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Unlocking the growth potential:harnessing the power of synbiotics to enhance cultivation of Pleurotus spp.

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第4期25卷 293-306页

作者： Reshma PATIL Aizi Nor Mazila RAMLI Ang Shu XUAN Ng Zhi XIN Nur Izyan Wan AZELEE Prakash BHUYAR Faculty of Industrial Sciences and Technology Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)Gambang26300Malaysia BioAromatic Research Centre of Excellence Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)Gambang26300Malaysia Department of Bioprocess&Polymer Engineering Faculty of EngineeringUniversiti Teknologi MalaysiaJohor81310Malaysia Organic Agriculture Management Maejo University International College(MJU-IC)Maejo UniversityChiang Mai50290Thailand International Industry and Agriculture Innovation Research Center(IIAR) International CollegeMaejo UniversityChiang Mai50290Thailand

The oyster mushroom(Pleurotus spp.)is one of the most widely cultivated mushroom species globally.The present study investigated the effect of synbiotics on the growth and quality of Pleurotus ostreatus and Pleurotus pulmonarius.Different synbiotics formulations were applied by spraying mushroom samples daily and measuring their growth parameters,yield,biological efficiency,proximate composition,mineral content,total phenolic content(TPC),and diphenyl-1-picryl-hydrazyl(DPPH)radical scavenging activity.Results demonstrated that the most significant yield of oyster mushrooms was harvested from synbiotics sprayed with inulin and Lactobacillus casei(56.92 g).Likewise,the highest biological efficiency obtained with a similar synbiotic was 12.65%.Combining inulin and L.casei was the most effective method of improving the mushrooms'growth performance and nutrient content in both samples.Furthermore,synbiotics that combined inulin and L.casei resulted in the highest TPC(20.550 mg gallic acid equivalent(GAE)/g dry extract(DE))in white oyster mushrooms(P.ostreatus).In comparison,in grey mushroom(P.pulmonarius)the highest TPC was yielded by L.casei(1.098 mg GAE/g DE)followed by inulin and L.casei(1.079 mg GAE/g DE).The DPPH results indicated that the oyster mushroom could be an efficient antioxidant.The results revealed that applying synbiotics improved the mushrooms'quality by increasing their antioxidant capacity with higher amounts of phenolic compounds and offering better health benefits with the increased levels of mineral elements.Together,these studies demonstrated the potential of using synbiotics as a biofertilizer,which is helpful for mushroom cultivation;therefore,it might solve the challenge of inconsistent quality mushroom growers face.

关键词： Antioxidant biofertilizer Growth performance Mushroom cultivation Pleurotus Synbiotics

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Microalgal bioinoculants for sustainable agriculture and their interactions with soil biotic and abiotic components:A review

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Pedosphere 2024年第2期34卷 297-314页

作者： Shisy JOSE Nirmal RENUKA Sachitra Kumar RATHA Sheena KUMARI Faizal BUX Institute for Water and Wastewater Technology Durban University of TechnologyP.O.Box 1334Durban 4000South Africa Algal Biotechnology Laboratory Department of BotanyCentral University of PunjabBathinda 151401India Phycology Laboratory Council of Scientific and Industrial Research-National Botanical Research InstituteLucknowUttar Pradesh 226001India

Modern agricultural practices have posed a detrimental impact on the environment due to their intensive use to meet the food demands of an ever-increasing population.In this context,microalgal bioinoculants,specifically cyanobacteria and green microalgae,have emerged as sustainable options for agricultural practices to improve soil organic carbon,nutrient availability,microbial quality,and plant productivity.An overview of current and future perspectives on the use of microalgal bioinoculants in agriculture practices is presented in this review,along with a discussion of their interactions with soil biotic and abiotic factors that affect soil fertility,plant health,and crop productivity.The benefits of microalgal bioinoculants include releasing agronomically important metabolites(exopolymers and phytohormones)as well as solubilizing soil nutrients.Furthermore,they function as biocontrol agents against soil-borne pathogens and facilitate the establishment of rhizosphere communities of agricultural importance.So far,very few studies have explored the basic mechanisms by which microalgal bioinoculants interact with soil biotic and abiotic factors.In recent years,advanced molecular techniques have contributed to a better understanding of these interactions.

