Evaluation of Commercial Fertilizer Based Medium for Desmodesmus abundans Cultivation and the Use of Microalgal Biomass as Biostimulant in Soybean Glycine max (L.) Merr.

被引：0

作者：

Goelzer, Ademir ^{[1
]}

Lopes, Graciela Beatris ^{[1
]}

Machado, Danilo Jose ^{[2
]}

Resende, Mario Lucio Vilela ^{[3
]}

Duarte, Whasley Ferreira ^{[2
]}

机构：

[1] Fed Univ Lavras UFLA, Nat Sci Inst ICN, Plant Physiol Sect, BR-37203202 Lavras, MG, Brazil

[2] Fed Univ Lavras UFLA, Nat Sci Inst ICN, Microbiol Agr Sect, BR-37203202 Lavras, MG, Brazil

[3] Fed Univ Lavras UFLA, Sch Agr Sci Lavras ESAL, Plant Pathol Sect, BR-37203202 Lavras, MG, Brazil

来源：

AGRONOMY-BASEL | 2025年 / 15卷 / 02期

关键词：

microalgae; medium low-cost; metabolome; biofertilizer; RESPONSES; PROTEIN; WATER; OIL;

D O I：

10.3390/agronomy15020344

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Microalgae have emerged as a promising renewable resource due to their biomass production and cell composition. This study aimed to evaluate a commercial nutrient source for Desmodesmus abundans L2B Bold cultivation, analyzing its metabolome, photosynthetic pigments, and biomass potential as a biostimulant for soybean crops. Samples underwent metabolomics analysis via GC/MS after derivatization. Microalgal biomass produced in a commercial fertilizer medium (CF) was applied as a biostimulant at three concentrations in soybean crops at 30, 50, and 70 days post-sowing. Pigments and dry biomass levels were similar in BG11 and CF media, but CF reduced production costs by 31.8%. Distinct metabolite profiles were observed, with major classes being organic acids (19%), amines (14%), sugars (12%), fatty acids (11%), and esters (10%). Foliar application of 20% (v/v) D. abundans L2B Bold increased stem diameter (5.88 mm), leaf fresh and dry mass, and stem mass. Additionally, there were increases in nitrogen (26%) and protein (38.1%) in seeds, alongside higher pod (10.9) and seed numbers (25.2) and seed mass (3.43 g) per plant-1. These findings demonstrate the feasibility of using CF as a culture medium and the potential of D. abundans L2B Bold as a biostimulant for soybean production.

引用

页数：18

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