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2 edition of Potato virus X: mixtures of strains and the leaf area and yield of infected potatoes found in the catalog.

Potato virus X: mixtures of strains and the leaf area and yield of infected potatoes

John Grieve Bald

Potato virus X: mixtures of strains and the leaf area and yield of infected potatoes

by John Grieve Bald

  • 192 Want to read
  • 33 Currently reading

Published by H.E. Daw, government printer in Melbourne .
Written in English

    Subjects:
  • Potatoes -- Diseases and pests.,
  • Viruses.

  • Edition Notes

    Statementby J. G. Bald.
    Classifications
    LC ClassificationsSB608.P8 B27
    The Physical Object
    Pagination32 p.
    Number of Pages32
    ID Numbers
    Open LibraryOL6466688M
    LC Control Number44006156
    OCLC/WorldCa5130284

      Figure 12 Potato virus X Figure 13 Potato virus Y Tomato a. Tomato leaf curl virus (TLCV): The presence of the disease in the western hills was for the first time, suspected in in CL (now NCL 1) a popular rainy season tomato variety at Kudule, Baglung.   Virus-induced gene silencing (VIGS) is an optimal tool for functional analysis of genes in plants, as the viral vector spreads throughout the plant and causes reduced expression of selected gene over the whole plant. Potato (Solanum tuberosum) is one of the most important food crops, therefore studies performing functional analysis of its genes are very important.

    Introduction. Potato virus Y (PVY) has emerged in the past decade as a serious threat to potato production worldwide, decreasing potato yield and affecting tuber quality (Kerlan, ; Blanchard et al., ; Gray et al., ).The spread of recombinant strains of PVY inducing potato tuber necrotic ringspot disease (PTNRD) in susceptible potato cultivars (Beczner et al., ; Boonham et al. strains are recognized (PVYO, PVYN and PVYC). The most damaging one at present is PVYN that causes ringspots on the tubers. In addition to transmitted by aphids, it can be transmitted via infected seed tubers. Therefore virus can cause heavy yield losses and are a serious threat to potato production (Valkonen,

      Potato tuber necrosis in the form of spraing symptoms is caused by infection with Potato mop‐top virus (PMTV) or Tobacco rattle virus (TRV); spraing has become more important in the Swedish potato crop production. In this study, the presence in Sweden of three potato‐infecting viruses associated with necrotic symptoms in tubers was demonstrated: PMTV, TRV and Tobacco necrosis virus .   In Pakistan Mughal et al. () reported potato virus A S M X Y potato leaf roll virus and potato mop top virus in autumn spring and summer potato crop. Among them the increasing trend of PVY is becoming a threat for potato in main potato growing areas by causing 80% yield losses and no molecular evidence of PVY was reported from Pakistan.


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Potato virus X: mixtures of strains and the leaf area and yield of infected potatoes by John Grieve Bald Download PDF EPUB FB2

Bald JC, Potato virus X: mixtures of strains and the leaf area and yield of infected potatoes. Bulletin of CSIRO, Australia, No. Banttari EE; Goodwin PH, Detection of potato viruses S, X, and Y by enzyme-linked immunosorbent assay on nitrocellulose membranes (Dot-ELISA).

Plant Disease, 69(3) The effect of potato virus X on growth and yield. Austral. Jour. Sci. 4: – Google Scholar. Potato virus X: mixtures of strains and the leaf area and yield of infected potatoes. Counc. Sci. Ind. Res. Bull. Google Scholar. — Development of differences in yield between FX and virus X-infected Up-to-Date potatoes Cited by: 8.

Bald, J. Potato virus X: Mixtures of strains and the leaf area and yield of infected potatoes. Coun. Sci. Ind. Res. Bull. Google ScholarCited by: 8. Tiziana Mascia, Donato Gallitelli, in Plant Virus–Host Interaction, Abstract. Mixed infections of Cucumber mosaic virus (CMV), Potato virus Y (PVY), and CMV-satRNA in tomato are frequent in nature and exhibit different disease phenotypes that are the outcomes of synergistic and antagonistic interactions between the causative agents.

Such mixtures of interactions make classic strains. Faint/latent mosaic Potato virus X W hen occasional plants are infected, yield loss A new disease of potato in northern India caused by a strain of Tomato leaf curl New Delhi virus.

Article. Therefore, a high percentage of tuber yield losses have been reported: between 10 and 80% for Potato virus Y (PVY) (Bokx and Huttinga ), 10% for Potato virus X (PVX) and 30 to 50% for Potato. Potato diseases caused by plant viruses In the fields, potatoes can be infected by many different plant viruses that can lead to yield reduction and loss of tuber quality.

