Application of Serratia marcescensRZ‐21 significantly enhances peanut yield and remediates continuously cropped peanut soil

Abstract

This is the first report of S. marcescens being applied to continuously cropped peanut soil. The results suggest that S. marcescens RZ-21 has the potential to improve the soil environment and agricultural products and thus allow the development of sustainable management practices.

Phomopsis liquidambari colonization promotes continuous cropping peanut growth by improving the rhizosphere microenvironment, nutrient uptake and disease incidence

“…The soil urease (mg NH 4 + ‐N g −1 dry soil h −1 ), invertase (mg glucose g −1 dry soil h −1 ) and polyphenol oxidase (mg purple gallic prime g −1 dry soil 2 h −1 ) activities were determined as described by Dai et al . and Ma et al …”

“…Arachis hypogaea L. (peanut) is the predominant oil and cash crop throughout the world . China is a major peanut‐producing country, and the total planting area is approximately 5 million hectares per year, accounting for almost 35% of all oil crops . Peanuts not only contain high levels of oils, proteins and carbohydrates but are also a rich nutritional source of unsaturated fatty acids, mineral elements and medicinally active components, such as flavonoids and phenolic compounds, for human consumption .…”

“…However, because of the scarcity of arable land, water resource shortages and the vigorous development of intensive agricultural production patterns, peanuts are usually repeatedly monocropped for many years (even more than 20 years in the hilly regions of southern China) in the same fields; thus peanut has a limited ability to maintain or increase its production in China . Many studies have demonstrated that long‐term continuous cropping can give rise to soil microbiological deterioration, enzyme activity decrease, autotoxin accumulation and nutritional disorder; it increases the susceptibility of peanut to disease, which directly leads to a decline in peanut production and quality . Therefore, screening for an appropriate method to alleviate the obstacles of continuous cropping is significant for the sustainable development of peanut production.…”

“…However, this method has a wide range of hazardous effects for humans and the agricultural ecosystem . In contrast, the use of beneficial microbial agents, including mycorrhizal fungi, plant growth‐promoting bacteria and other antagonistic microorganisms to alleviate this problem has been considered to be a green and cost‐effective technology . However, few studies have reported the use of beneficial microbes to successfully alleviate the problems associated with continuous peanut cropping under field conditions.…”

Fungal endophyte Phomopsis liquidambari biodegrades soil resveratrol: a potential allelochemical in peanut monocropping systems

“…Environmental microorganisms are the major contributors to the bioremediation of toxic substances and plant residues, which is considered to be a permanent solution to the problem of contaminated environments . Specifically, fungi are thought to be crucial contributors due to their ability to produce specific enzymes and access new substrates through their hyphae .…”