scholarly journals Association of DNA biosynthesis with planting value enhancement in hydroprimed maize seeds

2021 ◽  
Author(s):  
Heena Rasool Mir ◽  
Shiv Kumar Yadav ◽  
Sezai Ercisli ◽  
Asma A. Al-Huqail ◽  
Dina A. Soliman ◽  
...  
Keyword(s):  
Maize Seeds ◽  
Dna Biosynthesis

Moisture Variation and Model Verification of Wheat and Maize Seeds under Different Storage Conditions

2011 ◽  
Vol 37 (1) ◽  
pp. 158-164
Author(s):  
Jing WANG ◽  
Xiao-Li LI ◽  
Peng JIANG ◽  
Feng-Long TIAN ◽  
Wen-Qian HOU ◽  
...  
Keyword(s):  
Storage Conditions ◽  
Model Verification ◽  
Maize Seeds ◽  
Moisture Variation

Effect of Topography on Maize Grains Elemental Profile: A Chemometric Approach

2020 ◽  
Vol 16 (8) ◽  
pp. 1079-1087
Author(s):  
Jorgelina Z. Heredia ◽  
Carlos A. Moldes ◽  
Raúl A. Gil ◽  
José M. Camiña
Keyword(s):  
Cluster Analysis ◽  
Discriminant Analysis ◽  
Linear Discriminant Analysis ◽  
Microwave Plasma ◽  
Emission Spectrometry ◽  
Linear Discriminant ◽  
Maize Seeds ◽  
Elemental Profile ◽  
Mineral Profile ◽  
Topographic Characteristics

Background: The elemental composition of maize grains depends on the soil, land and environment characteristics where the crop grows. These effects are important to evaluate the availability of nutrients with complex dynamics, such as the concentration of macro and micronutrients in soils, which can vary according to different topographies. There is available scarce information about the influence of topographic characteristics (upland and lowland) where culture is developed with the mineral composition of crop products, in the present case, maize seeds. On the other hand, the study of the topographic effect on crops using multivariate analysis tools has not been reported. Objective: This paper assesses the effect of topographic conditions on plants, analyzing the mineral profiles in maize seeds obtained in two land conditions: uplands and lowlands. Materials and Methods: The mineral profile was studied by microwave plasma atomic emission spectrometry. Samples were collected from lowlands and uplands of cultivable lands of the north-east of La Pampa province, Argentina. Results: Differentiation of maize seeds collected from both topographical areas was achieved by principal components analysis (PCA), cluster analysis (CA) and linear discriminant analysis (LDA). PCA model based on mineral profile allowed to differentiate seeds from upland and lowlands by the influence of Cr and Mg variables. A significant accumulation of Cr and Mg in seeds from lowlands was observed. Cluster analysis confirmed such grouping but also, linear discriminant analysis achieved a correct classification of both the crops, showing the effect of topography on elemental profile. Conclusions: Multi-elemental analysis combined with chemometric tools proved useful to assess the effect of topographic characteristics on crops.

scholarly journals Phytase-Producing Rahnella aquatilis JZ-GX1 Promotes Seed Germination and Growth in Corn (Zea mays L.)

2021 ◽  
Vol 9 (8) ◽  
pp. 1647
Author(s):  
Gui-E Li ◽  
Wei-Liang Kong ◽  
Xiao-Qin Wu ◽  
Shi-Bo Ma
Keyword(s):  
Seed Germination ◽  
Plant Growth ◽  
Biomass Accumulation ◽  
Root Surface ◽  
Phosphorus Concentration ◽  
Maize Seedlings ◽  
Total Phosphorus Concentration ◽  
Rahnella Aquatilis ◽  
Maize Seeds

Phytase plays an important role in crop seed germination and plant growth. In order to fully understand the plant growth-promoting mechanism by Rahnella aquatilis JZ-GX1，the effect of this strain on germination of maize seeds was determined in vitro, and the colonization of maize root by R. aquatilis JZ-GX1 was observed by scanning electron microscope. Different inoculum concentrations and Phytate-related soil properties were applied to investigate the effect of R. aquatilis JZ-GX1 on the growth of maize seedlings. The results showed that R. aquatilis JZ-GX1 could effectively secrete indole acetic acid and had significantly promoted seed germination and root length of maize. A large number of R. aquatilis JZ-GX1 cells colonized on the root surface, root hair and the root interior of maize. When the inoculation concentration was 107 cfu/mL and the insoluble organophosphorus compound phytate existed in the soil, the net photosynthetic rate, chlorophyll content, phytase activity secreted by roots, total phosphorus concentration and biomass accumulation of maize seedlings were the highest. In contrast, no significant effect of inoculation was found when the total P content was low or when inorganic P was sufficient in the soil. R. aquatilis JZ-GX1 promotes the growth of maize directly by secreting IAA and indirectly by secreting phytase. This work provides beneficial information for the development and application of R. aquatilis JZ-GX1 as a microbial fertilizer in the future.

