Impacts of root sulfate deprivation on growth and elements concentration of globe amaranth (Gomphrena globosa L.) under hydroponic condition

Abstract

Sulfur (S) regarded as the fourth key element is mainly taken by the plant roots. However, some plants can also absorb atmospheric sulfides, which may be of great importance for ameliorating the environment and for farming as a green organic S fertilizer used to balance insufficient soil S content for intensive cultivation in China; H 2 S and mainly SO 2 are emitted to air as a result of the rapid industrialized and economic development. Globe amaranth (Gomphrena globosa L.) might be one of the plants that can use atmospheric sulfides for its growth. Therefore the effects of sulfate deprivation from root on its growth, S status and other elements concentration under hydroponic culture were explored firstly. Based on measurements of plant growth, biomass, nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), S, iron (Fe), manganese (Mn), copper (Cu), zinc (Zn), boron (B), and molybdenum (Mo) concentration, the results showed that S concentration in flower, shoot and root of plant without root sulfate supplied was increased with plant growth and development, symptoms of S deficiency disappeared and other elements concentration in plant tended to be nearly the same as the root sulfate-supplied plants. The interesting results might imply that globe amaranth may be able to live on the atmospheric sulfides as sulfur source.

Non-Specific Root Transport of Nutrient Gives Access to an Early Nutritional Indicator: The Case of Sulfate and Molybdate

“…The same was true for all three Arabidopsis genotypes (Table 2). The general response pattern can also be supported by results from the literature with the same or different species, for example, globe amaranth ( Gomphrena globosa ) [45], cabbage [29], wheat [6] and tomato [11]. A decrease in the [Mo]:[S] ratio resulting from an inadequate S supply seems to be a general response of higher plants, whatever their intrinsic requirements for S.…”

Changes in root chemical diversity along an elevation gradient of Changbai Mountain, China

“…Fine roots play an important role in plant functions and ecosystem processes (Norby and Jackson, 2000;Weemstra et al, 2017;Wang et al, 2021). Fine roots are the primary organs for plant resource acquisition, and nutrient release from decomposing roots is a key pathway for nutrient cycling in terrestrial ecosystems (Yuan and Chen, 2010;Haichar et al, 2014;Sun et al, 2021).…”

“…Fine roots are the primary organs for plant resource acquisition, and nutrient release from decomposing roots is a key pathway for nutrient cycling in terrestrial ecosystems (Yuan and Chen, 2010;Haichar et al, 2014;Sun et al, 2021). Many studies have focused on fine root structure and function, including the architectural structure and root morphology (Pregitzer et al, 2002;Iversen, 2014), root production (Yuan and Chen, 2012) and decomposition (Silver and Miya, 2001;Zhang and Wang, 2015), root economics spectrum (Kong et al, 2014;Zhou et al, 2018;Kong et al, 2019;Han and Zhu, 2021), geographic patterns of root traits (Yuan et al, 2011;De La Riva et al, 2018;Weemstra et al, 2021), coordinated variation in leaf and root traits (Newman and Hart, 2006;Zhao et al, 2016a;Weigelt et al, 2021), and root dynamics under global change (Norby and Jackson, 2000;Wang et al, 2015). Furthermore, the Global Root Trait (GRooT) database was created by integrating widespread root traits to improve our understanding of root functioning (Guerrero-Ramirez et al, 2021).…”

Sustainable and Biodegradable Copolymers from SO2 and Renewable Eugenol: A Novel Urea Fertilizer Coating Material with Superio Slow Release Performance

“…Therefore, to achieve the bulk utilization of SO 2 , some effective techniques should be invented in an eco-friendly route. Besides, scientific research proves that sulfur, as the most important element after nitrogen, phosphorus, and potassium, , is indispensable for the growth and development of food crops. Sulfur deficiency generally delays plant growth.…”