scholarly journals Seed priming with sodium nitroprusside attenuates the effects of water deficit on soybean seedlings

2019 ◽  
Vol 10 (1) ◽  
pp. 176-184
Author(s):  
Marina Alves Gavassi ◽  
Lucas Aparecido Gaion ◽  
Carolina Cristina Monteiro ◽  
Joel Cabral Santos ◽  
Rogério Falleiros Carvalho
Keyword(s):  
Nitric Oxide ◽  
Sodium Nitroprusside ◽  
Water Deficit ◽  
Field Capacity ◽  
Seed Priming ◽  
Carotenoid Biosynthesis ◽  
Soybean Seeds ◽  
Initial Development ◽  
Soybean Seedlings ◽  
Fundamental Part

Considering that water deficit is one of the main environmental factors responsible for low soybean yield and that nitric oxide (NO) has been shown to be a fundamental part of plant defense signaling during stress, the aim of the present study was to evaluate the effect of seed priming with nitric oxide on the induction of water deficit tolerance during the initial development of soybean. Thus, seeds were treated with 0 (water only), 50, 100 or 250 μmol.L-1 sodium nitroprusside for 6 hours. Additionally, untreated seeds were used. After drying, the seeds were placed in containers filled with a commercial substrate mixture and vermiculite and irrigated to 100% and 50% field capacity. Biometric and biochemical evaluations (pigment and proline contents) were performed after 14 days. It was concluded that pretreatment of soybean seeds with 50 to 250 μmol.L-1 SNP attenuated the effects of water deficit on stem growth, leaf area, and shoot dry matter and induced carotenoid biosynthesis. The accumulation of proline in the leaves was pronounced in the treatments with 100 and 250 μmol.L-1 SNP, while 100 μmol.L-1 SNP induced proline accumulation in the roots.

scholarly journals Effect of the storage of soybean seeds treated with agrochemicals on the physiological quality and on the seedlings morphology

2020 ◽  
Vol 6 ◽  
pp. 1-8
Author(s):  
João Pedro Garcia Nogueira ◽  
Danúbia Aparecida Costa Nobre ◽  
Guilherme Ferreira Alves ◽  
Éder Matsuo ◽  
Willian Rodrigues Macedo
Keyword(s):  
Seed Treatment ◽  
Storage Time ◽  
Soybean Seeds ◽  
Initial Development ◽  
Soybean Seedlings ◽  
Anthranilic Diamide ◽  
Seedling Length ◽  
Physiological Quality ◽  
The One

Seed treatment is the most efficient technique for controlling pests and pathogens that can influence the initial development of the crop. However, storing treated seeds may damage the physiological quality. Thus, the objective of this study was to evaluate the influence of storage on the physiological quality of treated soybean seeds and on the morphology of soybean seedlings. The treatments were carried out with Fludioxonil, Imidacloprid and Anthranilic Diamide, in the dosage of 200, 150 and 100 mL of the commercial product 100 kg of seeds, respectively, from the cultivar BRSMG752S. The experimental designs used were randomized blocks (greenhouse) and completely randomized (laboratory), in a simple factorial 4x4scheme, with 4 sowing times (30, 20, 10 and 0 days after treatments) and 4 treatments (3 products and untreated seeds) with 4 repetitions. The treatment of soybean seeds with Anthranilic Diamide submitted to different storage periods was the one with the closest physiological quality to the treatment without application of agrochemicals. The soybean seeds treated with Imidacloprid showed a reduction in physiological quality with the storage time, reduction (in general) in the root length and presented a lower seedling length at 20 days of storage.

scholarly journals Corynespora cassiicola in soybean seeds – incidence and transmission

2020 ◽  
Vol 36 ◽  
Author(s):  
Augusto César Pereira Goulart ◽  
Carlos Mitinori Utiamada
Keyword(s):  
Seed Germination ◽  
Transmission Rate ◽  
Seedling Emergence ◽  
Point Of View ◽  
Soybean Seeds ◽  
Corynespora Cassiicola ◽  
Initial Development ◽  
Soybean Seedlings ◽  
Target Spot ◽  
Seed Pathology

