EFEITO DA SALINIDADE NA GERMINAÇÃO E CRESCIMENTO DE MUDAS DE Macroptilium lathyroides (L.) Urb

2020 ◽  
pp. 100-110
Author(s):  
Ivina Beatriz Menezes Farias Farias ◽  
Oriel Herrera Bonilla ◽  
Natália Morena Fernandes Soltys ◽  
Francisca Renata Alves de Lima ◽  
Sarah Carvalho de Farias ◽  
...  
Keyword(s):  
Macroptilium Lathyroides

scholarly journals Heliotropism and water availability effects on flowering dynamics and seed production in Macroptilium lathyroides

2006 ◽  
Vol 28 (2) ◽  
pp. 45-52 ◽  
Author(s):  
Armando Martins dos Santos ◽  
Luis Mauro Gonçalves Rosa ◽  
Lucia Brandão Franke ◽  
Carlos Nabinger
Keyword(s):  
Seed Production ◽  
Water Availability ◽  
Yield Components ◽  
Seed Weight ◽  
Field Capacity ◽  
Leaf Movements ◽  
Independent Effects ◽  
Total Seed ◽  
Macroptilium Lathyroides ◽  
Response To Water

The experiment was carried out in pots in a glasshouse, with one plant per pot and nine repetitions per treatment. The treatments consisted of free or restricted leaves, submited to 90-100% or 60-70% soil field capacity (FC). Only independent effects of water availability or leaf movement were observed on yield components. Plants under well-watered conditions and with freely orienting leaves were taller, and had a larger number of ramifications. The greater development favored the setting of a higher number of inflorescences per plant in these treatments. This behavior resulted in a high number of flowers, green and mature legumes per plant, thus resulting in high seed production which was the most evident response to water availability. Although individual seed weight was higher in the water stress treatment, total seed production was higher for well-watered plants, with no statistically significant effect of leaf movements.

scholarly journals Detecting bean golden yellow mosaic virus in bean breeding lines and in the common legume weed Macroptilium lathyroides in Puerto Rico.

1969 ◽  
Vol 85 (3-4) ◽  
pp. 165-176
Author(s):  
Lydia I. Rivera-Vargas ◽  
Vilmaris Bracero-Acosta ◽  
James S. Beaver ◽  
Dan E. Purcifull ◽  
Jane E. Polston ◽  
...  
Keyword(s):  
Puerto Rico ◽  
Mosaic Virus ◽  
Yellow Mosaic Virus ◽  
Phaseolus Vulgaris L ◽  
Breeding Lines ◽  
Golden Yellow ◽  
Enzymelinked Immunosorbent Assay ◽  
The Common ◽  
Polymerase Chain ◽  
Macroptilium Lathyroides

Bean golden yellow mosaic virus (BGYMV) is a geminivirus transmitted by whiteflies (Genus: Bemisia). This virus causes significant fosses in common bean (Phaseolus vulgaris L.). Serological techniques such as enzymelinked immunosorbent assay (ELISA) have been widely used for detection of viruses. We evaluated existing monoclonal antibodies (3F7,2G5 and 5C5) for the detection of BGYMV isolates in bean fines in Puerto Rico. Monoclonal antibody 3F7 was the most effective in detecting the virus in tissues of line DOR 364 and susceptible cuftivars Top Crop and Quest. However, it was not effective in the detection of BGYMV in lines of DOR 303, which showed typical symptoms. Sampfes from Macroptilium lathyroides, a weed that might be a possible reservoir of the virus, were also tested for viraf infection. ELISA tests were inconclusive for detection of geminiviruses in M. lathyroides. Polymerase Chain Reaction (PCR) was also used to complement BGYMV diagnosis in M. lathyroides and in bean lines that showed symptoms but were negative for the ELfSA test. Two sets of primers, specific for Begomovirus such as BGYMV, were used in PCR experiments. Using PCR, we were able to detect the virus in the line DOR 303 and in M. lathyroides tissues.

