiveram grande efeito na agregação e estabilidade dos agregados do solo e que os teores de carbono orgânico, de ferro e alumínio-oxalato, argila e grau de dispersão tiveram também efeitos na agregação do solo, porém insuficientes para explicar as variações entre o diâmetro médio ponderado dos agregados sob os diferentes sistemas de cultivo.

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