[X] CLOSEMAIN MENU

  • Archives

  • Categories

    • air pollution (8)
    • Announcements (605)
    • Antibiotic Resistance (44)
    • Antimicrobial (21)
    • Aquaculture (31)
    • Aquatic Organisms (37)
    • Bats (10)
    • Beneficials (59)
    • Biofuels (6)
    • Biological Control (34)
    • Biomonitoring (40)
    • Birds (26)
    • btomsfiolone (1)
    • Bug Bombs (2)
    • Cannabis (30)
    • Centers for Disease Control and Prevention (CDC) (13)
    • Chemical Mixtures (8)
    • Children (117)
    • Children/Schools (240)
    • cicadas (1)
    • Climate (32)
    • Climate Change (90)
    • Clover (1)
    • compost (7)
    • Congress (21)
    • contamination (160)
    • deethylatrazine (1)
    • diamides (1)
    • Disinfectants & Sanitizers (19)
    • Drift (19)
    • Drinking Water (18)
    • Ecosystem Services (19)
    • Emergency Exemption (3)
    • Environmental Justice (169)
    • Environmental Protection Agency (EPA) (554)
    • Events (89)
    • Farm Bill (24)
    • Farmworkers (204)
    • Forestry (6)
    • Fracking (4)
    • Fungal Resistance (8)
    • Goats (2)
    • Golf (15)
    • Greenhouse (1)
    • Groundwater (16)
    • Health care (32)
    • Herbicides (49)
    • Holidays (39)
    • Household Use (9)
    • Indigenous People (6)
    • Indoor Air Quality (6)
    • Infectious Disease (4)
    • Integrated and Organic Pest Management (73)
    • Invasive Species (35)
    • Label Claims (51)
    • Lawns/Landscapes (254)
    • Litigation (346)
    • Livestock (10)
    • men’s health (4)
    • metabolic syndrome (3)
    • Metabolites (8)
    • Microbiata (25)
    • Microbiome (30)
    • molluscicide (1)
    • Nanosilver (2)
    • Nanotechnology (54)
    • National Politics (388)
    • Native Americans (3)
    • Occupational Health (17)
    • Oceans (11)
    • Office of Inspector General (5)
    • perennial crops (1)
    • Pesticide Drift (164)
    • Pesticide Efficacy (12)
    • Pesticide Mixtures (17)
    • Pesticide Residues (188)
    • Pets (36)
    • Plant Incorporated Protectants (2)
    • Plastic (10)
    • Poisoning (21)
    • Preemption (46)
    • President-elect Transition (2)
    • Reflection (1)
    • Repellent (4)
    • Resistance (122)
    • Rights-of-Way (1)
    • Rodenticide (34)
    • Seasonal (3)
    • Seeds (7)
    • soil health (23)
    • Superfund (5)
    • synergistic effects (26)
    • Synthetic Pyrethroids (17)
    • Synthetic Turf (3)
    • Take Action (606)
    • Textile/Apparel/Fashion Industry (1)
    • Toxic Waste (12)
    • U.S. Supreme Court (3)
    • Volatile Organic Compounds (1)
    • Women’s Health (28)
    • Wood Preservatives (36)
    • World Health Organization (12)
    • Year in Review (2)
  • Most Viewed Posts

Daily News Blog

Archive for the 'paldoxins' Category


25
Mar

Researchers Say New Class of Fungicide Is Safer

(Beyond Pesticides, March 25, 2009) Canadian researchers have discovered a new class of fungicides that can bolster a plant’s natural defenses against fungal attack. Unlike conventional fungicides, researchers say these new anti fungal agents, called paldoxins and based on natural plant chemicals, may prove to be safer, more selective and less likely to fall victim to pests becoming resistant. In a report presented at the 237th National Meeting of the American Chemical Society on March 23 in Salt Lake City, Utah, researchers at the University of Saskatchewan, Canada, describe their development of six synthetic versions of the new anti-fungal agent, which works to block fungal enzymes that overwhelm plants’ natural defenses. Plant chemicals, called phytoalexins, are responsible for the defense mechanism exhibited by many plants to kill disease-causing fungi. However, many fungi release enzymes that detoxify, or destroy the phytoalexin, leaving the plant vulnerable to the fungi’s attack. The researchers took advantage of this counterattack strategy by developing anti-fungal agents to block the fungi’s destruction of phytoalexins. Paldoxins are short for phytoalexin detoxification inhibitors. Lead researcher, Soledade Pedras, PhD, and her colleagues discovered these agents after screening broccoli, cauliflower, mustard greens and other plants in the so-called “crucifer family” of […]

Share