Influence of intra-row plant spacing, phosphorus application and growth stage on the forage, seed yields and quality of phasey bean (Macroptilium lathyroides) in subhumid area of Nigeria

2021 ◽  
Vol 31 (1) ◽  
pp. 45-50
Author(s):  
A. T. Omokanye ◽  
J. T. Amodu ◽  
S. O. Onifade
Keyword(s):  
Production Systems ◽  
Fertilizer Application ◽  
Plant Spacing ◽  
Growing Seasons ◽  
Application Rates ◽  
P Fertilizer ◽  
P Application ◽  
Macroptilium Lathyroides ◽  
Seed Yields ◽  
Phosphorus Application

Forage, seed yields and herbage chemical composition of phasey bean Macroptilium lathyroides) were investigated at 3 intra-row plant spacings (15, 30 and 45cm between plants; 50 cm between roms), 4 phosphorus (P) fertilizer application rates (O), 50, 100 and 750 kg/ha P) and 5 harvest stages (uncut control, 6, 9, 12 and 15 weeks post sowing) in two growing seasons at Shika in northern Nigeria. The least intra-row plant spacing (15cm) produced higher (p<0.01) total DM vield (1.50 t/ha) than wider spacings. The proportion of leaf was least (40 %) in the widest spacing compared with other spacings (59-62 %). The P-fertilized plots produced 58-60% more total DM vields than the unfertilized plots and total DM yields increased with advanced plant growth. The highest percentage (61-63) of leaf was recorded from 6 to 12 weeks post sowing. Nitrogen level in herbage increased (p<0.05) with increased intra-row plant spacing and P application. Phosphorus and Calcium. Levels in herbage did not respond to intra-row plant spacing but increased with P application. The Ca:P ratios at the harvest stages were between 1:1 and 6:1. The highest seed yields (198 and 188 kg/ha) were recorded respectiely in the least intra-row plant spacing and the application of 100 kg Piha. Supplementation of calves on grasses/cereal stovers with phasey bean hay in a sustainable crop livestock production systems is suggested.

Transmission and pathogenicity of papaya virus E: insights from an experimental papaya orchard

Plant Disease ◽  
2021 ◽  
Author(s):  
Juan F Cornejo-Franco ◽  
Edison Gonzalo Reyes-Proaño ◽  
Dimitre Mollov ◽  
Joseph Mowery ◽  
Diego Fernando Quito-Avila
Keyword(s):  
Mosaic Virus ◽  
Bemisia Tabaci ◽  
Carica Papaya ◽  
Virus Transmission ◽  
Ringspot Virus ◽  
Mixed Infections ◽  
Papaya Ringspot Virus ◽  
Greenhouse Experiments ◽  
Virus Prevalence ◽  
Macroptilium Lathyroides

A study was conducted to investigate epidemiological aspects of papaya virus E (PpVE), a cytorhabdovirus commonly found in papaya (Carica papaya L.) plantings of Ecuador. Besides papaya, PpVE was found in three Fabaceae weeds, including Rhynchosia minima, Centrosema plumieri and Macroptilium lathyroides; the latter being the species with the highest virus prevalence. Greenhouse experiments showed that in M. lathyroides, single infections of PpVE induce only mild leaf mosaic, whereas in mixed infections with cowpea severe mosaic virus, PpVE contributes to severe mosaic. In papaya, PpVE did not induce noticeable symptoms in single or mixed infections with papaya ringspot virus. Transmission experiments confirmed that whiteflies (Bemisia tabaci) transmit PpVE in a semi-persistent, non-propagative manner.

scholarly journals Two Newly Described Begomoviruses of Macroptilium lathyroides and Common Bean

2003 ◽  
Vol 93 (7) ◽  
pp. 774-783 ◽  
Author(s):  
A. M. Idris ◽  
E. Hiebert ◽  
J. Bird ◽  
J. K. Brown
Keyword(s):  
Common Bean ◽  
Mosaic Virus ◽  
Dna Sequences ◽  
Western Hemisphere ◽  
Yellow Mosaic Virus ◽  
Nucleotide Identity ◽  
Caribbean Region ◽  
Golden Yellow ◽  
The Caribbean ◽  
Macroptilium Lathyroides

