Common Bean Seed Complements Molybdenum Uptake by Plants from Soil

2011 ◽  
Vol 103 (6) ◽  
pp. 1843-1848 ◽  
Author(s):  
R. F. Vieira ◽  
T. J. Paula ◽  
A. A. Pires ◽  
J. E. S. Carneiro ◽  
G. S. da Rocha
Keyword(s):  
Common Bean ◽  
Bean Seed

scholarly journals Common bean seed vigor affecting crop grain yield

2016 ◽  
Vol 38 (4) ◽  
pp. 365-370 ◽  
Author(s):  
Vitor Henrique Vaz Mondo ◽  
Adriano Stephan Nascente ◽  
Manoel Oliveira Cardoso Neto
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Block Design ◽  
Seedling Emergence ◽  
Research Work ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Bean Seed ◽  
Crop Establishment ◽  
Randomized Block Design

Abstract: Among the factors that affect seedling emergence and crop establishment are seed germination and vigor, which has an important influence on the establishment of the initial plant population and development, and may affect crop yield. Based on this background the objective of this research work was to evaluate the effects of seed vigor of common bean seed lots and its effects on crop grain yield. The treatments consisted of six seed lots of common bean, which were composed by different combinations of high and low vigor seeds. Seed lots were assessed by germination and vigor tests (first count of germination, electrical conductivity and accelerated aging). A field experiment was conducted in a randomized block design, with plots of six lines of five meters and were evaluated for grain yield at harvest. It was concluded that seed vigor affects common bean grain yield; the use of low vigor seeds results in grain yield reductions of up to 20%.

Concentrations of condensed tannins and anthocyanins in common bean seed coats

2010 ◽  
Vol 43 (2) ◽  
pp. 595-601 ◽  
Author(s):  
Aura M. Díaz ◽  
Gina V. Caldas ◽  
Mathew W. Blair
Keyword(s):  
Common Bean ◽  
Condensed Tannins ◽  
Bean Seed ◽  
Seed Coats

scholarly journals Biological control of Fusarium oxysporum f. sp. phaseoli by Trichoderma harzianum and its use for common bean seed treatment

2014 ◽  
Vol 39 (5) ◽  
pp. 384-391 ◽  
Author(s):  
Daniel D. C. Carvalho ◽  
Murillo Lobo Junior ◽  
Irene Martins ◽  
Peter W. Inglis ◽  
Sueli C. M. Mello
Keyword(s):  
Biological Control ◽  
Common Bean ◽  
Fusarium Oxysporum ◽  
Trichoderma Harzianum ◽  
Seed Treatment ◽  
Bean Seed

scholarly journals Ultrafiltration as a simple purification method of a water extract of common bean seed as a natural coagulant

2020 ◽  
Vol 74 (3) ◽  
pp. 211-220
Author(s):  
Jelena Prodanovic ◽  
Bojana Saric ◽  
Marina Sciban ◽  
Dragana Kukic ◽  
Vesna Vasic ◽  
...  
Keyword(s):  
Organic Matter ◽  
Common Bean ◽  
Crude Extract ◽  
Water Extract ◽  
Bean Seed ◽  
Coagulation Activity ◽  
Turbidity Removal ◽  
Molecular Weights ◽  
Natural Coagulants ◽  
Model Water

Natural coagulants from a crude water extract of common bean seed showed very good efficiency of turbidity removal from water of ~89 % under optimal coagulation conditions, which were determined using response surface methodology (RSM). However, they also increased the content of organic matter in treated model water by ~66 %, which is the main drawback of usage of natural coagulants, in general. Thus, ultrafiltration was applied for processing of the crude water extract in order to separate biomolecules, which exhibit the coagulation activity. Four fractions obtained by ultrafiltration were applied in coagulation tests under the same conditions as the crude extract, and the 4th fraction (molecules with molecular weights >30 kDa) with the predominant content of proteins with molecular weights 50 - 60 kDa, achieved almost as high efficiency of turbidity removal (75 %) as the crude extract. At the same time, the content of organic matter in treated water increased just for 16 % in comparison to the blank (model water processed in the same way but without coagulant). After optimization of process parameters by RSM for usage of the 4th fraction, the coagulation activity increased further to 80 %.

Maize and common bean seed exudates mediate part of nonhost resistance to Phytophthora sojae prior to infection

2021 ◽  
Author(s):  
Zhuoqun Zhang ◽  
Yifan Zhao ◽  
Tai An ◽  
Han Yu ◽  
Xiangqi Bi ◽  
...  
Keyword(s):  
Common Bean ◽  
Signaling Pathway ◽  
Soybean Seed ◽  
Arachidonic Acid Metabolism ◽  
Phytophthora Sojae ◽  
Nonhost Resistance ◽  
Bean Seed ◽  
Repellent Effect ◽  
Maize Seed ◽  
Assay Chamber

