Nutrient Management in Aquaponics: Comparison of Three Approaches for Cultivating Lettuce, Mint and Mushroom Herb DOI Creative Commons

Valentina Nozzi,

Andreas Graber, Zala Schmautz

et al.

Agronomy, Journal Year: 2018, Volume and Issue: 8(3), P. 27 - 27

Published: March 7, 2018

Nutrients that are contained in aquaculture effluent may not supply sufficient levels of nutrients for proper plant development and growth hydroponics; therefore, they need to be supplemented. To determine the required level supplementation, three identical aquaponic systems (A, B, C) one hydroponic system (D) were stocked with lettuce, mint, mushroom herbs. The Nile tilapia. System A only received derived from fish feed; B feed as well weekly supplements micronutrients Fe; C same macronutrients, P K; D, a inorganic solution containing N, Ca, was added weekly. Lettuce achieved highest yields C, mint herb B. present study demonstrated nutritional requirements make them suitable farming because require low supplement addition, hence little management effort, resulting minimal cost increases. While addition accelerated lettuce (Systems C), even surpassed (System vs. D), quality (polyphenols, nitrate content) better without supplementation.

Language: Английский

The effects of soil phosphorus content on plant microbiota are driven by the plant phosphate starvation response DOI Creative Commons
Omri M. Finkel, Isai Salas-González, Gabriel Castrillo

et al.

PLoS Biology, Journal Year: 2019, Volume and Issue: 17(11), P. e3000534 - e3000534

Published: Nov. 13, 2019

Phosphate starvation response (PSR) in nonmycorrhizal plants comprises transcriptional reprogramming resulting severe physiological changes to the roots and shoots repression of plant immunity. Thus, plant-colonizing microorganisms-the microbiota-are exposed direct influence by soil's phosphorus (P) content itself as well indirect effects soil P on microbial niches shaped plant. The individual contribution these factors microbiota assembly remains unknown. To disentangle effects, we planted PSR-deficient Arabidopsis mutants a long-term managed gradient compared composition their shoot root wild-type across different concentrations. PSR-deficiency had larger effect both bacterial fungal plant-associated than concentrations shoots. dissect plant-microbe interactions under variable conditions, conducted reconstitution experiment. Using 185-member synthetic community (SynCom) wide concentration an agar matrix, demonstrated shift bacteria from neutral or positive interaction negative one, measured rosette size. This phenotypic was accompanied composition: genus Burkholderia specifically enriched tissue starvation. Through drop-out experiment, that absence SynCom, accumulated higher ortophosphate (Pi) levels colonized with full SynCom but only Pi conditions. Therefore, Pi-stressed are susceptible colonization latent opportunistic competitors found within microbiome, thus exacerbating plant's

Language: Английский

Citations

167
Organic acids: versatile stress-response roles in plants DOI
Poonam Panchal, Tony Miller, Jitender Giri

et al.

Journal of Experimental Botany, Journal Year: 2021, Volume and Issue: 72(11), P. 4038 - 4052

Published: Jan. 19, 2021

Abstract Organic acids (OAs) are central to cellular metabolism. Many plant stress responses involve the exudation of OAs at root–soil interface, which can improve soil mineral acquisition and toxic metal tolerance. Because their simple structure, low-molecular-weight widely studied. We discuss conventional roles OAs, some newly emerging in more versatile role tolerance efficient chelating agents than other acids, such as amino acids. Root OA is important carbon sequestration. These functions key processes combating climate change helping with sustainable food production. briefly review mechanisms behind enhanced biosynthesis, secretion, regulation these activities under different stresses, provide an outline transgenic approaches targeted towards production secretion OAs. A recurring theme biology ‘acids’ modifying pH, ‘chelators’ binding metals, or ‘carbon sources’ for microbes. argue that multiple factors understanding molecules’ biology. Finally, we how could be used, identify unanswered questions.

Language: Английский

Citations

160
Plant adaptation to low phosphorus availability: Core signaling, crosstalks, and applied implications DOI Creative Commons
Javier Paz‐Ares, María Isabel Puga,

Mónica Rojas‐Triana

et al.

