On Seed Transmissibility of Soybean vein necrosis-associated virus in Symptomless Soybean Seedlings

2016 ◽  
Keyword(s):  
Soybean Seedlings ◽  
Seed Transmissibility ◽  
Vein Necrosis

On Seed Transmissibility of Soybean vein necrosis-associated virus in Symptomless Soybean Seedlings

2016 ◽  
Vol 17 (3) ◽  
pp. 184-184
Author(s):  
M. R. Hajimorad
Keyword(s):  
Virus Infection ◽  
Soybean Variety ◽  
Soybean Seedlings ◽  
Seed Transmissibility ◽  
Vein Necrosis

A letter regarding a recent PLoS One paper, in which Groves et al (2016) claims that Soybean vein necrosis-associated virus (SVNaV) was seed transmissible in symptomless seedlings derived from a seed lot of a field-grown soybean variety with symptoms indicative of virus infection. Accepted for publication 28 July 2016.

scholarly journals Response to “On Seed Transmissibility of Soybean vein necrosisassociated virus in Symptomless Soybean Seedlings”

2016 ◽  
Vol 17 (3) ◽  
pp. 185-185
Author(s):  
D. L. Smith
Keyword(s):  
Virus Infection ◽  
Soybean Variety ◽  
Soybean Seedlings ◽  
Seed Transmissibility ◽  
Vein Necrosis

A response to M. R. Hajimorad's letter regarding a recent PLoS One paper, in which Groves et al (2016) claims that Soybean vein necrosis-associated virus (SVNaV) was seed transmissible in symptomless seedlings derived from a seed lot of a field-grown soybean variety with symptoms indicative of virus infection. Accepted for publication 28 July 2016.

scholarly journals The Use of Electrostatic Field to Improve Soybean Seed Germination in Organic Production

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1473
Author(s):  
Zlatica Mamlic ◽  
Ivana Maksimovic ◽  
Petar Canak ◽  
Goran Mamlic ◽  
Vojin Djukic ◽  
...  
Keyword(s):  
Seed Germination ◽  
Electrostatic Field ◽  
Seed Quality ◽  
18Th Century ◽  
Soybean Seed ◽  
Organic Production ◽  
Initial Growth ◽  
Physical Treatment ◽  
Soybean Seedlings ◽  
Dark Green

Soybean production in the system of organic agriculture is not very demanding, and this has been well documented both through experimental results and commercial production. However, one of the biggest problems in organic production is the lack of adequate pre-sowing treatments. Therefore, the aim of this study was to examine the effect of the electrostatic field. This is a physical treatment that was first used for seed treatment in the 18th century but has mostly been neglected since then. Seeds of five soybean genotypes with differently colored seed coats (yellow, green, dark green, brown, and black) were included in this study. The seeds were exposed to different values of direct current (DC) with the following voltages: 0 V (control), 3 V, 6 V, and 9 V, to which the seeds were exposed for 0 min (control), 1 min, and 3 min. After exposing the seeds to the electric field, the physiological properties of seeds and seedlings at the first stage of growth were evaluated. The results show that the effect of the electrostatic field on seed quality depends on the genotype, voltage, and exposure time. The application of DC can be a suitable method for improving seed germination and the initial growth of soybean seedlings. In addition, the results indicate that it is necessary to adjust the DC treatment (voltage and duration of exposure of seeds) to particular genotypes since inadequate treatments may reduce the quality of seeds.