关键词： biocontrol agent biofertilizer cyanobacteria microalgae microbial community molecular technique plant growth soil fertility

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Isolation, characterization and identification of plant growth-promoting rhizobacteria from the rhizosphere of Acacia mangium at sandy BRIS soil

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Frontiers of Agricultural Science and Engineering 2024年第3期11卷 499-513页

作者： Zakiah MUSTAPHA Radziah OTHMAN Nik Nurnaeimah NIK MUHAMMAD NASIR Dhiya Dalila ZAWAWI Mohd Khairi CHE LAH Hafizan JUAHIR School of Agriculture Science and Biotechnology Faculty of Bioresources and Food Industry Universiti Sultan Zainal Abidin Besut Campus Department of Land Management Faculty of Agriculture Universiti Putra Malaysia Faculty of Plantation and Agrotechnology Universiti Technologi MARA Cawangan Pahang

This study has isolated, characterized, and identified potential plant growthpromoting rhizobacteria（PGPR） with multiple PGP characteristics（N2-fixation,P-and K-solubilization, IAA, and siderophores production） from the rhizosphere BRIS soil of Acacia mangium. A total of 24 pure colonies were isolated and only 8 colonies were selected for further evaluation of the growth rate in 5% organic molasses medium supplemented with 2% KNO3. Based on the biochemical, potential PGP characteristics and growth performance, 3 superior PGPR strains were selected and identified as Paraburkholderia unamae（UA1）, Bacillus amyloliquefaciens（UA6）, and Enterobacter asburiae（UAA2） by partial sequencing of the 16S rRNA gene. The selected bacterial strains either in single or mixed（UA1 + UA6 + UAA2） cultures have shown a significant biochemical estimation of the PGP characteristics. Each strain has its own PGPR traits superiority with UA1 showing the best PGP characteristic followed by UA6 and UAA2. The use of mixed bacterial strains was beneficial as it showed the best performance in N2-fixation, siderophores production, and significant effect on corn phenology, growth and yield compared to using a single strain. These types of microbes showed potential to be used as biofertilizer and should be exploited more.

关键词： biofertilizer corn organic molasses me- dium PGP characteristic phytohormone potassium nitrate siderophores

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Effect of biofertilizers on the Agromorphological Parameters of Three Okra Cultivars in Southern Côte d’Ivoire

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Agricultural Sciences 2024年第4期15卷 408-422页

作者： Guinagui N’doua Bertrand Nomel Meless Patrice Sanogo Souleymane Kouassi N’dri Pacôme Kouadio Edouard Yves Gilchrist Dao Jonas Patrick Koné Dapah Sara Fatim Koné Daouda Fatogoma Sorho Plant Physiology and Pathology Teaching and Research Unit UFR Biosciences F&#233lix Houphou&#235t-Boigny University Abidjan C&#244te d&#8217Ivoire WASCAL Center/African Center of Excellence on Climate Change Biodiversity and Sustainable Agriculture (WASCAL/CEA-CCBAD) Abidjan C&#244te d&#8217Ivoire

Okra (Abelmoschus esculentus L.) is an herbaceous plant of the Malvaceae family. In Côte d’Ivoire, okra production is estimated to be over 193,000 tons. This low production is largely due to poor soils and hardly covers the needs of the population. To remedy this, growers systematically use mineral fertilizers. However, these fertilizers pollute the environment. To find an alternative to chemical fertilization and increase production, the effect of biofertilizers (Spaawet, Retone, Super Gro) compared with NPK mineral fertilizer was evaluated on Divo, Teriman, and Djonan F1 cultivars. The trial was set up in a factorial block design with three replications. Plant height, number of functional leaves, and crown diameter were assessed at 60 days after sowing (DAS). The time to 50% flowering, production time, and fruit yield were calculated. The results showed that the biofertilizer Retone induced the highest heights and number of functional leaves, with averages of 61.89 cm and 29.88 leaves, respectively. The diameter at the crown (17.77 mm) was highest with the NPK mineral fertilizer, and the shortest 50% flowering time, with an average of 47.61 days, was also obtained with the biofertilizer Retone. The NPK mineral fertilizer produced the longest production time, with an average of 35.25 days. The highest yields were obtained using Retone (11.07 t/ha) and NPK (9.52 t/ha) fertilizers. The “Divo*Retone” interaction produced the highest yield with an average of 12.19 t/ha. The biofertilizer Retone could therefore be used as an alternative fertilizer to chemical fertilization in okra crops, given its effect on the parameters assessed.

