Chloropupukeananin (1), the first pupukeanane chloride with highly functionalized tricyclo-[4.3.1.03,7]-decane skeleton and its possible biosynthetic precursors iso-A82775C (2) and pestheic acid (3), have been isolated from the plant endophyte Pestalotiopsis fici. The structure of 1 was determined by NMR spectroscopy and X-ray crystallography. Biogenetically, 1 could be derived from the Diels-A...

New plant growth regulators, named chloroisosulochrin, chloroisosulochrin dehydrate and pestheic acid, have been isolated from the culture filtrate of Pestalotiopsis theae grown on a Raulin-Thom medium. Their structures have been established by spectroscopic and chemical methods. The biological activities of these compounds have been examined using bioassay methods with lettuce and rice seedlings.

Brewer (1958) described the isolation ofa number of fungi from slime samples taken from pulp and paper mills in Eastern Canada, one of the organisms being identified as Truncatella ramulosa (v. Beyma) Steyaert (Syn. Pestalotia ramulosa v. Beyma). In 1959, during a study of a subculture of this organism, we observed crystals in old cultures grown on malt-extract-agar. In a preliminary note Benja...

HPLC-SPE-NMR analysis of a crude extract of fermentation broth of cultured PESTALOTIOPSIS VIRGATULA isolate TC-320 from TERMINALIA CHEBULA Retz. (Combretaceae) disclosed the presence of a simple but unprecedented low-molecular-weight metabolite, 9-hydroxybenzo[ C]oxepin-3[1 H]-one, subsequently isolated by a targeted purification procedure.

Acanthopanax divaricatus, a member of the Araliaceae family, has been used as an invigorant in traditional Korean medicine. During disease monitoring, a stem with small, irregular, brown lesions was sampled at a farm in Cheonan in 2011. The symptoms seen were sunken cankers and reddish-brown needles on the infected twig. The isolated fungal colonies were whitish, having crenated edges and aeria...

feijoa as a fruit crop and ornamental tree is cultivated in the subtropics and warm temperate areas of the world including brazil, united states, new zealand and japan. a new disease with brown rot symptom on fruit occurred in feijoa orchards of northern iran in which it has become popular as a fruit crop. the objective of the present study was isolation and identification of the causal pathoge...

Two new oxysporone derivatives, pestalrone A (1) and pestalrone B (2), along with two known structurally related compounds 3, 4, were from the fermentation broth of the endophytic plant fungus Pestalotiopsis karstenii isolated from stems of Camellia sasanqua. Their structures and relative configurations were elucidated by extensive spectroscopic analysis and comparison of chemical shifts with r...

Four new compounds, including two isocoumarins, pestaloisocoumarins A and B (1, 2), one sesquiterpenoid degradation, isopolisin B (4), and one furan derivative, pestalotiol A (5), together with one known isocoumarin, gamahorin (3), and three chlorinated benzophenone derivatives, pestalachloride B (6), pestalachloride E (7) and a mixture of pestalalactone atropisomers (8a/8b), were isolated from...