Macroptilium lathyroides, a perennial weed in the Caribbean region and Central America, is a host of Macroptilium yellow mosaic Florida virus (MaYMFV) and Macroptilium mosaic Puerto Rico virus (MaMPRV). The genomes of MaYMFV and MaMPRV were cloned from M. lathyroides and/or field-infected bean and the DNA sequences were determined. Cloned A and B components for both viruses were infectious when inoculated to M. lathyroides and common bean. Comparison of the DNA sequences for cloned A and B components with well-studied begomovirus indicated that MaMPRV (bean and M. lathyroides) and MaYMFV (M. lathyroides) are unique, previously undescribed begomo-viruses from the Western Hemisphere. Phylogenetic analysis of viral A components indicated that the closest relative of MaYMFV are members of the Bean golden yellow mosaic virus (BGYMV) group, at 76 to 78% nucleotide identity, whereas the closest relative for the A component of MaMPRV was Rhynchosia golden mosaic virus at 78% nucleotide identity. In contrast, BGYMV is the closest relative for the B component of both MaYMFV and MaMPRV, with which they share ≈68.0 and ≈72% identity, respectively. The incongruent taxonomic placement for the bipartite components for MaMPRV indicates that they did not evolve entirely along a common path. MaYMFV and MaMPRV caused distinctive symptoms in bean and M. lathyroides and were transmissible by the whitefly vector and by grafting; however, only MaYMFV was mechanically transmissible. The experimental host range for the two viruses was similar and included species within the families Fabaceae and Malvaceae, but only MaYMFV infected Malva parviflora and soybean. These results collectively indicate that MaMPRV and MaYMFV are new, previously undescribed species of the BGYMV group, a clade previously known to contain only strains and isolates of BGYMV from the Caribbean region that infect Phaseolus spp. Both MaYMFV and MaMPRV may pose an economic threat to bean production in the region.

scholarly journals Genetic Diversity Among Geminiviruses Associated with the Weed Species Sida spp., Macroptilium lathyroides, and Wissadula amplissima from Jamaica

Plant Disease ◽  
1997 ◽  
Vol 81 (11) ◽  
pp. 1251-1258 ◽  
Author(s):  
Marcia E. Roye ◽  
Wayne A. McLaughlin ◽  
Medhat K. Nakhla ◽  
Douglas P. Maxwell
Keyword(s):  
Genetic Diversity ◽  
Amino Acid ◽  
Mosaic Virus ◽  
Amino Acid Sequences ◽  
Yellow Mosaic Virus ◽  
Weed Species ◽  
Degenerate Primers ◽  
Sequence Comparisons ◽  
The Common ◽  
Macroptilium Lathyroides

Genetic diversity among geminiviruses associated with three common weeds in Jamaica was studied using digoxigenin-labeled geminiviral DNA probes, polymerase chain reaction with degenerate primers for DNA-A and DNA-B, nucleic acid sequencing, and derived amino acid sequences. Geminiviruses with bipartite genomes were found in Sida spp., Macroptilium lathyroides, and Wissadula amplissima. The geminiviruses detected in Sida spp. and M. lathyroides were nearly identical and were both designated Sida golden mosaic geminivirus (SidGMV-JA), whereas the geminivirus in W. amplissima was sufficiently different to be designated Wissadula golden mosaic geminivirus (WGMV). Nucleotide sequence comparisons of the common regions and the N-terminal regions of the AC1 (rep) and AV1 ORFs, together with the derived amino acid sequence comparisons of the N-terminal parts of BC1 and BV1 ORFs were used to determine their similarities to other geminiviruses. SidGMV-JA was most similar to potato yellow mosaic geminivirus (PYMV). We propose that these two geminiviruses (SidGMV-JA and PYMV) define a new geminivirus cluster, the potato yellow mosaic virus (PYMV) cluster. WGMV was most similar to members of the Abutilon mosaic virus cluster but is not likely to be included in the Abutilon phylogenetic group because of the divergent sequence of the common region. These results indicate that geminiviruses infecting some weeds in Jamaica are distinct from crop-infecting geminiviruses in Jamaica and define a new geminivirus cluster.