关键词： biofertilizer Retone Mineral Fertilizer Okra Yield Côte d’Ivoire

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Yield, Growth and Vegetative Development Parameters Response of Dry Beans to Organic and Inorganic Fertilizers and biofertilizer

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Agricultural Sciences 2023年第12期14卷 1688-1701页

作者： Noupé Diakaria Coulibaly André Gabazé Gadji Serge Hervé Kimou Christian Landry Ossey Lassina Fondio Mako François De Paul N’Gbesso Aya Félicité N’Gaza Louis Butare CNRA (Centre National de Recherche Agronomique) Bouaké C&#244te d’Ivoire UFR Sciences et Technologies Université Alassane Ouattara Bouaké C&#244te d’Ivoire Alliance of Bioversity International and CIAT C/O IITA-Benin Station Cotonou Benin

As part of the promotion of common bean cultivation, fertilization methods will have to be proposed to growers. The aim of this study is therefore to develop a technical itinerary for dry bean fertilization. To this end, different types of chemical and organic fertilizers were evaluated on three dry bean varieties (HARI25/GHA19, HARI35/GHA19 and HARI36/GUI21). Seven (7) doses of chemical and organic fertilizers were used, including two controls (D0 with no fertilizer and D1, the reference dose using NPK base and cover fertilizers in the form of urea). The fertilization trial was set up as a Split-Plot design, with variety as the primary factor and dose as the secondary factor. The experiment was repeated three (3) times. The results showed that vegetative development parameters and fruit set rate varied according to the variety studied. For yield and its components, the treatments had a significant effect. Indeed, the response of varieties to fertilizers was specific. For each variety used, the optimum yield was obtained with a different treatment, thus highlighting the genotype effect of the dry bean varieties studied. Among the treatments tested, D4 (5 t organic fertilizer/ha) performed best in all three varieties, generating yield increases of 20%, 46% and 91% respectively.

关键词： Dry Bean Variety Chemical Fertilizer Organic Matter biofertilizer

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Phytotoxicity Assessment of biofertilizer Produced from Bioreactor Composting Technology Using Lettuce (Lactuca sativa L.) Seeds

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Open Journal of Ecology 2023年第5期13卷 257-270页

作者： Eva R. Orlina Neil Angelo D. Besana Gene T. Señeris Kathleen C. Capiña Department of Plant Science College of Agriculture Forestry and Environmental Sciences Aklan State University Banga Philippines

Establishing reliable technological information on the safety of biofertilizers produced from a bioreactor composting technique is a must prior to its commercialization. A phytotoxicity study of biofertilizer made from the bioreactor composting technology at Aklan State University, Banga, Aklan, Philippines was conducted for fourteen (14) days using commercially available lettuce seeds (Lactuca sativa L.). Standard phytotoxicity attributes such as hypocotyl length, radicle length, relative germination percentage, and relative radicle growth observed during the germination stage were evaluated. Results revealed no significant difference in the radicle lengths of the germinated lettuce seeds as affected by the varying levels of biofertilizer dilution at H(3) = 10.567, p = 0.061 > 0.05. On the other hand, the hypocotyl length of the lettuce showed significant differences in response to varying levels of biofertilizer dilution with Welch’s F(5, 5.163) = 8.175, p = 0.017 biofertilizer affected significantly the germination percentage of lettuce seeds F(5, 12) = 5.822, p = 0.006 biofertilizer treatments indicated a decrease in relative germination percentage. However, those seeds applied with 10% biofertilizer have the highest reduction of germination percentage, equivalent to 86.9% (RGP = 13.10%). All levels of biofertilizer showed an increase in radicle growth in contrast to the negative control plant except for the one given a 10% level of biofertilizer. Seeds that received 10% biofertilizer showed an extremely high reduction in radicle growth, equivalent to 72.22% (RRG = 27.78%). The study shows that applying low levels of the bioreactor-produced biofertilizer will observably reduce the measure of the germination characteristics of lettuce seeds, but not necessarily low enough to be considered phytotoxic. However, the application of at least 10% bioreactor-produced biofertilizer can presumptively lead to phytotoxicity.

