scholarly journals The effect of potato rugose on the yield of some potato varieties

1961 ◽  
Vol 33 (1) ◽  
pp. 89-100
Author(s):  
Onni Pohjakallio ◽  
Laura Karhuvaara ◽  
Simo Antila
Keyword(s):  
Virus Infection ◽  
Potato Virus ◽  
Potato Plant ◽  
Potato Virus Y ◽  
Tuber Yield ◽  
Virus Disease ◽  
Potato Varieties ◽  
Potato Plants ◽  
Severe Type

The virus disease occurring in the potato varieties Harbinger, Aquila, and King George V was probably the potato rugose caused by potato virus Y (Solanum virus 2). In the variety Harbinger, the degree of strength of the virus disease probably varied as a result of the appearance of different races of potato virus Y. The type of the virus disease did not change from one vegetative generation of the potato to another. In the potato varieties Aquila and King George V, only the severe type of the disease was observed. The severe type of the virus disease reduced the tuber yield of all the potato varieties investigated to a level of 5 to 6 %, and the slight type occurring in the variety Harbinger to an average of 27 % of the normal. The virus infection appeared more frequently in Harbinger than in the variety Aquila. In the summer, when the infection of the potato plant took place, the virus disease reduced its productivity only relatively little. In the following vegetative generation of the diseased potato plants, the degree of their degeneration conclusively displayed itself. Following this, the wakening of the virus diseased plants did not progress further from one vegetative generation to the next.

Expression of the Tomato pot-1 Gene Confers Potato Virus Y (PVY) Resistance in Susceptible Potato Varieties

2021 ◽  
Author(s):  
Chen Zhang ◽  
Kelly A. Zarka ◽  
Daniel G. Zarka ◽  
Jonathan L. Whitworth ◽  
David S. Douches
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Potato Varieties ◽  
Pvy Resistance

Cytological responses of susceptible and extremely resistant potato plants to inoculation with potato virus Y

1999 ◽  
Vol 55 (3) ◽  
pp. 143-150 ◽  
Author(s):  
J. HINRICHS-BERGER ◽  
M. HARFOLD ◽  
S. BERGER ◽  
H. BUCHENAUER
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Potato Plants

scholarly journals Detection and genome characterization of Potato virus Y isolates infecting potato (Solanum tuberosum L.) in La Union (Antioquia, Colombia)

2016 ◽  
Vol 34 (3) ◽  
pp. 317-328 ◽  
Author(s):  
Pablo Gutiérrez S. ◽  
Mauricio Marín M. ◽  
Daniel Muñoz E.
Keyword(s):  
Solanum Tuberosum ◽  
Potato Virus ◽  
Potato Virus Y ◽  
Seed Tuber ◽  
Rt Pcr ◽  
Potato Plants ◽  
Nextgeneration Sequencing ◽  
Prevalent Strain ◽  
Detailed Molecular Analysis

Potato virus Y (PVY) is one of the most severe viruses affecting the production of potato (Solanum tuberosum) in the world. This study presents a detailed molecular analysis using nextgeneration sequencing (NGS), IC-RT-qPCR and RT-PCR on the PVY isolates infecting seed-tubers and foliage of potato plants cv. Diacol-Capiro in La Union (Antioquia, Colombia). Analysis of incidence by IC-RT-qPCR in 15 random leaf samples of three cultivation plots and fifteen sprouting tuber eye-buds reveal infection levels between 13.4 and 80%; a higher incidence of 86.7% was observed in seed-tuber samples with threshold cycle (Ct) values as low as 24.3. Genome assembly from a bulk of foliage samples resulted in a consensus PVY genome (PVY_LaUnionF) of 9,702 nt and 399 polymorphic sites within the polyprotein ORF; while the assembled genome from sprouts of tubers has 9,704 nt (PVY_LaUnionT) and contained only six polymorphic nucleotide sites. Phylogenetic analysis demonstrates that the PVY isolates from leaf samples are in the recombinant PVYNTN group (sequence identity >99%); while those from tuber sprouts are in the PVYN/NTN group with identities above 95%. Sanger sequencing of viral capsid suggests the presence of a third variant related to PVYO, a prevalent strain reported in potato fields worldwide.

scholarly journals Virus elimination in potato through meristem culture followed by thermotherapy

2014 ◽  
Vol 11 (1) ◽  
pp. 71-80 ◽  
Author(s):  
MA Ali ◽  
KM Nasiruddin ◽  
MS Haque ◽  
SM Faisal
Keyword(s):  
Gibberellic Acid ◽  
Potato Virus ◽  
Potato Virus Y ◽  
Combined Treatment ◽  
Meristem Culture ◽  
Virus Elimination ◽  
Potato Varieties ◽  
Virus Indexing ◽  
Plantlet Production ◽  
Benzyl Amino Purine

