Optimizing Plant Growth-Promoting Rhizobacteria to Improve the Relationship Between Above and Below Ground Biodiversity

Abstract

Biodiversity plays a crucial role in ensuring environmental sustainability. Plantrhizosphere microbiome interactions are ecologically important because they can alter the biological, chemical, and physical properties of the soil, ultimately affecting plant productivity. To maintain soil function, bio-ameliorant technologies, new modern composting crop residues, and limited use of synthetic pesticides have all been used to boost microbial activity in the soil. Soil management biotechnology is the use of microbes to maintain soil function, resulting in increased plant productivity. It offers a novel way to deal with a wide range of issues that are currently unsolved by conventional technology. It is thought that an improved relationship between above and below ground biodiversity can contribute to the re-establishment of essential biological functions. The Indonesian Research Institute for Biotechnology and Bioindustry (IRIBB), PT Riset Perkebunan Nusantara, has been working on developing plant growth-promoting rhizobacteria (PGPR) as a bio-ameliorant to improve the relationship between above and below ground biodiversity for sustainable management and increased plant productivity.


Keywords: bio-ameliorant, biodiversity, biotechnology, rhizosphere, soil microbes

References
[1] Santi LP. The effect of inoculation of Burkholderia cenocepacia KTG in water retention and soil nutrient on Typic udipsamment. Jurnal Tanah dan Iklim. 2014;2(38):101-108.

[2] Goenadi DH, Santi LP. Aplikasi bioaktivator superdec dalam pengomposan limbah padat organik tebu. Buletin Agronomi. 2006;34(3):173-180.

[3] Santos MS, Nogueira MA, Hungria M. Microbial inoculants: Reviewing the past, discussing the present and previewing an outstanding future for the use of beneficial bacteria in agriculture. Applied Microbiology and Biotechnology Express. 2019;9(205):1-22.

[4] Cantó CF, Simonin M, King E, Moulin L, Bennett MJ, Castrillo G, Laplaze L. An extended root phenotype: The rhizosphere, its formation and impacts on plant fitness. The Plant Journal. 2020;103(3):951-964.

[5] Kalam S, Das SN, Basu A, Podile AR. Population densities of indigenous Acidobacteria change in the presence of plant growth promoting rhizobacteria (PGPR) in rhizosphere. Journal of Basic Microbiology. 2017;57: 376–385.

[6] Basu A, Prasad P, Das SN, Kalam S, Sayyed RZ, Reddy MS, El Enshasy H. Plant growth promoting rhizobacteria (PGPR) as green bioinoculants: Recent developments, constraints, and prospects. Sustainability. 2021;13(3):1140-1160.

[7] Santi LP, Goenadi DH, Sabiham S, Bindar Y. The use of molecular-sieving material as ameliorant for peat degradation in the tropics. Journal of Minerals and Materials Characterization and Engineering. 2021;9:362-374.

[8] Kresnawaty I, Prakoso HT, Eris DD. Ligninolytic activity of Omphalina sp. isolated from EFB and its application for decolorization of cosmetic waste. Menara Perkebunan. 2012;80(2):48-56.

[9] Santi LP, Sudarsono, Goenadi DH, Murtilaksono K, Santosa DA. Pengaruh pemberian inokulan Burkholderia cenocepacia dan bahan organik terhadap sifat fisik bahan tanah berpasir. Menara Perkebunan. 2010;78(1):1-16.

[10] Santi LP, Goenadi DH. Uji potensi Burkholderia cenocepacia strain KTG sebagai bahan aktif pembenah hayati pada tanah tekstur berpasir di Kalimantan Tengah. Menara Perkebunan. 2013;81(1):1-8.

[11] Jain D, Sharma J, Kaur G, et al.Phenetic and molecular diversity of nitrogen fixating plant growth promoting Azotobacter isolated from semiarid regions of India. Hindawi BioMed Research International. 2021;2021:1-9.

[12] Mukhtar H, Bashir H, Nawaz A, Haq I. Optimization of growth conditions for Azotobacter species and their use as biofertilizer. Journal of Bacteriology & Mycology. 2018;6(5):274-278.

[13] Lamichhane JR, Varvaro L. A new medium for the detection of fluorescent pigment production by pseudomonads. The Plant Pathology Journal. 2013;62:624–632.

[14] Santi LP, Sudarsono, Goenadi DH, Murtilaksono K, Santosa DA. Karakteristik gugus fungsional eksopolisakarida Burkholderia cenocepacia strain KTG dalam tiga kelas tekstur tanah. Menara Perkebunan. 2011;79(2):36-41.