منابع مشابه
Translocation of Photosynthate in Curly Top Virus-infected Tomatoes.
Photosynthate translocation in single leaflets of healthy and curly top virus-infected tomatoes was investigated using (14)C as a marker. The amount of radioactivity found in plant parts not exposed to (14)CO(2) was substantially lower in diseased than in healthy plants. The time lag for the appearance of (14)C in the petiole was considerably longer in the infected plants than in the healthy. T...
متن کاملAcquired Immunity from Curly Top in Tobacco and Tomato'
Since Wingard (^4) ^ reported that tobacco plants that had recovered from severe stages of the ring spot disease failed to show the usual disease symptoms when reinoculated with the ring spot virus, similar reactions have been observed in several other plant viruses, including curly top (4, i^, ^i). Price (la) has presented an extensive and detailed review of this subject. The term ' ^recovery'...
متن کاملCurly top survey in the Western United States.
Curly top in sugar beet continues to be a challenging disease to control in the western United States. To aid in development of host resistance and management options, the curtovirus species composition was investigated by sampling 246 commercial fields along with nursery and field trials in the western United States. DNA was isolated from leaf samples and the species were identified using spec...
متن کاملdetection of volatile compounds of medicinal plants with some nano-sorbents using modified or new methodologies and investigation of antioxidant activity of their methanolic extracts
in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...
Seed Transmission of Beet Curly Top Virus and Beet Curly Top Iran Virus in a Local Cultivar of Petunia in Iran
Beet curly top virus (BCTV) and beet curly top Iran virus (BCTIV) are known as the causal agents of curly top disease in beet and several other dicotyledonous plants in Iran. These viruses are transmitted by Circulifer species, and until now, there has been no confirmed report of their seed transmission. A percentage (38.2-78.0%) of the seedlings developed from the seeds of a petunia local cult...
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ژورنال
عنوان ژورنال: Hilgardia
سال: 1928
ISSN: 0073-2230
DOI: 10.3733/hilg.v03n13p339