Phytophthora sojae does not infect nonhost maize (Zea mays) but infects nonhost common bean (Phaseolus vulgaris) under inoculation. Soybean seed exudates participate in mediating host resistance to P. sojae prior to infection. This study aims to elucidate the role of seed exudates in mediating the nonhost resistance to P. sojae prior to infection. The behaviors of P. sojae zoospores in response to the seed exudates were determined using an assay chamber and a concave slide. The proteomes of P. sojae zoospores in response to the seed exudates were analyzed with the tandem mass tag (TMT) method. The key proteins were quantitatively verified by parallel reaction monitoring (PRM). Maize seed exudates exerted a repellent effect on zoospores. This result explains why zoospores sense repelling signaling molecules that weaken and strongly inhibit chemotaxis signals in the phosphatidylinositol signaling pathway and arachidonic acid metabolism pathway. Common bean seed exudates did not exhibit any attraction to the zoospores because the G protein signaling pathway, had no significant change. The proteins protecting the cell membrane structure were significantly downregulated, and the early apoptosis signal glutathione was enhanced in zoospores responding to common bean seed exudates, which resulted in dissolution of the cysts. Maize and common bean seed exudates mediate part of the nonhost resistance to P. sojae via different mechanisms prior to infection. The immunity of maize to P. sojae is due to the repellent effect of maize seed exudates on zoospores. Common bean seed exudates participate in mediating nonhost resistance by dissolving cysts.

scholarly journals Viability of liquid medium-inoculation of Rhizobium etli in planting furrows with common bean

2018 ◽  
Vol 53 (3) ◽  
pp. 394-398
Author(s):  
Dâmiany Pádua Oliveira ◽  
Bruno Lima Soares ◽  
Fábio Aurélio Dias Martins ◽  
Leandro Alex Franceschini ◽  
Bruno Ewerton da Silveira Cardillo ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Liquid Medium ◽  
Common Bean ◽  
Bean Seed ◽  
Rhizobium Etli ◽  
Application Method ◽  
Application Rates ◽  
Reduced Costs ◽  
Liquid Inoculant

Abstract: The objective of this work was to evaluate the viability of liquid medium inoculation of Rhizobium etli in the planting furrow and to certify the efficiency of its strain UFLA 02-100 as a potential inoculant for common bean (Phaseolus vulgaris). The treatments consisted of three application rates of liquid inoculant applied in the planting furrows or in common bean seed, besides two controls without inoculation. The inoculant contained 109 cells of Rhizobium etli mL-1. Regardless of the application method, the yield obtained with the inoculation was equivalent to that of N from urea; however, the application in the furrows, at 0.6 L ha-1, is more advantageous due to the operational practicality and reduced costs.

scholarly journals Biocontrol of seed pathogens and growth promotion of common bean seedlings by Trichoderma harzianum

2011 ◽  
Vol 46 (8) ◽  
pp. 822-828 ◽  
Author(s):  
Daniel Diego Costa Carvalho ◽  
Sueli Corrêa Marques de Mello ◽  
Murillo Lobo Júnior ◽  
Alaerson Maia Geraldine
Keyword(s):  
Common Bean ◽  
Trichoderma Harzianum ◽  
Seed Treatment ◽  
Root Colonization ◽  
Growth Promotion ◽  
Bean Seed ◽  
Seed Health ◽  
Rhizosphere Competence ◽  
Absolute Control ◽  
Plant Length

The objective of this work was to evaluate isolates of Trichoderma harzianum regarding biocontrol of common bean seed-borne pathogens, plant growth promotion, and rhizosphere competence. Five isolates of T. harzianum were evaluated and compared with commercial isolate (Ecotrich), Carboxin+Thiram, and an absolute control. Bean seeds of the cultivar Jalo Precoce, contaminated with Aspergillus, Cladosporium, and Sclerotinia sclerotiorum, were microbiolized with antagonists, and seed health tests were carried out. Isolates were evaluated on autoclaved substrate and in field conditions. Ten days after sowing (DAS), plant length was measured. To test rhizosphere competence, isolates were applied in boxes containing autoclaved washed sand, and root colonization was evaluated at 10 DAS, using five plants per box. The most effective isolates in the seed health tests were: CEN287 and CEN289 to control Aspergillus; the commercial isolate to control Cladosporium; and CEN287 and CEN316 to control S. sclerotiorum. Isolates CEN289 and CEN290 promoted bean growth in greenhouse and field. Seed treatment with T. harzianum reduces the incidence of Aspergillus, Cladosporium, and S. sclerotiorum in 'Jalo Precoce' common bean seeds.

Long-term Survival and Seed Transmission of Acidovorax avenae subsp. citrulli in Melon and Watermelon Seed

2008 ◽  
Vol 9 (1) ◽  
pp. 36 ◽  
Author(s):  
C. C. Block ◽  
L. M. Shepherd
Keyword(s):  
Common Bean ◽  
Plant Pathogen ◽  
Seed Transmission ◽  
Bean Seed ◽  
Term Survival ◽  
Melon Seed ◽  
Bacterial Fruit Blotch ◽  
Watermelon Seed ◽  
Bacterial Plant Pathogen

Seed transmission of A. avenae subsp. citrulli is key in the dissemination of bacterial fruit blotch of cucurbits. This study reports its survival and seed transmission from watermelon and melon seed lots that were more than 30 yr old. The longest previously-reported survival of A. avenae subsp. citrulli was from 19-yr-old watermelon seed and the longest reported survival for any seedborne bacterial plant pathogen was 24 yr for Curtobacterium flaccumfaciens pv. flaccumfaciens from common bean seed. Accepted for publication 19 September 2008. Published 19 December 2008.

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