First report of Oidium piperis on Piper aduncum in Brazil
نویسندگان
چکیده
منابع مشابه
Piper aduncum Fallows in the Lowlands of Papua New Guinea
rimary forest covers about 75% of Papua New Guinea. Every year about 200,000 ha are cleared for commercial operations, including logging, plantations, and subsistence agriculture. The latter mainly takes the form of shifting cultivation. In many parts of the humid lowlands, secondary fallow vegetation is dominated by the shrub Piper aduncum L (see color plate 20). It is not known exactly when a...
متن کاملProtective Effect of Piper aduncum Capsule on DMBA-induced Breast Cancer in Rats
The possible protective effect of Piper aduncum capsule on DMBA (dimethylbenz[α]anthracene)-induced breast cancer in rats was assessed by monitoring the tumor and lung metastases incidence and recording hematological and biochemical parameters and frequency of micronuclei. Mammary carcinogenesis was induced in 36 female Holtzman rats by providing a single subcutaneous injection of DMBA. Oral ad...
متن کاملVolatile chemical constituents of Piper aduncum L and Piper gibbilimbum C. DC (Piperaceae) from Papua New Guinea.
Exhaustive hydro-distillation of the leaves of Piper aduncum and fruits of Piper gibbilimbum (Piperaceae) afforded colorless and pale orange colored oils in 0.35 and 0.30 % yields, respectively. Detailed chemical analysis by GC/MS indicated the volatile constituents of Piper aduncum to be composed of dill apiole (43.3%), beta-caryophyllene (8.2%), piperitione (6.7%) and alpha-humulene (5.1%), w...
متن کاملBiosynthetic Origin of the Isoprene Units in Chromenes of Piper aduncum (Piperaceae)
Estudos metabólicos envolvendo a incorporação de D-glicose-[1-13C] em folhas de Piper aduncum (Piperaceae) mostraram que as vias do mevalonato (MVA) e da triose-piruvato (MEP) estão envolvidas na biossíntese da unidade isoprênica presente no 2,2-dimetil-2H-1-cromeno-6carboxilato de metila (1) e no 2,2-dimetil-8-(3’-metil-2’-butenil)-2H-1-cromeno-6-carboxilato de metila (2). O padrão de incorpor...
متن کاملIdentification of Polyphenols and Anti-Oxidant Capacity of Piper aduncum L
Ethanol extracts of Piper aduncum L. leaves from five sub-regions in the tropical Peruvian rainforest were assessed for polyphenol content utilizing liquid chromatography coupled with mass spectrometry with electrospray ionization (LC-MS-ESI). The anti-oxidant capacity was estimated using a DPPH radical scavenging assay. Additionally, the reducing power (capacity to reduce Fe 3+ to Fe 2+ ), the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant Pathology
سال: 2005
ISSN: 0032-0862,1365-3059
DOI: 10.1111/j.1365-3059.2005.01192.x