Crop root Exudate Composition‐Dependent Disassembly of Lignin‐Fe‐Hydroxyapatite Supramolecular Structures: A Better Rhizosphere Sensing Platform for Smart Fertilizer Development

Abstract

avoid food shortages. However, the implementation of intensive agricultural practices such as excessive irrigation, tillage, and chemical fertilizers to increase crop productivity has devastated soil and farmland quality. [1,2] Particularly, acidification, salinization, and organic matter decomposition in soils typically coincide with agriculture practices, which adversely affect crop productivity and soil fertility. [3][4][5] Additionally, the inefficient absorption of conventional chemical NPK (i.e., nitrogen, phosphorus, and potassium) fertilizers by plants are among the main drivers of environmental eutrophication. [6] Therefore, many efforts are being made to develop novel strategies to overcome these drawbacks, including new types of fertilizers that can both maximize crop nutrient use efficiency and restore soil quality. [7,8] Novel smart fertilizer structures should not only be sensitive to crop rhizosphere, thus selectively releasing NPK or other crop macronutrients, but should also be made with non-toxic and low-cost materials. Crop nutrient use is maximized when the sensing ability of smart fertilizers is coupled with slow-releasing activity,

Exolaccase Propels Humification to Decontaminate Bisphenol A and Create Humic-like Biostimulants

“…It needs to be emphasized that the interaction of BPA-HP copolymeric precipitates and radish root was associated with the mild stress-triggered responses at the root surface by the accumulation and decomposition processes of BPA-HP copolymers. ,, These results demonstrated that the formed BPA-HP copolymeric precipitates by E-PH had a huge potential to be used in agricultural productivity. Further research should be focused on (1) the radioactive labeling of H-LBs to track their movement in plant roots, (2) the development of a rhizosphere sensing platform to detect the relationship between root exudates and H-LBs, (3) the main targets of H-LBs in plant-growth promotion to uncover plant hormone pathways and gene-enzyme relationships, and (4) the practical application of H-LBs in soil amelioration to enhance agricultural productivity and sustainability. , …”

“…19,27,46 These results demonstrated that the formed BPA-HP copolymeric precipitates by E-PH had a huge potential to be used in agricultural productivity. Further research should be focused on (1) the radioactive labeling of H-LBs to track their movement in plant roots, (2) the development of a rhizosphere sensing platform to detect the relationship between root exudates and H-LBs, 47 (3) the main targets of H-LBs in plant-growth promotion to uncover plant hormone pathways and gene-enzyme relationships, and (4) the practical application of H-LBs in soil amelioration to enhance agricultural productivity and sustainability. 19,48 ■ ASSOCIATED CONTENT * sı Supporting Information…”

Microbial Volatile Organic Compound (VOC)-Driven Dissolution and Surface Modification of Phosphorus-Containing Soil Minerals for Plant Nutrition: An Indirect Route for VOC-Based Plant–Microbe Communications

“…The prolonged release effects with incubation times of up to 56 days were also typical of the surface engineering of P-containing ceramics. 10,35,36 It is important to note that the MVOC-induced increase in the available P in the soil even occurred without adding calcium phosphate powder (Figure S6B), indicating that the inherent P-containing minerals of the soil are strongly affected by the MVOCs.…”

Lignin Metabolism by Selected Fungi and Microbial Consortia for Plant Stimulation: Implications for Biologically Active Humus Genesis

“…Inherent absorbances of the powders in the solutions at 420 nm were compensated. Total phenolic contents were assessed as described previously ( 38 ). Briefly, the powders (15 mg of selected fungal cultures, 3 mg of microbial consortia, and the corresponding amounts of the controls) were dissolved in distilled water (2.25 mL) containing Folin-Ciocalteu phenol reagent (0.25 mL).…”