Broadleaf
Mostrando 13-16 de 16 artigos, teses e dissertações.
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13. Cell-Wall Changes and Cell Tension in Response to Cold Acclimation and Exogenous Abscisic Acid in Leaves and Cell Cultures.
Freeze-induced cell tensions were determined by cell water relations in leaves of broadleaf evergreen species and cell cultures of grapes (Vitis spp.) and apple (Malus domestica). Cell tensions increased in response to cold acclimation in leaves of broadleaf evergreen species during extracellular freezing, indicating a higher resistance to cell volume change
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14. Cyclohexanedione Herbicides Are Selective and Potent Inhibitors of Acetyl-CoA Carboxylase from Grasses
Biochemical studies of plant species susceptible to the cyclohexanedione herbicides, alloxydim, sethoxydim, and clethodim, have demonstrated that these selective grass herbicides inhibit acetyl-coenzyme A carboxylase, the second enzyme common to both fatty acid and flavonoid biosynthetic pathways. The Kis for the cyclohexanediones tested ranged from 0.02 to
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15. Herbicidal Activity of an Isopropylmalate Dehydrogenase Inhibitor.
Isopropylmalate dehydrogenase (IPMDH) is the third enzyme specific to leucine biosynthesis. It catalyzes the oxidative decarboxylation of 3-isopropylmalate (3-IPM) to 2-ketoisocaproic acid. The partially purified enzyme from pea (Pisum sativum L.) shows a broad pH optimum of 7.8 to 9.1 and has Km values for 3-IPM and NAD of 18 and 40 [mu]M, respectively. O-I
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16. A Technique To Quantify the Population Size and Composition of the Biofilm Component in Communities of Bacteria in the Phyllosphere
The presence of microbial biofilms in the phyllosphere of terrestrial plants has recently been demonstrated, but few techniques to study biofilms associated with living plant tissues are available. Here we report a technique to estimate the proportion of the bacterial population on leaves that is assembled in biofilms and to quantitatively isolate bacteria f
American Society for Microbiology.