scholarly journals DNA Analysis Confirms Macroptilium lathyroides as Alternative Host of Bean golden yellow mosaic virus

Plant Disease ◽  
2003 ◽  
Vol 87 (9) ◽  
pp. 1022-1025 ◽  
Author(s):  
V. Bracero ◽  
L. I. Rivera ◽  
J. S. Beaver
Keyword(s):  
Sequence Analysis ◽  
Nucleotide Sequence ◽  
Mosaic Virus ◽  
Yellow Mosaic Virus ◽  
Nucleotide Sequence Analysis ◽  
Alternative Host ◽  
Degenerate Primers ◽  
Viral Dna ◽  
Golden Yellow ◽  
Macroptilium Lathyroides

The leguminous weed Macroptilium lathyroides is considered a potential host of the Bean golden yellow mosaic virus (BGYMV; BGMV = Mesoamerican isolates). To determine if M. lathyroides could be a host for BGYMV, an infectivity cycle was established between this weed and Phaseolus vulgaris. Virus transmission was carried out using the whitefly, Bemisia argentifolli, as a vector. Inoculated plants of both species were examined for symptoms such as mosaic, stunting, and leaf distortion. P. vulgaris and M. lathyroides showed golden yellow mosaic symptoms during all infectivity cycle stages. Symptomatic plants of both species were tested for BGYMV using polymerase chain reaction (PCR) and nucleotide sequence analysis. Two degenerate primers sets were used for PCR to detect viral DNA: PAL1v1978/PAR1c715 and PCRc2/PBL12039. PCR analysis using primers PCRc2/PBL12039 amplified viral DNA for component B from both plant species. Nucleotide sequence analysis revealed a 93% identity between the virus isolated from M. lathyroides and the Puerto Rican isolate of BGYMV. These results confirmed that M. lathyroides could serve as an alternative host of BGYMV and that an infectivity cycle of BGYMV could possibly occur between P. vulgaris and M. lathyroides in Puerto Rico.

scholarly journals Cribado de la actividad antimicrobiana de plantas panameñas de la familia Fabaceae

2015 ◽  
Vol 8 (2) ◽  
Author(s):  
Leandra Gómez Leija ◽  
Carmen Espino Castillero ◽  
Estela Guerrero De León ◽  
Juan Morán Pinzón ◽  
José Luis López Pérez ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Bacillus Subtilis ◽  
Klebsiella Pneumoniae ◽  
Macroptilium Lathyroides

<span>Extractos metanólicos de seis plantas pertenecientes a la familia Fabaceae, Albizia adinocephala (J.D.Sm.) Britt. &amp; Rose, Dalbergia brownei (Jacq.) Schinz, Diplotropis purpurea (Rich.) Amshoff, Machaeriumsp., Macroptilium lathyroides (L.) Urb. y de Ormosia coccinea (Aubl.) Jacks, fueron evaluados por el método de dilución en agar en busca de propiedades antimicrobianas. Albizia adinocephala mostró una marcada actividad frente a cepas de Staphylococcus aureus y Staphylococcus aureus resistente a la meticilina (SARM) a concentraciones de 250 y 125 µg/mL, respectivamente; a 500µg/mL, inhibió marcadamente a Escherichia coli y Bacillus subtilis. La actividad de Ormosia coccinea frente a Klebsiella pneumoniae y Staphylococcus aureus fue marcada a 250µg/mL y demostró una actividad entre moderada y marcada frente a cepas resistentes de Klebsiella pneumoniae productora de carbapenemasa (KPC) y SARM (1000 y 500 µg/mL, respectivamente). Machaerium sp. produjo una marcada actividad frente a todas las cepasGram positivas empleadas, resaltando su capacidad para inhibir a SARM (1000µg/mL). De Diplotropis purpurea y Macroptilium lathyroides es preciso resaltar su actividad frente a Klebsiella pneumoniae y Bacillus subtilis, respectivamente. Debido a su capacidad para inhibir SARM, Albizia adinocephala, Machaerium sp. y Ormosia coccinea, que además inhibió KPC, son las especies más interesantes para futuros estudios biodirigidos encaminados a aislar e identificar los principios bioactivos.</span>

scholarly journals Germination of Macroptilium lathyroides seeds as a function of the presence of salts on the substrate