The fungus Corynespora cassiicola, causal agent of target spot in soybeans, has been considered, from the seed pathology point of view, a seed-borne pathogen of limited importance. Therefore, little importance has been given to the role of the seeds in the transmission of this pathogen. The objectives of this study were to determine the incidence of C. cassiicola in soybean seeds and evaluate the effects of this seed-borne pathogen, inoculated in the seeds, in relation to physiological and epidemiological parameters. The experiments were carried out at TAGRO and Embrapa Western Agriculture under lab (blotter test and seed germination test) and greenhouse conditions (growing on test). The fungus C. cassiicola was detected in 11.3% of the 639 seed samples analyzed, with an average incidence of 0.91% and maximum of 8.5%. The transmission of C. cassiicola from the seeds to above-ground parts of soybean seedlings was demonstrated, by pathogen establishment on the cotyledon, showing circular lesions with concentric rings, reddish-brown in the center and surrounded by a yellowish green halo, as a typical symptoms of target spot. Reddish-brown lesions on the roots and stem of the seedlings were also observed. Considering a sample seed with 66.0% of C. cassiicola incidence, the symptomatic transmission based on cotyledon symptoms was 42.2%, corresponding to a transmission rate of 2.4:1. This is the first report, in a quantified way, about the transmission of C. cassiicola from the seeds to above-ground parts of soybean seedlings. When compared to non-inoculated seeds, seed germination, seedling emergence and seedling initial development were influenced by the presence of the pathogen in the seeds, with the lowest values being observed when the seeds were inoculated.

scholarly journals Seed Treatment with α-Tocopherol Regulates Growth and Key Physio-Biochemical Attributes in Carrot (Daucus carota L.) Plants under Water Limited Regimes

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 469 ◽  
Author(s):  
Abdul Hameed ◽  
Nudrat Aisha Akram ◽  
Muhammad Hamzah Saleem ◽  
Muhammad Ashraf ◽  
Shakeel Ahmed ◽  
...  
Keyword(s):  
Water Deficit ◽  
Seed Treatment ◽  
Total Phenolics ◽  
Field Capacity ◽  
Seed Priming ◽  
Alpha Tocopherol ◽  
Water Deficit Stress ◽  
Defense System ◽  
Daucus Carota L ◽  
Growth Attributes

The influence of seed priming with varying levels (50 and 100 mg L−1) of alpha-tocopherol (Toc) was investigated in carrot plants under water-deficit conditions. For this purpose, two cultivars of carrot, DC4 and DC90, were selected and subjected to well-watered (100% field capacity (FC)) and water-deficit stress (50% FC). After 21 days of water-deficit conditions, a significant suppression was observed in shoot and root fresh and dry weights, their lengths, chlorophyll a, b and total contents, and total soluble proteins (TSP). However, an up-regulatory effect of water stress was observed on the concentrations of glycinebetaine (GB), hydrogen peroxide (H2O2), malondialdehyde (MDA), ascorbic acid (AsA), total phenolics as well as the activities of catalase (CAT) and peroxidase (POD) enzymes. Exogenous application of alpha-tocopherol was effective in reducing the accumulation of H2O2 and MDA contents and improving all growth attributes, contents of chlorophyll, proline, GB, AsA, total phenolics, TSP, and the activities of CAT and POD enzymes. Of both carrot cultivars, cv. DC4 had better performance in terms of growth attributes, whereas the response of the two cultivars was similar in all other attributes varying water regimes. Overall, it is suggested that seed priming with 100 mg L−1 Toc was effective in improving plant growth attributes, osmoprotectants and the oxidative defense system of carrot plants under water-deficit conditions.

scholarly journals The Effect of Mineral Supplementation on the Physiological Quality, Enzymes Activity and the Soybean Seedlings Development