关键词： biofertilizer Bioreactor Germination Lettuce And Phytotoxicity

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Rhizobacteria facilitate physiological and biochemical drought tolerance of Halimodendron halodendron (Pall.) Voss

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Journal of Arid Land 2023年第2期15卷 205-217页

作者： Mohammad Hossein TAGHIZADEH Mohammad FARZAM Jafar NABATI Department of Range and Watershed Management Ferdowsi University of MashhadMashhad ***Iran Legume Department Research Center for Plant SciencesFerdowsi University of MashhadMashhad ***Iran

Growth-promoting bacteria(GPB)have shown promising effects on serving plants against environmental constraints such as drought.Nevertheless,simultaneous effects of different GPB have less been considered for arid land plants and under field conditions.We investigated the effects of single and combined application of GPB,including free-living nitrogen-fixing bacteria(NFB),phosphate solubilizing bacteria(PSB),potassium solubilizing bacteria(KSB),a combination of NFB,PSB,and KSB(NPK),and control,at three drought stress treatments.In order to better understand the interactions between drought and GPB,we measured the morphological,biochemical,and physiological plant traits.The target plant was salt tree(Halimodendron Halodendron(Pall.)Voss),a legume shrub native to arid lands of Central and West Asia.All biofertilizer treatments enhanced the growth,physiology,and biochemistry of salt tree seedlings,and there were significant differences among the treatments.KSB and PSB treatments increased photosynthetic pigments,but KSB treatment was more efficient in transpiration rate and stomatal regulation and increased the soluble carbohydrates.PSB treatment had the highest effect on root traits,such as taproot length,root volume,cumulative root length,and the ratio of root to shoot.NFB treatment enhanced root diameter and induced biomass translocation between root systems.However,only the application of mixed biofertilizer(i.e.,NPK treatment)was the most significant treatment to improve all plant morphological and physiological characteristics of salt tree under drought stress.Therefore,our results provided improvement of some specific plant traits simultaneous with application of three biofertilizers to increase growth and establishment of salt tree seedlings in the degraded arid lands.

关键词： growth-promoting bacteria physiological traits drought stress biofertilizer root traits Halimodendron Halodendron(Pall.)Voss

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Silicon and plant nutrition—dynamics,mechanisms of transport and role of silicon solubilizer microbiomes in sustainable agriculture:A review

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Pedosphere 2023年第4期33卷 534-555页

作者： Barkha SHARMA Kailash Chand KUMAWAT Shalini TIWARI Ajay KUMAR Rouf Ahmad DAR Ummed SINGH Massimiliano CARDINALE Department of Microbiology G.B.Pant University of Agriculture&TechnologyPantnagarUttarakhand 263145(India) Department of Industrial Microbiology Jacob Institute of Biotechnology and BioengineeringSam Higginbottom University of AgricultureTechnology and Sciences(SHUATS)PrayagrajUttar Pradesh 211007(India) College of Agriculture Agriculture UniversityJodhpurBaytuBarmerRajasthan 344034(India) Department of Biological and Environmental Sciences and Technologies-DiSTeBA University of SalentoSP6 Lecce-MonteroniLecce I-73100(Italy)

Silicon(Si)is the second most abundant element in the Earth’s crust and has numerous roles in both soils and plants,although it is inaccessible to plants in its native state(insoluble silicate minerals).This inaccessibility can lead to insufficiency,which induces anomalies in plant growth and development.Specifically,Si alleviates various biotic and abiotic stresses in plants by enhancing tolerance mechanisms at different stages of uptake/deposition as a monosilicic acid.Exclusive utilization of conventional Si fertilizers to boost agricultural productivity in an attempt to meet the world’s ever-increasing food demand may result in surface and groundwater pollution,waterway eutrophication,soil fertility depletion,and accumulation of hazardous elements such as arsenic in soil.By addressing the drawbacks of chemical fertilizers,this review emphasizes an environmentally friendly alternative,namely,Si-solubilizing microorganisms(SSMs),as bioinoculants to liberate soluble Si and thus making it available to plants.A deep understanding of recent advances in the functional diversity,colonization patterns,modes of action,role in biogeochemical cycling,and plant stress tolerance of SSMs and their implementation in Si-based agrowaste management through the fabrication of nanoparticles,could help to establish a reliable tool for economically and environmentally sustainable agriculture.From this perspective,in this review,we comprehensively summarize the latest methodologies for the isolation,screening,and characterization of SSMs and Si solubilization mechanisms,including ligands(divalent cations),acids(inorganic and organic),alkali(nucleophilic attack),extracellular polysaccharides,and factors affecting them,as well as Si-mediated regulation of gene expression involved in Si uptake,transportation,and mineralization.We have critically revised the role of SSMs according to the current literature.The contributions of SSMs to biofertilization are still being explored;hence,we also discuss trajectories for future research in rel

关键词： agrowaste management biofertilizer bioinoculant monosilicic acid plant stress silicon-solubilizing microorganism

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Recent advances in the chemistry of nitrogen,phosphorus and potassium as fertilizers in soil:A review

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Pedosphere 2023年第3期33卷 385-406页