Two-dimensional Imaging of Ultraweak Photon Emission from Germinating Soybean Seedlings with a Highly Sensitive CCD Camera

1997 ◽  
Vol 65 (3) ◽  
pp. 535-537 ◽  
Author(s):  
Masaki Kobayashi ◽  
B. Devaraj ◽  
Masashi Usa ◽  
Yukina Tanno ◽  
Motohiro Takeda ◽  
...  
Keyword(s):  
Photon Emission ◽  
Ccd Camera ◽  
Two Dimensional ◽  
Soybean Seedlings ◽  
Highly Sensitive

scholarly journals Role of Soybean mosaic virus–Encoded Proteins in Seed and Aphid Transmission in Soybean

2013 ◽  
Vol 103 (9) ◽  
pp. 941-948 ◽  
Author(s):  
Sushma Jossey ◽  
Houston A. Hobbs ◽  
Leslie L. Domier
Keyword(s):  
Mosaic Virus ◽  
Seed Quality ◽  
Soybean Mosaic Virus ◽  
Seed Transmission ◽  
Aphid Transmission ◽  
Plant Introduction ◽  
Sequence Motif ◽  
Coding Region ◽  
Encoded Proteins ◽  
Seed Transmissibility

Soybean mosaic virus (SMV) is seed and aphid transmitted and can cause significant reductions in yield and seed quality in soybean (Glycine max). The roles in seed and aphid transmission of selected SMV-encoded proteins were investigated by constructing mutants in and chimeric recombinants between SMV 413 (efficiently aphid and seed transmitted) and an isolate of SMV G2 (not aphid or seed transmitted). As previously reported, the DAG amino acid sequence motif near the amino terminus of the coat protein (CP) was the major determinant in differences in aphid transmissibility of the two SMV isolates, and helper component proteinase (HC-Pro) played a secondary role. Seed transmission of SMV was influenced by P1, HC-Pro, and CP. Replacement of the P1 coding region of SMV 413 with that of SMV G2 significantly enhanced seed transmissibility of SMV 413. Substitution in SMV 413 of the two amino acids that varied in the CPs of the two isolates with those from SMV G2, G to D in the DAG motif and Q to P near the carboxyl terminus, significantly reduced seed transmission. The Q-to-P substitution in SMV 413 also abolished virus-induced seed-coat mottling in plant introduction 68671. This is the first report associating P1, CP, and the DAG motif with seed transmission of a potyvirus and suggests that HC-Pro interactions with CP are important for multiple functions in the virus infection cycle.

scholarly journals Characterization of Gmhsp26-A, a stress gene encoding a divergent heat shock protein of soybean: heavy-metal-induced inhibition of intron processing.

1988 ◽  
Vol 8 (3) ◽  
pp. 1113-1122 ◽  
Author(s):  
E Czarnecka ◽  
R T Nagao ◽  
J L Key ◽  
W B Gurley
Keyword(s):  
Amino Acid ◽  
Heat Shock ◽  
Amino Acid Sequence ◽  
Genomic Sequence ◽  
Stress Protein ◽  
Initiation Site ◽  
Gene Encoding ◽  
S1 Nuclease ◽  
Soybean Seedlings ◽  
Nuclease Mapping

We determined the DNA sequence and mapped the corresponding transcripts of a genomic clone containing the Gmhsp26-A gene of soybean. This gene is homologous to the previously characterized cDNA clone pCE54 (E. Czarnecka, L. Edelman, F. Schöffl, and J. L. Key, Plant Mol. Biol. 3:45-58, 1984) and is expressed in response to a wide variety of physiological stresses including heat shock (HS). S1 nuclease mapping of transcripts and a comparison of the cDNA sequence with the genomic sequence indicated the presence of a soybean seedlings with either CdCl2 or CuSO4. Analysis of the 5' termini of transcripts indicated the presence of one major and at least two minor start sites. In each case, initiation occurred 27 to 30 base pairs downstream from a TATA-like motif, and thus each initiation site appears to be promoted by the activity of a separate subpromoter. The three subpromoters are all associated with sequences showing low homology to the HS consensus element of Drosophila melanogaster HS genes and are differentially induced in response to various stresses. Within the carboxyl-terminal half of the protein, hydropathy analysis of the deduced amino acid sequence indicated a high degree of relatedness to the small HS proteins. A comparison of the primary amino acid sequence of hsp26-A with sequences of the small HS proteins suggested that this stress protein is highly diverged and may therefore be specialized for stress adaptation in soybean.

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