Improving the identification of haploid maize seeds using convolutional neural networks

Crop Science ◽  
2021 ◽  
Author(s):  
Felipe Sabadin ◽  
Giovanni Galli ◽  
Ronaldo Borsato ◽  
Raysa Gevartosky ◽  
Gabriela Romêro Campos ◽  
...  
Keyword(s):  
Neural Networks ◽  
Convolutional Neural Networks ◽  
Maize Seeds

scholarly journals Sarocladium and Lecanicillium Associated with Maize Seeds and Their Potential to Form Selected Secondary Metabolites

Biomolecules ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 98
Author(s):  
Lidia Błaszczyk ◽  
Agnieszka Waśkiewicz ◽  
Karolina Gromadzka ◽  
Katarzyna Mikołajczak ◽  
Jerzy Chełkowski
Keyword(s):  
Large Subunit ◽  
Solid Substrate ◽  
Rrna Gene ◽  
Decenoic Acid ◽  
Bioactive Substances ◽  
Lecanicillium Lecanii ◽  
Maize Seeds ◽  
Internally Transcribed Spacer ◽  
First Time

The occurrence and diversity of Lecanicillium and Sarocladium in maize seeds and their role in this cereal are poorly understood. Therefore, the present study aimed to investigate Sarocladium and Lecanicillium communities found in endosphere of maize seeds collected from fields in Poland and their potential to form selected bioactive substances. The sequencing of the internally transcribed spacer regions 1 (ITS 1) and 2 (ITS2) and the large-subunit (LSU, 28S) of the rRNA gene cluster resulted in the identification of 17 Sarocladium zeae strains, three Sarocladium strictum and five Lecanicillium lecanii isolates. The assay on solid substrate showed that S. zeae and S. strictum can synthesize bassianolide, vertilecanin A, vertilecanin A methyl ester, 2-decenedioic acid and 10-hydroxy-8-decenoic acid. This is also the first study revealing the ability of these two species to produce beauvericin and enniatin B1, respectively. Moreover, for the first time in the present investigation, pyrrocidine A and/or B have been annotated as metabolites of S. strictum and L. lecanii. The production of toxic, insecticidal and antibacterial compounds in cultures of S. strictum, S. zeae and L. lecanii suggests the requirement to revise the approach to study the biological role of fungi inhabiting maize seeds.

scholarly journals Physiological quality and gene expression related to heat-resistant proteins at different stages of development of maize seeds

2013 ◽  
Vol 12 (3) ◽  
pp. 3630-3642 ◽  
Author(s):  
T. Andrade ◽  
E.V.R. Von Pinho ◽  
R.G. Von Pinho ◽  
G.E. Oliveira ◽  
V. Andrade ◽  
...  
Keyword(s):  
Gene Expression ◽  
Stages Of Development ◽  
Heat Resistant ◽  
Maize Seeds ◽  
Physiological Quality

The Aeration-Dependent Effect of Vitamin B12on DNA Biosynthesis in Methylobacterium dichloromethanicum

Microbiology ◽  
2004 ◽  
Vol 73 (2) ◽  
pp. 134-138 ◽  
Author(s):  
I. V. Danilova ◽  
N. V. Doronina ◽  
Yu. A. Trotsenko ◽  
A. I. Netrusov ◽  
E. P. Ryzhkova (Iordan)
Keyword(s):  
Dependent Effect ◽  
Dna Biosynthesis ◽  
Methylobacterium Dichloromethanicum

Chitosan coating on bean and maize seeds: release of agrochemical fungicide and post-storage condition

2021 ◽  
Vol 43 ◽  
Author(s):  
Nancy Araceli Godínez-Garrido ◽  
Juan Gabriel Ramírez-Pimentel ◽  
Jorge Covarrubias-Prieto ◽  
Francisco Cervantes-Ortiz ◽  
Artemio Pérez-López ◽  
...  
Keyword(s):  
Seed Germination ◽  
Defense Mechanisms ◽  
Germination Rate ◽  
Storage Condition ◽  
Germination Percentage ◽  
Negative Effects ◽  
Retention Capacity ◽  
Chitosan Coating ◽  
Maize Seeds ◽  
Germination Speed

Abstract: Chitosan is a biopolymer obtained from deacetylation of chitin; it has multiple applications in agriculture as an antifungal, soil conditioner, inducer of defense mechanisms, fruits postharvest coating, leaves and seeds, among others. The objective in this research was to evaluate the effect of chitosan coatings mixed with fungicide (dithiocarbamate) on the germination and germination speed of bean and maize seeds in storage and to determine the retention capacity of the fungicide in the coated seeds under different times of imbibition. Two coating treatments at concentrations of 0.1 and 0.5% chitosan in water, two coatings treatments at 0.1 and 0.5% chitosan supplemented with 0.5% fungicide and a coating without chitosan using only 0.5% fungicide in water were used in bean and maize seed; and as control seeds imbibed in distilled water were used; after treatments, germination percentage and germination speed were determined, also fungicide release were determined at 0, 1, 2 and 6 h of imbibition, and the effect of storage time on germination and germination speed was determined at 30, 60, 90, 120, 150 and 180 days of storage at 4 °C and 45% relative humidity. The fungicide release effect was determined by inhibiting Fusarium oxysporum conidia germination. There were no negative effects of coatings on seed germination after storage. The treatment that provided both greater retention of the fungicidal agent and released it gradually, was 0.5% chitosan mixed with fungicide concentration. Chitosan coating seeds mixed with fungicide do not cause negative changes in seed germination or germination rate.

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