作者： Sharhabil Musa YAHAYA Aliyu Ahmad MAHMUD Mustapha ABDULLAHI Abdurrashid HARUNA Department of Soil Science Faculty of Agriculture/Institute for Agricultural ResearchAhmadu Bello UniversityPrivate Mail Bag(P.M.B.)1044Zaria 810107(Nigeria) Faculty of Agriculture Banat's University of Agricultural Sciences and Veterinary Medicine“King Michael I of Romania”from TimisoaraTimisoara 300645(Romania) Faculty of Agriculture and Veterinary Science Mewar UniversityChittorgarhGangrar 312901(India) Department of Pure and Applied Chemistry Faculty of SciencesKaduna State UniversityTafawa Balewa WayP.M.B.2339Kaduna 741102(Nigeria) Department of Chemistry Faculty of Physical SciencesAhmadu Bello UniversityP.M.B.1044Zaria 810107(Nigeria) Department of Fundamental and Applied Sciences Universiti Teknologi PetronasPerak Darul RidzuanSeri Iskandar 32610(Malaysia)

The advent of civilization has made humans dependent on plants for food and medicine,leading to the intensification of agricultural production.The intense cultivation of crops has resulted in the depletion of available nutrients from soil,thereby demanding the application of excess nutrients to soil to improve yield.Thus,mineral fertilizer discovery and application have,in many ways,contributed greatly to meeting global food demands.However,aside from the positive effects of mineral fertilizers,their excessive application to soil produces large amounts of pollutants that affect environmental sustainability.This necessitates the study of the major mineral fertilizer elements(nitrogen(N),phosphorus(P),and potassium(K)),the forms in which they are applied to soil,and their chemistry/reactions in soil.Here,we reviewed the forms of different N,P,and K mineral fertilizers to provide current knowledge on their constituents,the chemistry of N,P,and K in soil to understand the reactions they undertake in soil,the efficient methods of fertilizer application for environmental sustainability,the effects of mineral fertilizer loss to the environment,and improved fertilization technologies for environmental sustainability.Nanofertilizers are a promising technology for sustainable agricultural production and are discussed in detail in this review.

关键词： biofertilizer environmental sustainability fertilizer application method fertilizer form mineral fertilizer nanofertilizer nutrient loss nutrient use efficiency

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Potassium sources, microorganisms and plant nutrition: Challenges and future research directions

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Pedosphere 2023年第1期33卷 105-115页

作者： Abdoulaye SOUMARE Djibril SARR Abdala G.DIÉDHIOU UFR ST Departement of AgroforestryAssane Seck University of Ziguinchor(UASZ)Ziguinchor BP 523Senegal Laboratoire Commun de Microbiologie(LCM) IRD/ISRA/UniversitéCheikh Anta Diop(UCAD)Centre de Recherche de Bel AirDakar BP 1386Senegal Centre d’Excellence Africain en Agriculture pour la SécuritéAlimentaire et Nutritionnelle(CEA-AGRISAN) UCADDakar BP 5005Senegal Département de Biologie Végétale Facultédes Sciences et TechniquesUCADDakar BP 5005Senegal

Until recently,potassium(K)has not received considerable attention because of the general belief that soils contain ample amounts of this element.In addition,low rates of K fertilizer application in agriculture have led to rapid depletion of K in the rhizosphere soil in many underdeveloped countries.This results in various negative impacts,including preventing optimum utilization of applied nitrogen and phosphorus fertilizers.To compensate for these losses,massive use of K fertilizers in agriculture has been suggested.Potassium fertilizers are manufactured from rock minerals,particularly sylvite(KCl)and carnallite(KCl·MgCl2·6H2O).Unfortunately,to date,there is no cost-effective technology available for converting rock minerals into potassic fertilizers.Potassium-solubilizing microorganisms(KSMs)can release K from soil/minerals into plant-available forms,which could be a sustainable option.The possibility of using KSMs as efficient biofertilizers to improve crop production has been increasingly highlighted by researchers.In this review,the existing forms of K in soils and their availability and dynamic equilibrium are discussed.In addition,different K fertilizers and their advantages and disadvantages for crops are described.Furthermore,the microorganisms usually reported as K solubilizers,the research progress on KSMs,and future insights on the use of these KSMs in agriculture are reviewed.Screening and analyses of the published literature show that organic acid production is the common mechanism of K solubilization by bacteria and fungi.This review may serve as a proposal for the future research avenues identified here.

关键词： biofertilizer crop production organic acid K solubilization K-solubilizing microorganisms rock minerals

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