Fungi as an Alternative to Agrochemicals to Control Plant Diseases

Emoghene, A O; Futughe, Anthony E.

doi:10.1007/978-3-319-42852-9_3

Cited by 5 publications

(3 citation statements)

References 49 publications

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“…Obviously, chlorosis and necrosis are indications of lead contamination whose incidences increase with metal concentration in the soil. Emoghene and Futughe (2016) also reported leaf chlorosis and necrosis in Paddy plant due to the application of lead while Ezekiel (2015) reported induced deficiency of some ions with the same electrical charge or ion radius such as magnesium and iron to be responsible for leaf chlorosis. Regions of necrotic lesions have also been reported in this study.…”

Section: Progression Of Stress Responses In Test Plantmentioning

confidence: 99%

“…Sewage sludge, agricultural manures, and sea bird manure in natural ecosystems, industrial activities, fuel, and automobile tyres can also be significant metal sources (Ikhajiagbe et al, 2012). Of specific note, mining operations and coal burning usually increases the levels of heavy metal as studied by Emoghene and Futughe (2016). Heavy metals can amass in plants via both root and foliage systems.…”

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confidence: 99%

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Influence of different anionic charges on lead compounds in the remediation of lead by Eleusine indica (Gaertn)

Ikhajiagbe¹,

Ehiarinmwian²,

Omoregie³

2022

jasem

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The study was carried out to investigate the remediative capacity of Eleusine indica in lead-polluted soil. Soil samples were collected near student hostel (hall 5) in the University of Benin. The soil samples were sun dried to constant weight and was pulverized with wooden roller and sieved with a hand sieve of 2 mm mesh size. The sieved soil was spiked with 0.625 g lead nitrate (PbNO3), lead sulphate (PbSO4), lead carbonate (PbCO3), lead acetetrahydrate (PbC2H6) and lead chloride (PbCl2) separately in three replicate using aqueous standard solutions. Tillers of Eleusine Indica were placed in the metal – polluted soil immediately and the experiment was allowed to stay for 15 weeks. The result showed that the uptake efficiency for Eleusine indica in both shoots and roots for lead nitrate was 0.016% and 0.8%, lead sulphate 0.016 % and 0.352 %, lead carbonate 0.064% and 0.496 %, lead acetetrahydrate 0.032 % and 0.688 %, and lead chloride 0.08 % and 0.72 % respectively, indicating that the plant might have sequestered the metal in the soil rather than accumulating it in the leaves. This was evident in the presentation of the metal sequestration factor of over 70 % irrespective of the nature of the metal. Microbial count of soil before and after contamination with lead nitrate was 1.9×104 and 0.4×104 cfu/g indicating a reduction. The study therefore revealed that Eleusine indica is ahigh efficient plant in sequestering lead in polluted soil.

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Section: Progression Of Stress Responses In Test Plantmentioning

confidence: 99%

mentioning

confidence: 99%

Influence of different anionic charges on lead compounds in the remediation of lead by Eleusine indica (Gaertn)

Ikhajiagbe¹,

Ehiarinmwian²,

Omoregie³

2022

jasem

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“…Although agrochemicals enable quick and effective control of plant diseases, their excessive use increases the potential of resistance buildup in plant pathogens (Wang and Cernava 2020;Majeed 2018). In recent years, some promising and eco-friendly alternatives to chemical control have been developed to curtail plant diseases (Barratt et al 2018;Emoghene and Futughe 2016). The use of biological control agents has become a trend owing to global development orientations on use of non-chemical alternatives with less negative impact to the environment.…”

Section: Introductionmentioning

confidence: 99%

Control of Magnaporthe oryzae and Rice Growth Promotion by Bacillus subtilis JN005

Zhu

Zhou

Ren

et al. 2021

J Plant Growth Regul

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It is quite important to develop the microorganism resources with biocontrol capacity for rice blast. This study evaluated Bacillus subtilis JN005 for growth promotion and biocontrol efficacy against Magnaporthe oryzae. Results showed that rice seeds treated with 1 × 107 cfu/mL suspension of B. subtilis JN005 had 16% germination energy, 14% germination rate, 15% germination index, and 270% vigor index compared to those treated with sterile water (control). In pot experiments, the JN005 strain-treated rice plants exhibited notable increase in plant height, root length, stem circumference, and fresh weight, as well as higher concentration of chlorophyll a, chlorophyll b, and total chlorophyll in rice leaves. Rice leaves inoculated with the JN005 strain resulted in increased activities of defense-related enzymes, including peroxidase (POD), phenylalanine ammonialyase (PAL), superoxide dismutase (SOD), and catalase (CAT) compared to the water and the M. oryzae-inoculated treatments. In vitro inoculated rice leaves with 1 × 107 cfu/mL bacterial suspension compared to sterile water or control treatment exhibited lower disease incidence in the curative and preventive groups by 79% and 76%, respectively. Field experiment showed that after spraying with 1 × 107 cfu/mL bacterial suspension, efficacy rates on controlling rice blast on plants were (56.82 ± 1.12)% and (58.39 ± 3.05)% at seedling and maturity stages, respectively, and that rice production yield was (524.40 ± 17.88) g/m2. Therefore, B. subtilis JN005 could be a promising biological control agent for rice blast, thereby warranting further investigation of its efficacy.

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