Enhanced production of podophyllotoxins by co-culture of transformed Linum album cells with plant growth-promoting fungi

2010 ◽  
Vol 82 (1) ◽  
pp. 227-241 ◽  
Author(s):  
Ashish Baldi ◽  
Sunita Farkya ◽  
Abhishek Jain ◽  
Nishant Gupta ◽  
Rahul Mehra ◽  
...  
Keyword(s):  
Plant Growth ◽  
Arbuscular Mycorrhizae ◽  
Product Formation ◽  
Suspension Cultures ◽  
Promoting Effect ◽  
Linum Album ◽  
Enhanced Production ◽  
Culture Filtrates ◽  
Plant Growth Promoting ◽  
Growth Promoting

To investigate the plant growth-promoting effect and stimulation of lignan biosynthesis, the effect of culture filtrates/live co-culture of two arbuscular mycorrhizae-like fungi, Piriformospora indica and Sebacina vermifera, on growth of Linum album cells and on production of podophyllotoxin (PT) and 6-methoxypodophyllotoxin (6-MPT) was studied. For elicitation studies, different volumes of culture filtrates (autoclaved and membrane-filtered) of P. indica/S. vermifera were added to suspension cultures of L. album. The culture filtrates of both the fungi exhibited a positive effect on product formation. For co-culture experiments, both fungi were individually co-cultivated at different concentrations with L. album in suspension cultures for different time periods. This resulted in significant enhancement of PT and 6-MPT content in the plant cells. The activity of phenylalanine ammonia lyase (PAL) was observed to be related to the lignan accumulation, indicating its role as the key enzyme of the phenylpropanoid pathway. The study resulted in total lignan (PT and 6-MPT) production of 745.6 mg/l with a very high PT productivity of 52.4 mg/(l.d).

The plant growth-promoting effect of the nitrogen-fixing endophyte Pseudomonas stutzeri A15

2017 ◽  
Vol 199 (3) ◽  
pp. 513-517 ◽  
Author(s):  
Van T. K. Pham ◽  
Hans Rediers ◽  
Maarten G. K. Ghequire ◽  
Hiep H. Nguyen ◽  
René De Mot ◽  
...  
Keyword(s):  
Plant Growth ◽  
Pseudomonas Stutzeri ◽  
Nitrogen Fixing ◽  
Promoting Effect ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Genomic Characterization of a Newly Isolated Rhizobacteria Sphingomonas panacis Reveals Plant Growth Promoting Effect to Rice

2019 ◽  
Vol 24 (1) ◽  
pp. 119-125 ◽  
Author(s):  
Yeon-Ju Kim ◽  
Jaewon Lim ◽  
Johan Sukweenadhi ◽  
Ji Woong Seok ◽  
Sang-Won Lee ◽  
...  
Keyword(s):  
Plant Growth ◽  
Promoting Effect ◽  
Plant Growth Promoting ◽  
Genomic Characterization ◽  
Growth Promoting

scholarly journals Effect of Azospirillum brasilense and mycorrhizal soil fungi on topinambur grown in a greenhouse

2021 ◽  
Vol 8 (4) ◽  
pp. 104-110
Author(s):  
Di Barbaro Gabriela ◽  
Andrada Horacio ◽  
Batallan Morales Silvana ◽  
Espeche Acosta Eliana ◽  
Rizo Melisa ◽  
...  
Keyword(s):  
Plant Growth ◽  
Mycorrhizal Fungi ◽  
Azospirillum Brasilense ◽  
Soil Fungi ◽  
Jerusalem Artichoke ◽  
Promoting Effect ◽  
Greenhouse Production ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
The Moment

To determine the effect of Azospirillum brasilense and soil mycorrhizal fungi on the nutrition of the Jerusalem artichoke crop (Helianthus tuberosus L.), evaluations of agronomic parameters and the health status of the plants were carried out, under greenhouse conditions. The tests were carried out, at the moment of the implantation of the culture: the tubers were inoculated with A. brasilense and with native mycorrhizal fungi, generating four treatments including the control and the co-inoculation of the consortium of the microorganisms under study (T0: control or control without inoculation; T1: inoculation with native A. brasilense; T2: inoculation with native mycorrhizal fungi and T3: joint inoculation with A. brasilense and native mycorrhizal fungi. The results indicate that co-inoculation with A. brasilense and with native mycorrhizal fungi increased plant growth in height, leaf area, biomass, dry matter, and yields significantly in greenhouse production. It was determined that the application of the selected microorganisms has a plant growth-promoting effect, increasing the productivity of cultivated topinambur in the greenhouse

scholarly journals Reuse of Wasted Bread as Soil Amendment: Bioprocessing, Effects on Alkaline Soil and Escarole (Cichorium endivia) Production

