The effect of different species of cyanobacteria on the rice yield and nitrogen use efficiency under different levels of nitrogen fertilizer on Alluvial West Java

Purwani, Jati; Pratiwi, Etty; Sipahutar, Ibrahim Adamy; Husnain,

doi:10.1088/1755-1315/648/1/012196

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…Although the application of nitrogen fertilizer has greatly increased the yield of rice, it has also led to problems such as the reduction of nitrogen use efficiency (Purwani et al 2021), the aggravation of water eutrophication (Yin et al 2007) and soil hardening (Meng et al 2005), which have brought enormous pressure to the ecological environment. How to ensure high yield on the premise of reducing the amount of nitrogen fertilizer has become one of the main challenges faced by rice breeding researchers.…”

Section: Introductionmentioning

confidence: 99%

Mapping of Candidate Genes in Response to Low Nitrogen in Rice Seedlings

Wei

Wang

et al. 2022

Rice

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Nitrogen is not only a macronutrient essential for crop growth and development, but also one of the most critical nutrients in farmland ecosystem. Insufficient nitrogen supply will lead to crop yield reduction, while excessive application of nitrogen fertilizer will cause agricultural and eco-environment damage. Therefore, mining low-nitrogen tolerant rice genes and improving nitrogen use efficiency are of great significance to the sustainable development of agriculture. This study was conducted by Genome-wide association study on a basis of two root morphological traits (root length and root diameter) and 788,396 SNPs of a natural population of 295 rice varieties. The transcriptome of low-nitrogen tolerant variety (Longjing 31) and low-nitrogen sensitive variety (Songjing 10) were sequenced between low and high nitrogen treatments. A total of 35 QTLs containing 493 genes were mapped. 3085 differential expressed genes were identified. Among these 493 genes, 174 genes showed different haplotype patterns. There were significant phenotype differences among different haplotypes of 58 genes with haplotype differences. These 58 genes were hypothesized as candidate genes for low nitrogen tolerance related to root morphology. Finally, six genes (Os07g0471300, Os11g0230400, Os11g0229300, Os11g0229400, Os11g0618300 and Os11g0229333) which expressed differentially in Longjing 31 were defined as more valuable candidate genes for low-nitrogen tolerance. The results revealed the response characteristics of rice to low-nitrogen, and provided insights into regulatory mechanisms of rice to nitrogen deficiency.

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Section: Introductionmentioning

confidence: 99%

Mapping of Candidate Genes in Response to Low Nitrogen in Rice Seedlings

Wei

Wang

et al. 2022

Rice

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“…In the present study, the phylum Cyanobacteria constituted more than 60% of the root endosphere communities. It is noteworthy that some Cyanobacteria have the ability to fix nitrogen through photosynthesis, and inner diazotrophic bacteria have been well documented in rice, maize, sugarcane, and some gramineous energy plants ( Roesch et al., 2007 ; Thaweenut et al., 2010 ; Zhang et al., 2019 ; Purwani et al., 2021 ). Nitrogen-fixing microorganism is a kind of microorganism that can convert nitrogen into ammonia.…”

Section: Discussionmentioning

confidence: 99%

Integrated microbiome and metabolomics analysis reveal the relationship between plant-specialized metabolites and microbial community in Phellodendron amurense

Zhang,

Gao,

Tian

et al. 2024

Front. Plant Sci.

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Phellodendron amurense is the essential source of bisbenzylisoquinoline alkaloids (BIAs), making it a highly valued raw material in traditional Chinese medicine. The plant’s root secondary metabolism is intricately linked to the microbial communities that surround it. However, the root-associated microbiomes of P. amurense, as well as the potential correlation between its bioactive compounds and these microbiomes, remain poorly understood. Here, the metabolic profiles of root, rhizosphere, and bulk soils of P. amurense revealed the dramatic differences in the relative content of plant-specialized metabolites. A total of 31, 21, and 0 specialized metabolites in P. amurense were identified in the root, rhizosphere soil, and bulk soil, respectively, with higher content of the seven major BIAs observed in the rhizosphere compared with that in the bulk soils. The composition of the bulk and rhizosphere microbiomes was noticeably distinct from that of the endospheric microbiome. The phylum Cyanobacteria accounted for over 60% of the root endosphere communities, and the α-diversity in root was the lowest. Targeted seven BIAs, namely, berberine, palmatine, magnocurarine, phellodendrine, jatrorrhizine, tetrahydropalmatine, and magnoflorine, were significantly positively correlated with Nectriaceae and Sphingobacteriaceae. This study has illuminated the intricate interaction networks between P. amurense root-associated microorganisms and their key chemical compounds, providing the theoretical foundation for discovering biological fertilizers and laying the groundwork for cultivating high-quality medicinal plants.

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“…However, excessive nitrogen can reduce plant disease resistance, hindering the capacity for the accumulation of active ingredients in medicinal plants. The excessive use of nitrogen fertilizer 16 can also increase soil caking 17 and other potentially serious environmental consequences. Hence, it is crucial to determine the dosage of nitrogen fertilizer that will maximize the quantity and quality of A. argyi leaves without contaminating the surrounding ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Mechanisms governing the impact of nitrogen stress on the formation of secondary metabolites in Artemisia argyi leaves

Wang

Zhao

et al. 2023

Sci Rep

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Nitrogen is a key factor in various physiological and metabolic processes in plants. Providing an adequate supply of nitrogen is essential for improving the total yield and quality of the medicinal plant Artemisia argyi (A. argyi), but the underlying mechanisms of how this nutrient alters the crop remains unclear. In this study, we conducted a series of pot experiments to investigate the agronomic traits and active components in the leaves of A. argyi plants under low and high nitrogen stress. Additionally, we used transcriptome analysis and RT-qPCR to explore the molecular pathways associated with nitrogen stress. Our results demonstrate a dramatic increase in the accumulation of phenolic acids and flavonoids in the low nitrogen (LN) stress group compared to the control (CK), with increases of 40.00% and 79.49%, respectively. Interestingly, plants in the high nitrogen (HN) stress group exhibited enhanced plant growth with larger leaves, thicker stems, and a 3% increase in volatile oil content compared to the CK. Moreover, A. argyi in the HN group displayed a 66% increase in volatile oil concentration compared to the LN group. Our combined transcriptome and q-PCR results indicate that LN stress promotes the expression of genes involved in flavonoid synthesis, while HN stress promotes the expression of genes related to terpene skeleton production and photosynthesis. Taken together, these findings suggest that different gene expression levels under LN and HN stress contribute to the photosynthesis capacity and the accumulation of active ingredients in A. argyi leaves. Our results elucidate the physiological and molecular mechanisms of nitrogen stress on A. argyi secondary metabolites and guide fertilization strategies for plant cultivation.

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The effect of different species of cyanobacteria on the rice yield and nitrogen use efficiency under different levels of nitrogen fertilizer on Alluvial West Java

Cited by 3 publications

References 15 publications

Mapping of Candidate Genes in Response to Low Nitrogen in Rice Seedlings

Mapping of Candidate Genes in Response to Low Nitrogen in Rice Seedlings

Integrated microbiome and metabolomics analysis reveal the relationship between plant-specialized metabolites and microbial community in Phellodendron amurense

Mechanisms governing the impact of nitrogen stress on the formation of secondary metabolites in Artemisia argyi leaves

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