Synergistic effects of Azospirillum brasilense and Bacillus cereus on plant growth, biochemical attributes and molecular genetic regulation of steviol glycosides biosynthetic genes in Stevia rebaudiana

Copyright © 2022 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 189(2022) vom: 15. Okt., Seite 24-34
1. Verfasser: Elsayed, Ashraf (VerfasserIn)
Weitere Verfasser: Abdelsattar, Amal M, Heikal, Yasmin M, El-Esawi, Mohamed A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Azospirillum brasilense Bacillus cereus Stevia rebaudiana Steviol glycosides UDP-Glycosyltransferases genes ent-KO Antioxidants Diterpenes, Kaurane Glucosides mehr... Glycosides Phosphates RNA, Ribosomal, 16S Sugars stevioside 0YON5MXJ9P Uridine Diphosphate 58-98-0 Gallic Acid 632XD903SP Transferases EC 2.-
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100 1 |a Elsayed, Ashraf  |e verfasserin  |4 aut 
245 1 0 |a Synergistic effects of Azospirillum brasilense and Bacillus cereus on plant growth, biochemical attributes and molecular genetic regulation of steviol glycosides biosynthetic genes in Stevia rebaudiana 
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500 |a Date Completed 19.09.2022 
500 |a Date Revised 19.09.2022 
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520 |a Copyright © 2022 Elsevier Masson SAS. All rights reserved. 
520 |a The current study aimed to scale up the favorable bio-stimulants for enhancing the growth and breeding strategies of Stevia rebaudiana to increase sugar productivity. Inoculation of 45-day-old S. rebaudiana plantlets with Bacillus cereus and Azospirillum brasilense alone or in combination for 30 days allowed comparisons among their effects on enhancement and improvement of plant growth, production of bioactive compounds and expression of steviol glycoside genes. B. cereus SrAM1 isolated from surface-sterilized Stevia rebaudiana leaves was molecularly identified using 16s rRNA and tested for its ability to promote plant growth. Beneficial endophytic B. cereus SrAM1 induced all plant growth-promoting traits, except solubilization of phosphate, therefore it showed high effectiveness in the promotion of growth and production of bioactive compounds. Treatment of plants with B. cereus SrAM1 alone revealed carbohydrates content of 278.99 mg/g, total soluble sugar of 114.17 mg/g, total phenolics content of 34.05 mg gallic acid equivalent (GAE)/g dry weight) and total antioxidants activity of 32.33 mg (A.A)/g dry weight). Thus, plantlets inoculated with B. cereus SrAM1 alone exhibited the greatest responses in physiological and morphological parameters, but plantlets inoculated with B. cereus SrAM1 + A. brasilense showed a maximal upregulation of genes responsible for the biosynthesis of steviol glycosides (Kaurene oxidase, ent-KO; UDP-dependent glycosyl transferases of UGT85C2, UGT74G1, UGT76G1). Taken together, the used bacterial strains, particularly B. cereus SrAM1 could significantly improve the growth of S. rebaudiana via dynamic interactions in plants 
650 4 |a Journal Article 
650 4 |a Azospirillum brasilense 
650 4 |a Bacillus cereus 
650 4 |a Stevia rebaudiana 
650 4 |a Steviol glycosides 
650 4 |a UDP-Glycosyltransferases genes 
650 4 |a ent-KO 
650 7 |a Antioxidants  |2 NLM 
650 7 |a Diterpenes, Kaurane  |2 NLM 
650 7 |a Glucosides  |2 NLM 
650 7 |a Glycosides  |2 NLM 
650 7 |a Phosphates  |2 NLM 
650 7 |a RNA, Ribosomal, 16S  |2 NLM 
650 7 |a Sugars  |2 NLM 
650 7 |a stevioside  |2 NLM 
650 7 |a 0YON5MXJ9P  |2 NLM 
650 7 |a Uridine Diphosphate  |2 NLM 
650 7 |a 58-98-0  |2 NLM 
650 7 |a Gallic Acid  |2 NLM 
650 7 |a 632XD903SP  |2 NLM 
650 7 |a Transferases  |2 NLM 
650 7 |a EC 2.-  |2 NLM 
700 1 |a Abdelsattar, Amal M  |e verfasserin  |4 aut 
700 1 |a Heikal, Yasmin M  |e verfasserin  |4 aut 
700 1 |a El-Esawi, Mohamed A  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant physiology and biochemistry : PPB  |d 1991  |g 189(2022) vom: 15. Okt., Seite 24-34  |w (DE-627)NLM098178261  |x 1873-2690  |7 nnns 
773 1 8 |g volume:189  |g year:2022  |g day:15  |g month:10  |g pages:24-34 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2022.08.016  |3 Volltext 
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