Biostimulants and Microorganisms Boost the Nutritional Composition of Buckwheat (Fagopyrum esculentum Moench) Sprouts

This study investigated the influence of biological control agents and plant growth promoters on the chemical composition of the cultivars Panda and Kora buckwheat sprouts. Before sowing, seeds were soaked in solutions containing Bacillus subtilis bacteria, Pythium oligandrum oospores, Ecklonia maxima algae extract, and/or nitrophenols. The sprouts of the Panda displayed higher levels of protein, fat, and dietary fiber fractions than the Kora. Measurable effects of biological control agents (BCAs) and plant growth promoters (PGPs) on the chemical composition of sprouts were also confirmed. Soaking the seeds in a solution containing P. oligandrum oospores resulted in a decrease in the level of crude ash in sprouts, while the addition of nitrophenols increased the level of both crude ash and protein. We also found statistically significant effects of interactions between the cultivar and BCA and/or PGP for each of the examined components.

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Effects of application of plant growth promoters, biological control agents and microbial soil additives on photosynthetic efficiency, canopy vegetation indices and yield of common buckwheat (Fagopyrum esculentum Moench)

Biological Agriculture & Horticulture ◽

10.1080/01448765.2021.1918579 ◽

2021 ◽

pp. 1-18

Author(s):

Robert Witkowicz ◽

Edyta Skrzypek ◽

Katarzyna Gleń-Karolczyk ◽

Mateusz Krupa ◽

Wioletta Biel ◽

...

Keyword(s):

Biological Control ◽

Plant Growth ◽

Photosynthetic Efficiency ◽

Vegetation Indices ◽

Fagopyrum Esculentum ◽

Biological Control Agents ◽

Common Buckwheat ◽

Growth Promoters ◽

Plant Growth Promoters ◽

Fagopyrum Esculentum Moench

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Biotechnology and Environmental applications of Trichoderma spp.

Research Journal of Pharmacognosy and Phytochemistry ◽

10.52711/0975-4385.2021.00025 ◽

2021 ◽

pp. 149-157

Author(s):

Waill A. Elkhateeb ◽

Marwa O. Elnahas ◽

Ghoson M. Daba ◽

Abdel-Nasser A. Zohri

Keyword(s):

Biological Control ◽

Agricultural Soils ◽

Hydrolytic Enzymes ◽

Biological Control Agents ◽

Growth Promoters ◽

Trichoderma Spp ◽

Trichoderma Species ◽

Plant Growth Promoters ◽

Different Strains ◽

Soil Borne Fungi

The genus Trichoderma is multicultural soil-borne fungi found in different ecosystems. They are highly successful colonizers of their habitats. Genus Trichoderma is capable of dealing with various environments such as compost, agricultural soils, rhizosphere, and waste material. Therefore, different strains of Trichoderma have been applied in agriculture, bioremediation, waste management, and biotechnology. Many Trichoderma species act as biological control agents and plant growth promoters. Additionally, the genus Trichoderma is a new fungal source for the production of cyclosporin A as well as various hydrolytic enzymes with industrial importance.

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Novel Insights into the Effect of Pythium Strains on Rapeseed Metabolism

Microorganisms ◽

10.3390/microorganisms8101472 ◽

2020 ◽

Vol 8 (10) ◽

pp. 1472

Author(s):

Kateřina Bělonožníková ◽

Kateřina Vaverová ◽

Tomáš Vaněk ◽

Miroslav Kolařík ◽

Veronika Hýsková ◽

...

Keyword(s):

Plant Growth ◽

Biological Control Agent ◽

Effective Strain ◽

Hydrolytic Enzymes ◽

Biochemical Properties ◽

Control Agent ◽

Growth Promoters ◽

Pythium Oligandrum ◽

Defense Compounds ◽

Plant Growth Promoters

Pythium oligandrum is a unique biological control agent. This soil oomycete not only acts as a mycoparasite, but also interacts with plant roots and stimulates plant defense response via specific elicitors. In addition, P. oligandrum can synthetize auxin precursors and stimulate plant growth. We analyzed the secretomes and biochemical properties of eleven Pythium isolates to find a novel and effective strain with advantageous features for plants. Our results showed that even closely related P. oligandrum isolates significantly differ in the content of compounds secreted into the medium, and that all strains secrete proteins, amino acids, tryptamine, phenolics, and hydrolytic enzymes capable of degrading cell walls (endo-β-1,3-glucanase, chitinase, and cellulase), exoglycosidases (especially β-glucosidase), proteases, and phosphatases. The most different strain was identified as a not yet described Pythium species. The changes in metabolism of Brassica napus plants grown from seeds coated with the tested Pythium spp. were characterized. Enhanced levels of jasmonates, ethylene precursor, and salicylic acid may indicate better resistance to a wide variety of pathogens. Glucosinolates, as defense compounds against insects and herbivores, were enhanced in young plants. Altogether, P. oligandrum strains varied in their life strategies, and either they could perform equally as plant growth promoters and mycoparasites or they had developed one of these strategies better.

