Microecological mechanisms of mountainous forest cultivated ginseng growth vigor and saponin accumulation, and the characterization of bionic microbial fertilizer.
Fengyu Pang, Yugang Gao, Zhenqi Zhuang, Changju Li, Yan Zhao, Qun Liu
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引用次数: 0
Abstract
Introduction: A study on the soil microecological mechanisms influencing the growth vigor and saponin accumulation of mountainous forest cultivated ginseng (MFCG) under various forest types.
Methods: Using MFCG from different forest types as experimental material, the correlation and functional analysis of MFCG growth vigor, ginseng saponin content, and soil nutrient elements in their rhizosphere were conducted to clarify the soil microecological mechanisms by which different forest types affect the growth vigor and saponin accumulation of understory ginseng. Based on these microecological mechanisms, a bionic microbial fertilizer was developed and characterized.
Results: The agronomic traits and saponin content (Re, Rc, Rb2, and Rb3) of MFCG in the Pinus sylvestris var. mongholica Litv. (PSV) group were significantly higher than those in the Quercus mongolica Fisch. ex Ledeb. (QMF) and Larix gmelinii (Rupr.) Kuzen (LGK) groups (p < 0.05). The total content of these four monomeric saponins in the PSV group was 35.1 and 45.56% higher than that in the QMF and LGK groups, respectively. Significant differences (p < 0.05) were observed between the PSV group and the QMF and LGK groups in terms of the rhizosphere soil microbial diversity and physicochemical indicators such as nutrient elements. The agronomic traits and saponin content of MFCG were positively correlated with chemical indicators in the rhizosphere soil, including Cu, Ca, Mg, Zn, B, Fe, Mo, Mn, Organic matter (OM), Available phosphorus (AP), Available nitrogen (AN), and Available potassium (AK). Based on the microbial diversity and nutrient elements positively correlated with MFCG in the rhizosphere soil, a bionic microbial fertilizer formula was optimized.
Discussion: The microecological mechanism behind the growth vigor and saponin accumulation of understory ginseng involves an increase in beneficial microorganisms and nutrient elements, along with a reduction in harmful microorganisms and detrimental elements. The bionic microbial fertilizer promoted MFCG growth and saponin accumulation while improving soil nutrient levels, bulk density, and water-holding capacity.
前言：不同林型下影响山林栽培人参生长活力和皂苷积累的土壤微生态机制研究。方法：以不同林型MFCG为实验材料，对MFCG生长活力、人参皂苷含量及其根际土壤养分元素进行相关性分析和功能分析，阐明不同林型影响林下人参生长活力和皂苷积累的土壤微生态机制。基于这些微生态机制，开发并表征了一种仿生微生物肥料。结果：蒙古松MFCG的农艺性状和总皂苷含量（Re、Rc、Rb2、Rb3）比较。（PSV）组显著高于蒙古栎组。Ledeb交货。（QMF）和落叶松（Rupr.）Kuzen （LGK）组（p p ）讨论：林下人参生长活力和皂苷积累背后的微生态机制涉及有益微生物和营养元素的增加，以及有害微生物和有害元素的减少。仿生微生物肥促进MFCG生长和皂苷积累，提高土壤养分水平、容重和持水能力。
期刊介绍：
Frontiers in Microbiology is a leading journal in its field, publishing rigorously peer-reviewed research across the entire spectrum of microbiology. Field Chief Editor Martin G. Klotz at Washington State University is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, clinicians and the public worldwide.
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