Precocene II

Precocene II

CAT N°: 28480
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From 85.00 72.25

Precocene II is a chromene that has been found in A. houstonianum and has anti-juvenile hormone activity.{47615,47616,47617} It inhibits juvenile hormone biosynthesis in isolated spontaneously active cockroach (P. americana) corpora allata when used at concentrations of 1 mM or higher.{47615} Precocene II (8 ?g/cm2 coating in Petri dish) inhibits development of the corpus allatum in newly eclosed female milkweed bugs and causes allatal regression when applied 120 hours post-eclosion in normally developing females.{47616} It induces precocious metamorphosis in milkweed bug second-stage nymphs when applied as a coating to Petri dishes at concentrations of 0.4 and 0.7 ?g/cm2.{47617} Precocene II inhibits ovarian development in various insects, including milkweed bugs, cotton stainers, apple maggots, and Mexican bean beetles. Precocene II also inhibits production of the trichothecene mycotoxin 3-acetyldeoxy nivalenol (3-ADON; Item No. 11429) in F. graminearum (IC50 = 1.2 ?M) without inhibiting fungal growth.{47618}

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