Bitter Gourd Yellow Mosaic Virus

The virus renamed as new species Bitter gourd yellow mosaic virus BgYMV was detected in seeds from infected plants and in the grow-out test seedlings by ELISA and virus-specific PCR. This virus was characterized as bitter gourd yellow mosaic virus BGYMV.

Transmission Studies On Viruses Associated With Yellow Mosaic Disease Of Bitter Gourd Springerlink

The seed infectivity was 7916 and transmission rate to seedling was 3205.

Bitter gourd yellow mosaic virus. During a survey in August 2008 a severe yellow mosaic disease was observed on bitter gourd growing in different locations of eastern UP India. There was a severe yield loss in bitter gourd plants due to the infection of BGYMV. Young developing leaves are completely distorted and malformed with reduced size.

In older plants leaves wilt suddenly and vascular bundles in the collar region become yellow or brown. Even a single viruliferous whitefly was able to cause 2000 per. It causes mostly in cucurbits more or less severe yellowing diseases according to the season and cultivar.

Cucurbit aphid-borne yellows virus CABYV was first isolated in southern France in 1988. Naturally bitter gourd has been reported to be infected by many viruses which affects its cultivation. BGYMV causes yellow mosaic disease in bitter gourd.

This virus is mostly confined to the leaves. BGYMV causes yellow mosaic disease in bitter gourd. This disease attains significance because the virus causing this disease is capable of attacking the crop at all stages.

Cassava Monihot esculenta and three weed species viz Acalypha indica L Croton sparsiflorus Bail and Malvastrum coromandelianum L Gracke respectively were found to be the hosts of BGYMV. Bitter gourd Yellow Mosaic Virus BGYMV is a Whitefly transmitted geminivirus. RNA viruses viz Cucumber mosaic virus Takami et al 2006 Papaya ring spot virus Chin and Ahmad 2007 Zucchini yellow mosaic virus Fukumotu et al 1993 Zucchin tigre mosaic virus Romay et al 2014.

Ridge gourd yellow mosaic virus YMV was transmitted to healthy ridge gourd plants only by the whitefly Bemisia tabaci and not through sap inoculation. The incidence of the disease within crops was significant 1020 and symptoms consisted of a severe yellow mosaic and slight curling of leaf tissues. Yellow mosaic virus disease of Ridge gourd caused by begomovirus is a major constraint in cucurbits cultivation.

Suppose you have noticed that your leaves are turning weak and breaking easily then also they require high amounts of potassium. Nitrogen deficiency can also affect the entire life. Yellowing foliage or yellow veins is a clear cut sign of nitrogen deficiency.

Appearing on the leaves in the secondary branches produced at. Natural occurrence of yellow mosaic disease was observed on bitter gourd Momordica charantia. Young leaves of bitter.

Momordica charantia L of the family Cucurbitaceae is one of. A severe yellow mosaic disease with a significant disease incidence was observed on bitter gourd Momordica charantia L during a survey of different loca First report of Pepper leaf curl Bangladesh virus strain associated with bitter gourd Momordica charantia L yellow mosaic disease in India. The virus is transmitted by species of aphids.

The roots are not affected. There was a severe yield loss in bitter gourd plants due to the infection of BGYMV. Depletion of potassium can also cause the leaves to turn yellow in some cases.

It symptoms are irregular yellowish patches on the leaves. In 1998 mosaic virus had destroyed the entire crop of gourd in the region. Association of geminivirus with the disease was investigated through polymerase chain reaction using geminivirus-specific primers and Southern hybridization with a probe prepared from the cloned DNA of a known geminivirus.

This virus disease is mostly confined to the leaves. Yellow mosaic virus disease is one of the most common diseases of bitter gourd. One day while walking through the village Joy saw a few white gourds in the field of a farmer Kannichaye Narayanan which were not affected by this disease.

The farmers whose crops got affected were cultivating the variety released by the Kerala Agricultural University. Bitter gourd Yellow Mosaic Virus BGYMV is a Whitefly transmitted geminivirus. Three sprays of Karathane 6 g in 10 litres of water or Bavistin 1 g litre of water immediately on appearance of initial symptoms at 5-6 days interval controls the disease.

A new seed-transmissible begomovirus in bitter gourd Momordica charantia L 1. In older plants leaves wilt suddenly and vascular bundles in the collar region become yellow or brown. Infected plants had less fruit which were smaller in size as compared with those produced by.

This disease attains significance because the virus causing this disease is capable of attacking the crop at all stages.

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