Foods ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 189
Author(s):  
Claudio Cacace ◽  
Carlo Giuseppe Rizzello ◽  
Gennaro Brunetti ◽  
Michela Verni ◽  
Claudio Cocozza
Keyword(s):  
Plant Growth ◽  
Soil Amendment ◽  
Organic Soil ◽  
Organic Content ◽  
High Yield ◽  
Alkaline Soil ◽  
Promoting Effect ◽  
Cichorium Endivia ◽  
Plant Growth Promoting ◽  
Growth Promoting

: In an era characterized by land degradation, climate change, and a growing population, ensuring high-yield productions with limited resources is of utmost importance. In this context, the use of novel soil amendments and the exploitation of plant growth-promoting microorganisms potential are considered promising tools for developing a more sustainable primary production. This study aimed at investigating the potential of bread, which represents a large portion of the global food waste, to be used as an organic soil amendment. A bioprocessed wasted bread, obtained by an enzymatic treatment coupled with fermentation, together with unprocessed wasted bread were used as amendments in a pot trial. An integrated analytical plan aimed at assessing i) the modification of the physicochemical properties of a typical Mediterranean alkaline agricultural soil, and ii) the plant growth-promoting effect on escarole (Cichorium endivia var. Cuartana), used as indicator crop, was carried out. Compared to the unamended soils, the use of biomasses raised the soil organic content (up to 37%) and total nitrogen content (up to 40%). Moreover, the lower pH and the higher organic acid content, especially in bioprocessed wasted bread, determined a major availability of Mn, Fe, and Cu in amended soils. The escaroles from pots amended with raw and bioprocessed bread had a number of leaves, 1.7- and 1.4-fold higher than plants cultivated on unamended pots, respectively, showing no apparent phytotoxicity and thus confirming the possible re-utilization of such residual biomasses as agriculture amendments.

scholarly journals Diversity of Endophytic Bacteria Associated with Different Cultivars of Medicinal Plant Arctium Lappa L. and Their Potential for Host Plant Growth Promoting

2021 ◽  
Author(s):  
Jia-Qi Liu ◽  
Chun-Mei Zhang ◽  
Yuan Gong ◽  
Ming-Jie Xu ◽  
Ke Xing ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Plant Growth ◽  
Endophytic Bacteria ◽  
High Throughput Sequencing ◽  
Promoting Effect ◽  
Pgp Traits ◽  
Arctium Lappa ◽  
Bacterial Phyla ◽  
Plant Growth Promoting ◽  
Growth Promoting

Abstract Purpose Arctium lappa L. is one of the medicinal and food homologous plants in China, which is rich in nutrients and medicinal ingredients. The use of plant growth promoting (PGP) endophytic bacteria is a useful alternative in agricultural production to reduce the use of chemical fertilizers. The aim of this study was to analysis the diversity of endophytic bacteria in different cultivars of A. lappa L. collected from two different geographical locations in China and evaluate PGP traits of the isolates and their potential PGP ability in greenhouse condition. Methods Endophytic bacterial community was investigated by culture-dependent and culture-independent methods. Isolates were screened and investigated for multiple PGP traits, and representative strains were inoculated host seedlings to evaluate the growth promoting effect. Results A total of 348 endophytic bacteria were obtained and they distributed into four phyla, 30 genera and 73 different species. In addition, high throughput sequencing revealed more abundant bacterial community, including 17 bacterial phyla, and 207 different known genera. A high proportion of PGP traits were detected, including production of indole acetic acid, siderophore, ammonia and phosphate solubilization. Four representative strains with multiple PGP traits of the most prevalent genera were further selected for host inoculation and growth promoting evaluation, and they significantly increase seedlings length, root length and fresh weight. Conclusion This study demonstrated that A. lappa L. harbors abundant endophytic bacteria, and plant genotype and geographical origin affect their composition. Moreover, some endophytic bacteria showed good potential for the development of microbial fertilizer in the future.

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