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AKTIVITAS SIDEROFOR BACILLUS SUBTILIS SEBAGAI PEMACU PERTUMBUHAN DAN PENGENDALI PATOGEN TANAMAN TERUNG

JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA ◽

10.23960/j.hptt.217170-178 ◽

2017 ◽

Vol 17 (2) ◽

pp. 170 ◽

Cited By ~ 1

Author(s):

Nur Prihatiningsih ◽

Heru Adi Djatmiko ◽

Puji Lestari

Keyword(s):

Biological Control ◽

Bacillus Subtilis ◽

Plant Growth ◽

Biological Control Agent ◽

Control Agent ◽

Leaf Number ◽

Growth Promoters ◽

Root Volume ◽

Volume Weight ◽

Plant Growth Promoters

Siderophore activity of Bacillus subtilis as plant growth promoters and biological control agent of eggplants pathogens. The aims of this research were to identify the siderophores of B. subtilis, to assess its activities as plant growth promoters and biological control agent of eggplants pathogens. Five isolates of B. subtilis i.e.B46, B209, B211, B298 and B 315 grown on SDCASA medium. The isolate which showed the best siderophores production was then further studied on its ability as a growth promoter on eggplants in two soil types with different Fe content. The inhibitory test was conducted against two kinds of pathogens, namely Colletotrichum sp. and Ralstonia solanacearum. The greenhouse experiment was arranged using a factorial completely randomized block design. The first factor was the B. subtilis (B. subtilis B298 and without B. subtilis B298), second factor was the type of soil (Ultisol and Andisol). The variables measured were Fe uptake by plants, plant growth parameters on eggplant i.e. height, leaf number, root length, root volume, weight of fresh and dried shoot as well as fresh and dry root, percentage of inhibition to fungal and bacterial eggplant pathogens. The results showed that the five isolates of B. subtilis were able to produce siderophores as catecholate and hydroxamate types. The best siderophore production was showed by B. subtilis B298. The ability of B. subtilis B298 in accelerating the growth of plants was indicated by the increased of uptake Fe, plant height, leaf number, root volume, weight of dried plants by 45.62%, 25.48%, 19.45%, 41.10% and 34.89% respectively. The inhibition to the fungal and bacterial eggplant pathogens best shown by the isolates of B. subtilis B298 with 55.4% and 22 mm respectively.

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Microorganisms and Biostimulants Impact on the Antioxidant Activity of Buckwheat (Fagopyrum esculentum Moench) Sprouts

Antioxidants ◽

10.3390/antiox9070584 ◽

2020 ◽

Vol 9 (7) ◽

pp. 584 ◽

Cited By ~ 1

Author(s):

Robert Witkowicz ◽

Wioletta Biel ◽

Edyta Skrzypek ◽

Joanna Chłopicka ◽

Katarzyna Gleń-Karolczyk ◽

...

Keyword(s):

Antioxidant Activity ◽

Antioxidant Capacity ◽

Water Soluble ◽

Strongly Correlated ◽

Growth Promoters ◽

Pythium Oligandrum ◽

Antioxidant Power ◽

Plant Growth Promoters ◽

Ferric Reducing Antioxidant Power ◽

Fagopyrum Esculentum Moench

The study analyzes the influence of plant growth promoters and biological control agents on the chemical composition and antioxidant activity (AA) in the sprouts of buckwheat. The AA of cv. Kora sprouts was higher than cv. Panda, with 110.0 µM Fe2+/g (FRAP—Ferric Reducing Antioxidant Power), 52.94 µM TRX (Trolox)/g (DPPH—1,1-diphenyl-2-picrylhydrazyl), 182.7 µM AAE (Ascorbic Acid Equivalent)/g (Photochemiluminescence—PCL—ACW—Water-Soluble Antioxidant Capacity) and 1.250 µM TRX/g (PCL—ACL—Lipid-Soluble Antioxidant Capacity). The highest AA was found in the sprouts grown from seeds soaked in Ecklonia maxima extract and Pythium oligandrum (121.31 µM Fe2+/g (FRAP), 56.33 µM TRX/g (DPPH), 195.6 µM AAE/g (PCL—ACW) and 1.568 µM TRX/g (PCL—ACL). These values show that the antioxidant potential of buckwheat sprouts is essentially due to the predominant hydrophilic fraction of antioxidants. The AA of the sprouts was strongly correlated with total polyphenol content.

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