Plant Growth Promoting Rhizobacteria for Horticultural Crop Protection

Reddy, P. Parvatha

doi:10.1007/978-81-322-1973-6

Cited by 44 publications

(39 citation statements)

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“…rodasii , and P . vancouverensis is through production of IAA . The detection of phytohormones in strain LNHR13 and its isolated components showed that the content of IAA was related the increase rate of biomass, the higher the content of IAA, the higher the increment of biomass.…”

Section: Discussionmentioning

confidence: 97%

Promotion of phenolic compounds production in Salvia miltiorrhiza hairy roots by six strains of rhizosphere bacteria

You

Yang

Zhang

et al. 2017

Engineering in Life Sciences

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Salvia miltiorrhiza Bunge is an important herb for the treatment of cerebrovascular and cardiovascular diseases with bioactive compounds (phenolic acids and tanshinones). Abundant studies showed that tanshinones could be stimulated by biotic and abiotic stresses, but limited information is available on biosynthesis of phenolic acids promoted by biotic stresses. The aim of the present work was to isolate and identify rhizosphere bacteria which stimulated phenolic compound in Salvia miltiorrhiza hairy roots and investigated the internal mechanism, providing a potential means to enhance content of pharmaceuticals in S. miltiorrhiza. The results showed that six bacteria, namely, HYR1, HYR26, SCR22, 14DSR23, DS6, and LNHR13, belonging to the genus Pseudomonas and Pantoea, significantly promoted the growth and content of major phenolic acids, RA and SAB. Bacteria LNHR13 was the most effective one, with the contents of RA and SAB reaching ∼2.5‐fold (30.1 mg/g DW) and ∼2.3‐fold (48.3 mg/g DW) as those of the control, respectively. Phytohormones and polysaccharides produced by bacteria showed potential responsibility for the growth and biosynthesis of secondary metabolites of S. miltiorrhiza. Meanwhile, we found that the more abundant the types and contents of phytohormones, the stronger their stimulating effect on the content of salvianolic acids.

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Section: Discussionmentioning

confidence: 97%

Promotion of phenolic compounds production in Salvia miltiorrhiza hairy roots by six strains of rhizosphere bacteria

You

Yang

Zhang

et al. 2017

Engineering in Life Sciences

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“…Hal ini terlihat pada pH awal tanah sebesar 5 3 , serta PGPR dengan kerapatan masing-masing bakteri 108 cfu ml l -1 (diperoleh dari Lab HPT FP UB).Penelitian ini dilaksanakan dengan menggunakan Rancangan Petak Terbagi. Rancangan Petak Terbagi terdiri dari petak utama dan anak petak.…”

Section: Pendahuluanunclassified

Analisis Pertumbuhan Dua Varietas Tanaman Padi (Oryza sativa L.) Pada Berbagai Perlakuan Pemupukan

Widyaswari¹,

Santosa²,

Maghfoer³

2017

Biotropika

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ABSTRAKBudidaya tanaman krisan potong pada umumnya dilakukan menggunakan pupuk anorganik. Penggunaan pupuk anorganik secara terus menerus menimbulkan pencemaran lingkungan. Penelitian ini bertujuan untuk mengkaji (1) konsentrasi PGPR terhadap pengurangan penggunaan pupuk anorganik dalam budidaya tanaman krisan potong terhadap standar hasil krisan potong dan (2) kombinasi konsentrasi PGPR dan pemberian dosis pupuk anorganik terhadap standar hasil krisan potong. Penelitian ini dilaksanakan pada bulan Juni -September 2016 di dalam rumah lindung di Desa Sumbergondo, Kecamatan Bumiaji, Kota Batu dengan ketinggian 1.100 m dpl. Metode yang digunakan ialah Rancangan Petak Terbagi yang terdiri dari petak utama ialah perlakuan pemberian PGPR (P) dan anak petak ialah pemberian pupuk anorganik. Dari hasil penelitian didapatkan bahwa perlakuan konsentrasi PGPR dan pengurangan dosis pupuk anorganik tidak menunjukkan terjadinya interaksi. Pemberian PGPR dengan konsentrasi 10 ml l -1 per aplikasi berpengaruh nyata meningkatkan biomassa akar dan biomassa total tanaman. Pengurangan dosis pupuk anorganik 25% mampu menghasilkan krisan potong dengan kriteria grade A, antara lain memiliki panjang tangkai ≥ 70 cm; diameter tangkai antara 4,1 hingga 5 mm dan diameter bunga antara 71 hingga 80 mm yang lebih banyak daripada perlakuan lain. Kandungan nutrisi pada daun dan tanah mengalami peningkatan seiring dengan peningkatan konsentrasi PGPR dan semakin sedikitnya pengurangan dosis pupuk anorganik.

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“…Recent advances in the area of biofertilizers, specifically those related to symbiotic N-fixing bacteria of the genus Rhizobium, and to free-living rhizobacteria of the genera Azospirillum, Azotobacter, Bacillus, Enterobacter, Pseudomonas, Serratia, and Streptomyces, show that it is possible to make efficient use of this resource without applying excessive concentrations of mineral fertilizers rich in N (Reddy 2014). In the case of arbuscular mycorrhizal (AM) fungi, specific ammonium transporters have been detected in the fungal mycelium, which enhance N uptake and use by the host plant (Pérez-Tienda et al 2011, 2014.…”

Section: Nitrogen (N)mentioning

confidence: 99%

“…In the case of arbuscular mycorrhizal (AM) fungi, specific ammonium transporters have been detected in the fungal mycelium, which enhance N uptake and use by the host plant (Pérez-Tienda et al 2011, 2014.…”

Section: Nitrogen (N)mentioning

confidence: 99%

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Plant and microbe genomics and beyond: potential for developing a novel molecular plant nutrition approach

2015

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Classical soil science approaches have enabled us to establish basic principles of how the soil system functions and have answered numerous practical agricultural application questions. In recent years, efforts have been refocused on better understanding, managing and benefiting from this system that contains one of the most complex biological communities of the planet. Soil biology is seen as being at the center of scientific research of this century, with novel research objectives and goals being set. In addition, plant nutrition has enabled us to understand nutrient uptake, transport and mobilization mechanisms in plants, and both disciplines have converged on the area of microorganism-mediated plant nutrition. The challenge for these scientific areas is to identify microorganism communities and the roles they play in their habitats, as well as the mechanisms that plants have to make better use of nutrients. Genomics and metagenomics, along with microbiological techniques, are contributing greatly to advances in our understanding of living systems that exist in the soil and their interaction with plants. For its part, molecular plant nutrition has made significant progress in understanding the use of nutrients by plant cells, and has identified molecular mechanisms that can improve nutrient use efficiency. Together, molecular soil microbiology and molecular plant nutrition are projected to be a driving force in agriculture and sustainable food production in the coming years. Herewith, we aim to integrate recent literature on basic and applied research concerning plant and microbe genomics in terms of their potential for developing a novel molecular plant nutrition approach, with special emphasis on nitrogen, potassium and phosphorous as the major macronutrients for crop plants.

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Plant Growth Promoting Rhizobacteria for Horticultural Crop Protection

Cited by 44 publications

References 0 publications

Promotion of phenolic compounds production in Salvia miltiorrhiza hairy roots by six strains of rhizosphere bacteria

Promotion of phenolic compounds production in Salvia miltiorrhiza hairy roots by six strains of rhizosphere bacteria

Analisis Pertumbuhan Dua Varietas Tanaman Padi (Oryza sativa L.) Pada Berbagai Perlakuan Pemupukan

Plant and microbe genomics and beyond: potential for developing a novel molecular plant nutrition approach

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