Potato virus diseases often can be diagnosed by some easily visible symptoms, such as mosaic patterns on leaves, stunting of the plant, leaf and tuber malformations (Hane and. Potato virus Y (PVY) is one of the oldest known plant viruses, and yet in the past 20 years it emerged in the United States as a relatively new and very serious problem in potato.

The virus exists as a complex of strains that induce a wide variety of foliar and tuber symptoms in potato, leading to yield reduction and loss of tuber quality.

Figure ^—Potato leaves showing symptoms of potato virus X 48 Figure —Potato plant infected with leafroll virus 49 Figure —Phloem necrosis (net necrosis) in tuber following current-season infec- tion with leafroll virus 50 Figure —Leaflet of Green Mountain potato plant infected with mild mosaic virus.

This image is an example of Potato Leaf Roll Virus in a Goldrush plant; its leaves are beginning to curve upwards. Assessing Symptoms of Blackleg (Pectobacterium atrosepticum) When the plant is infected from diseased seed potatoes, the stems will show an inky black decay, extending up the stem from the seed piece.

Potato (Solanum tuberosum L.) is one of the most important vegetable crops in human nutrition having potential of vital food is the fourth largest food crop cultivated in more than countries throughout the world and has gained a status of globally traded commodity (He et al., ).Potato is infected by at least 40 viruses and 2 viroids (Jeffries et al., ) and mixed viral.

The potato, like all vegetatively reproduced crops, may be infected by a great number of virus and virus-like diseases, which are carried through the tubers to the next generation and can be spread rapidly during the season by mechanical means or via insect and nematode carriers called 'vectors'.

claims itself as the chief potato production unit in the whole world [1]. Drastic decrease by 30– 50% in yield occurs when infected potatoes produce diseased seeds of transmittable viruses [2]. Potatoes are elevated than wheat and rice in terms of manufacturing and calories per unit area and it gives more yields than cereals economically.

Potato Virus X (PVX, genus Potexvirus) so it is probably a good idea to keep some separation between dahlias and potatoes.

There is a potato strain (TSVP) found in Peru, which presumably infects potato more easily. which includes yellow spots and rings on the leaves.

Yield. Enanismo amarillo disease of Solanum andigena potatoes is caused by potato leaf roll virus. Peng HuaXian, Xi YaDong, Gao Bo, The relation of field resistance and yield in different virus-free potato varieties. Anderson J M, Molecular characterization of Potato leafroll virus, Potato virus A, and Potato virus X isolates from.

Virus diseases determine great losses in potato yield and obtaining potato virus free regenerates becomes very important whilst there are no chemical methods for direct viruses eradication. It was observed that the regeneration percentage from meristem culture depends on the viral strain that infects the donor plant and also in a great measure of the explants size.

In addition to the well-studied potato viruses such as Potato virus X (PVX), Potato virus Y (PVY), and Potato leaf roll virus (PLRV), which cause severe symptoms and yield losses, Potato virus S (PVS) and Potato virus M (PVM) are common but produce mild symptoms, although they also adversely affect yield.

The severe strains of potato virus Y and leaf roll may cause per cent loss in tuber yield while the mild ones like potato virus X, S, A and M may depress the yields by per cent [13,14].

Continuous use of old infected seed stocks upto years bringing down their yielding ability to almost 50 per cent [Table 1] [13,14,15]. Table 1. The potato virus Y (PVY) is considered one of the most important viruses in terms of both economical and biological impact. Potential of using three different Streptomyces spp.

crude filtrates (SCF) to induce of resistance against tuber necrotic strain of potato virus Y (PVYNTN) in four potato cultivars namely, Spunta, Nicola, Selatar, and Diamant, were evaluated.

Potato virus A (PVA), Potato virus S (PVS) and Potato virus M (PVM), are the most important viruses in terms of distribution and their effect on yields.

Other viruses only occur in potato occasionally or locally (Salazar ). Potato virus X (PVX) is one of the main potato viruses infecting potatoes worldwide. PVX can cause yield loss in the. Potato viruses including Potato aucuba mosaic virus (PAMV), Potato leafroll virus (PLRV), Potato virus M (PVM), Potato virus S (PVS) and Potato virus X (PVX) are well known viruses infecting potato and can cause serious economic losses.3) Arracacha virus B, oca strain: 4) Potato black ringspot virus: Group of viruses and virus‐like organisms of Cydonia Mill., Fragaria L., Malus Mill., Prunus L., Pyrus L., Ribes L., Rubus L.

and Vitis L., such as: 1) Blueberry leaf mottle virus: 8) Peach yellows mycoplasm: 2) Cherry rasp leaf virus .INTRODUCTION. Potato (Solanum tuberosum L.) is considered one of the important vegetable crops in the most countries of the potato crop ranks fourth in economic importance after Wheat, Maize and Rice and also the first alternative for grain crops and is used for human consumption, animal feed and as a source of starch, carbohydrates, alcohol and protein (Horton, ).