2020 ◽  
Vol 11 (2) ◽  
pp. 62-68
Author(s):  
Marcia De Souza Almeida da Silva ◽  
Oscar Mitsuo Yamashita ◽  
Ana Aparecida Bandini Rossi ◽  
Marco Antonio Camillo de Carvalho ◽  
Ivone Vieira da Silva ◽  
...  
Keyword(s):  
Weed Management ◽  
Dry Weight ◽  
Tolerance Limit ◽  
Shoot Length ◽  
Integrated Weed Management ◽  
Gradual Reduction ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Macroptilium Lathyroides ◽  
Different Levels

Weeds are species evolutionarily adapted to development in areas of disorders caused by man or not. Adoption of practices to control and integrated weed management, it is essential the knowledge related to germination and environmental factors that interfere with seed germination processes. In this context, the present work aimed to evaluate the behavior of Macroptilium lathyroides seeds in response to different levels of osmotic potential induced NaCl and CaCl2 solutions. The experiment has been organized in a completely randomized design in a factorial 2 x 6, consisting of two salts in concentrations 6 with 4 repetitions. The seeds were kept in on moistened gerboxes germibox roles with NaCl and CaCl2 solutions at the potentials of 0.0; - 0.2; - 0.4; -0.6; -0.8 and -1.0 MPa. Daily reviews by germination, IVG and end ten days were determined shoot length, root length and plantlet dry weight were performed. The results demonstrated that salt stress induced by NaCl and CaCl2 provokes a gradual reduction in germination of M. lathyroides there is no tolerance limit. The NaCl The salt was more critical root development and of the seedlings dry weight.

The effect of sulphur on the growth, sulphur and nitrogen concentrations, and critical sulphur concentrations of some tropical and temperate pasture legumes

1977 ◽  
Vol 28 (5) ◽  
pp. 807 ◽  
Author(s):  
CS Andrew
Keyword(s):  
Growth Responses ◽  
Flowering Stage ◽  
Critical Concentrations ◽  
Pasture Legumes ◽  
Diagnostic Indices ◽  
Stylosanthes Humilis ◽  
Nitrogen Concentrations ◽  
Macroptilium Atropurpureum ◽  
Macroptilium Lathyroides ◽  
Pasture Legume

Seven tropical and five temperate pasture legume species were grown in pots of three sulphur-deficient soils with varying additions of sulphate. Growth responses and the chemical composition of the plant tops were recorded, and from the latter, tentative critical concentrations of sulphur were established. These were compared with data from two field sites (six species only). Critical concentrations of sulphur in the tops of species sampled at the immediate pre-flowering stage of growth were: Macroptilium lathyroides 0.17%, Macroptilium atropurpureum 0.15%, Desmodium intortum 0.17%, Desmodium uncinatum 0.17%, Stylosanthes humilis 0.14%, Lotononis bainesii 0.15%, Glycine wightii 0.17%, Trifolium repens 0.18%, Trifolium semipilosum 0.17%, Medicago sativa 0.20%, Medicago truncatula 0.20% and Medicago denticulata 0.20%. Sulphate concentration and nitrogen/sulphur ratios were investigated as alternative diagnostic indices, but were not considered as suitable as total sulphur indices for the assessment of sulphur deficiency in legumes. Nitrogen concentrations in the plant tops were increased by sulphate supply, and excellent correlations were established between the nitrogen and sulphur concentrations in the plant tops.

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