2020 ◽  
Vol 8 (4) ◽  
pp. 678
Author(s):  
Gerusa Massuquini Conceição ◽  
Thomas Newton Martin ◽  
Luciane Almeri Tabaldi ◽  
Glauber Monçon Fipke ◽  
Charleston Dos Santos Lima
Keyword(s):  
Seed Treatment ◽  
Nutrient Content ◽  
Guaiacol Peroxidase ◽  
Soybean Seeds ◽  
Nutritional Content ◽  
Initial Development ◽  
Soybean Seedlings ◽  
Mineral Supplementation ◽  
Physiological Quality

The quality of soybean seeds is influenced by the amount of nutrients that are available for the germination and initial development of the seedlings. Thus, the aim of this research was to evaluate the influence of the nutritional content of the seeds and mineral supplementation via seed treatment on physiological quality, enzymatic activity and initial development of soybean seedlings. We assessed soybean seeds from two lots with low and high nutritional content, submitted or not to mineral supplementation via seed treatment. The physiological quality of seeds was assessed by the germination test and first germination count. The initial development of seedlings was evaluated by the tests of length and root system volume, shoot length, and cotyledons, roots and shoot dry matter. It was also determined the activity of α-amylase in cotyledons, acid phosphatase (APase) and guaiacol peroxidase (POD) in the roots and shoot. Mineral supplementation via seed treatment positively influenced the physiological quality and development of seedlings, and the activity of α-amylase in the cotyledons, POD and APase enzymes in the shoot from the low nutrient lot. Low nutrient seeds have characteristics of soybean seedling production similar to those of high nutrient content by using mineral supplementation via seeds.

Effects of sodium nitroprusside(a donor of nitric oxide) on development of porcine preantral follicle cultured in vitro

2011 ◽  
Vol 37 (1) ◽  
pp. 55-59
Author(s):  
Qing QUAN ◽  
Yong TAO ◽  
Xiao-rong ZHANG ◽  
Gui-dong YAO ◽  
Jin-ju WANG
Keyword(s):  
Nitric Oxide ◽  
Sodium Nitroprusside ◽  
Preantral Follicle

Effects of the Nitric Oxide Donor Sodium Nitroprusside on Intracellular pH and Contraction in Hypertrophied Myocytes

Circulation ◽  
1997 ◽  
Vol 95 (9) ◽  
pp. 2303-2311 ◽  
Author(s):  
Nobuhiko Ito ◽  
Josef Bartunek ◽  
Kenneth W. Spitzer ◽  
Beverly H. Lorell
Keyword(s):  
Nitric Oxide ◽  
Sodium Nitroprusside ◽  
Intracellular Ph ◽  
Nitric Oxide Donor

Effect of nitric oxide on Sertoli cell microtubule of piglets

2009 ◽  
Vol 6 (3) ◽  
pp. 257-263 ◽  
Author(s):  
Yang Li ◽  
Wang Xian-zhong ◽  
Yang Meng-bo ◽  
Zhang Jia-hua
Keyword(s):  
Nitric Oxide ◽  
Enzyme Activity ◽  
Protein Kinase ◽  
Cell Viability ◽  
Sodium Nitroprusside ◽  
Sertoli Cell ◽  
Sertoli Cells ◽  
High Concentration ◽  
Treatment Results ◽  
Anti Oxidant

AbstractTo illustrate the effect of nitric oxide (NO) on the microtubules of Sertoli cells (SC), SCs of piglets were treated with sodium nitroprusside (SNP). Changes in cell viability, anti-oxidant activity, enzyme activity and p38 mutagen-activated protein kinase (p38MAPK) activation were detected. The results were as follows. A low concentration of NO can keep SC microtubule and cell viability normal, and a high concentration of NO could increase p38MAPK activation, decrease anti-oxidant activity and transferrin secretion, and destroy the structure and distribution of the microtubules. The results suggest that SNP treatment results in an increase in NO in SCs and decreased cell anti-oxidant activity. The high concentration of NO destroys cell microtubules by activating p38MAPK.

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