scholarly journals Effects of Biochar on Plant Growth and Cadmium Uptake: Case Studies on Asian Lotus (Nelumbo nucifera) and Chinese Sage (Salvia miltiorrhiza)

Author(s):  
Daike Tian ◽  
Amei Liu ◽  
Yanci Xiang
2009 ◽  
Vol 322 (1-2) ◽  
pp. 239-249 ◽  
Author(s):  
Maxime Dauthieu ◽  
Laurence Denaix ◽  
Christophe Nguyen ◽  
Frederic Panfili ◽  
Frederic Perrot ◽  
...  

2019 ◽  
Author(s):  
Ruihong Wang ◽  
Hongbo Guo ◽  
Juane Dong

Abstract Background: Our previous study found that male sterility in Salvia miltiorrhiza could result in stunted growth, decrease biomass, inhibit primary metabolism, and promote secondary metabolism, but their molecular mechanisms have not yet been elucidated. In this article, we investigated the underlying mechanism of plant growth and metabolism by using physiological analysis and mRNA sequencing (RNA-Seq). Results: In this study, transcriptomic and physiological analyses were performed to identify the effect on plant growth and metabolic production in male sterile mutants. Through GO and KEGG analysis it was found that the pathways were mainly enriched in processes including organ development, primary metabolic process and secondary metabolic process. Physiological analyses showed that the chloroplast structure of male sterile mutants of Salvia miltiorrhiza was abnormally developed, which could result in decrease in leaf gas exchange (A, E and gs), chlorophyll fluorescence (Fv, Fm and Fv/Fm), and the chlorophyll content. Transcriptomic analyses indicated that disproportionating enzyme 1 (DPE1) catalyzed the degradation of starch, while sucrose synthase 3 (SUS3) and cytosolic invertase 2 (CINV2) catalyzed the degradation of sucrose in S. miltiorrhiza. The results suggested that phenylalanine ammonialyase (PAL) played an important role in the biosynthesis of rosmarinic acid and salvianolic acid B, and flavone synthase (FLS) was an important enzyme catalyzing steps of flavonoid biosynthesis. High expression level of these enzyme genes in male sterile mutants resulted in high content of secondary metabolites. Conclusions: Our results from the physiological and transcriptome analyses reveal underlying mechanism of plant growth and metabolism in male sterile mutants, and provide insight into the crop production of S. miltiorrhiza.


2020 ◽  
Vol 67 (3-4) ◽  
pp. 225-229
Author(s):  
Jie Zhou ◽  
Zi-Xin Xu ◽  
Zhi-Fang Ran ◽  
Lei Fang ◽  
Lan-Ping Guo

Although treatments of smoke-water (SW) have been successfully used for promoting seed germination as well as plant growth, less reports have been documented on the influence of SW on the production of secondary metabolites in endophytes isolated from medicinal plants. The study investigated the effects of SW and its active compound butenolide (KAR1) on the accumulation of lipophilic tanshinones in endophyte Trichoderma atroviride D16 isolated from Salvia miltiorrhiza. Results showed that the mycelia of T. atroviride D16 treated with SW and KAR1 displayed a significant increase (P < 0.05) in the content of tanshinone I, which was evaluated with 2.26-fold (SW) and 1.86-fold (KAR1) of the control on 20 d after treatment. Comparing with the control, the treatment of SW and KAR1 resulted in a significant increase in the content of tanshinone IIA, and the highest levels were observed to be 31.87% (SW 1:2000, v/v) and 17.77% (KAR1 at 10-9 M) on 20 d after treatment. These findings imply the possibility of using SW and KAR1 for enhancing the biosynthesis of tanshinones in T. atroviride D16, and enrich the application of smoke water in the medicinal plant field.


Chemosphere ◽  
2014 ◽  
Vol 117 ◽  
pp. 367-373 ◽  
Author(s):  
Bao Chen ◽  
Yibin Zhang ◽  
Muhammad Tariq Rafiq ◽  
Kiran Yasmin Khan ◽  
Fengshan Pan ◽  
...  

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11749
Author(s):  
Yu-Rui Wu ◽  
Cui-Bai Li ◽  
Yan-Hong Wu ◽  
Lan Li ◽  
Bo Li ◽  
...  

The root-associated actinobacteria play important roles in plant growth, nutrient use, and disease resistance due to their functional diversity. Salvia miltiorrhiza is a critical medicinal plant in China. The root actinobacterial community structure has been studied; however, the functions of root-associated actinobacteria of S. miltiorrhiza have not been elucidated. This study aimed to decipher the diversity and function of the culturable root-associated actinobacteria in plant growth using culture-dependent technology and culturable microbe metagenomes. We isolated 369 strains from the root-associated actinobacteria, belonging to four genera, among which Streptomyces was dominant. Besides, the functional prediction revealed some pathways related to plant growth, nitrogen and phosphorus metabolism, and antagonistic pathogens. We systematically described the diversity and functions of the culturable root-associated actinobacteria community. Our results demonstrated that the culturable root-associated actinobacteria of S. miltiorrhiza have rich functionalities, explaining the possible contribution of culturable root-associated actinobacteria to S. miltiorrhiza’s growth and development. This study provides new insights into understanding the function of the culturable root-associated actinobacteria and can be used as a knowledge base for plant growth promoters and biological control agent development in agriculture.


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