Virus elimination in potato through meristem culture followed by thermotherapy and virus indexing was studied. Three levels of thermotherapy, viz. 27±1°C (control), 30±1°C and 35±1°C, sixteen combinations of BAP (Benzyl Amino Purine) plus GA3 (gibberellic Acid) concentrations viz. 0.0+0.0 (control), 0.0+0.2, 0.0+0.4, 0.0+0.6, 1.5+0.0, 1.5+0.2, 1.5+0.4, 1.5+0.6, 3.0+0.0, 3.0+0.2, 3.0+0.4, 3.0+0.6 , 4.5+0.0, 4.5+ 0.2, 4.5+0.4 and 4.5+0.6 were used in this study in three potato varieties viz. Diamant, Heera and Lalpakri. Among the thermo therapies, 27±1°C showed the highest (24.55) survival response followed by 30±1°C, 35±1°C, respectively. The poorest (20.47) survival response of meristem derived plantlets was noticed in 35±1°C which gave the highest percentage (43.79) of virus free plantlets followed by 30±1°C. The best (25.85%) survival response was found in Lalpakri and the lowest (19.08%) survivality was recorded in Diamant. The highest (33.27) percentage of PVY (Potato Virus Y) free plantlets was observed in Heera. The combined treatment 3.0 mg L-1 BAP and 0.2 mg L-1 GA3 showed the highest (63.39) percentage of virus free plantlet production followed by 4.5 mg L-1 BAP and 0.2 mg L-1 GA3DOI: http://dx.doi.org/10.3329/sja.v11i1.18376 SAARC J. Agri., 11(1): 71-80 (2013)

scholarly journals Role of the methionine cycle in the temperature‐sensitive responses of potato plants to potato virus Y

2020 ◽  
Vol 22 (1) ◽  
pp. 77-91 ◽  
Author(s):  
Igor Fesenko ◽  
Nadezhda Spechenkova ◽  
Anna Mamaeva ◽  
Antonida V. Makhotenko ◽  
Andrew J. Love ◽  
...  
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Temperature Sensitive ◽  
Potato Plants ◽  
Methionine Cycle

Quantification of mineral oil accumulation and movement in potato plants and its significance in potato virus Y management

2013 ◽  
Vol 70 (8) ◽  
pp. 1243-1248 ◽  
Author(s):  
Manphool Fageria ◽  
Sébastien Boquel ◽  
Gaetan Leclair ◽  
Yvan Pelletier
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Mineral Oil ◽  
Oil Accumulation ◽  
Potato Plants

Role of Hairy Nightshade in the Transmission of Different Potato virus Y Strains on Solanum tuberosum (L.)

2010 ◽  
Vol 11 (1) ◽  
pp. 38 ◽  
Author(s):  
Felix A. Cervantes ◽  
Juan M. Alvarez
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Green Peach Aphid ◽  
Transmission Rate ◽  
Solanum Tuberosum L ◽  
Macrosiphum Euphorbiae ◽  
Invasive Weed ◽  
Potato Plants ◽  
Tuber Necrosis

The complexity of the Potato virus Y (PVY) (Potyviridae: Potyvirus) pathosystem is affected by the presence of several virus strains that differ in their ability to produce tuber necrosis and by the presence of an alternate host that could increase the amount of inoculum in potato fields. Solanum sarrachoides (Sendtner) is an invasive weed from South America present in Pacific Northwest potato agro-ecosystems. It serves as reservoir of PVY and its most efficient vectors: the green peach aphid, Myzus persicae (Sulzer), and the potato aphid, Macrosiphum euphorbiae (Thomas). The role of S. sarracoides as vector and virus reservoir in PVY epidemiology was investigated through a series of laboratory and greenhouse experiments. We studied the symptoms produced in S. sarracoides upon infection with necrotic and non-necrotic strains of PVY and looked at the percentage of infection and titer accumulation of these strains. PVY infection in S. sarrachoides produced symptoms similar to those produced in PVY-infected potato plants. Mottling and yellowing were the main symptoms of infection observed in S. sarrachoides plants, especially by PVYO and PVYNTN infection. Greenhouse transmission studies revealed that PVY-infected S. sarrachoides increased the transmission rate of PVY necrotic strains by M. persicae. The necrotic strain PVYNTN reached higher titer in S. sarrachoides than in potato plants when compared to PVYO and PVYN:O These findings have broadened our understanding of the role and importance of S. sarrachoides in the PVY epidemiology in the potato ecosystems and could potentially be included in the development or optimization of virus management programs. Accepted for publication 15 March 2010. Published 26 May 2010.

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