Molecular Plant, Journal Year: 2021, Volume and Issue: 15(1), P. 104 - 124

Published: Dec. 24, 2021

Language: Английский

Citations

136
WRKY33 negatively regulates anthocyanin biosynthesis and cooperates with PHR1 to mediate acclimation to phosphate starvation DOI Creative Commons
Han Tao, Fei Gao, Linying Li

et al.

Plant Communications, Journal Year: 2024, Volume and Issue: 5(5), P. 100821 - 100821

Published: Jan. 16, 2024

Anthocyanin accumulation is acknowledged as a phenotypic indicator under phosphate (Pi) starvation. However, the negative regulator of this process and molecular mechanisms remain largely unexplored. In study, our results revealed WRKY33 acts phosphorus-status-dependent anthocyanin biosynthesis. regulates expression dihydroflavonol 4-reductase (DFR), rate-limiting enzyme in production, direct indirect manner. directly binds to DFR promoter repress its or interacts with PAP1 by interfering MBW complex influence transcriptional activation indirectly. -Pi conditions, PHR1 interacted WRKY33, protein level decreased, thereby repression on attenuated, leading Arabidopsis. Further genetic biochemical assays suggest that also involved regulating factors impact turnover. Taken together, findings reveal Pi starvation represses repressor biosynthesis, finely tune This 'double-negative logic' regulation biosynthesis required for plants maintain metabolic homeostasis adaption

Language: Английский

Citations

23
Identification of vacuolar phosphate efflux transporters in land plants DOI
Lei Xu, Hongyu Zhao, Renjing Wan

et al.

Nature Plants, Journal Year: 2018, Volume and Issue: 5(1), P. 84 - 94

Published: Dec. 23, 2018

Language: Английский

Citations

153
Phosphorus nutrition in Proteaceae and beyond DOI
Hans Lambers, Patrick M. Finnegan, Ricarda Jost

et al.

Nature Plants, Journal Year: 2015, Volume and Issue: 1(8)

Published: Aug. 4, 2015

Language: Английский

Citations

151
Impact of N, P, K, and Humic Acid Supplementation on the Chemical Profile of Medical Cannabis (Cannabis sativa L) DOI Creative Commons
Nirit Bernstein, Jonathan Gorelick,

Roei Zerahia

et al.

Frontiers in Plant Science, Journal Year: 2019, Volume and Issue: 10

Published: June 17, 2019

Mineral nutrition is a major factor affecting plant growth and function. Increasing evidence supports the involvement of macro micronutrients in secondary metabolism. The use appropriate nutritional measures including organic fertilizers, supplements, biostimulants therefore vital aspect medicinal production medical cannabis. Due to legal restriction on cannabis research, very little information available concerning effects supplements physiological chemical properties cannabis, their potential role standardization active compounds material supplied patients. This study evaluated supplementations, humic acids (HAs) inorganic N, P, K affect cannabinoid profile throughout plant. plants were exposed three enhanced treatments, compared commercial control treatment. treatments supplemented with HA, P fertilization, or NPK. results demonstrate sensitivity cannabinoids metabolism mineral nutrition. affected content differently. These location organ specific, varied between cannabinoids. While enhancement treatment did not THC, CBD, CBN, CBG concentrations flowers from top plants, 16% reduction THC concentration was observed inflorescence leaves. Enhanced NPK HA also produced organ-specific spatially specific responses supplementation increased levels by 71%, lowered CBN both leaves 38 36%, respectively. found reduce natural spatial variability all studied. However, uniformity came at expense higher CBD reduced 37 39%, Changes composition areas plants. that influence an organ- spatial-dependent manner. Most importantly, confirm environmental factors regulate individual identified nutrient can be further developed for

Language: Английский

Citations

140
Recent insights into the metabolic adaptations of phosphorus-deprived plants DOI
D. M. S. B. Dissanayaka, Mina Ghahremani,

Meike Siebers

et al.

Journal of Experimental Botany, Journal Year: 2020, Volume and Issue: 72(2), P. 199 - 223

Published: Oct. 13, 2020

Inorganic phosphate (Pi) is an essential macronutrient required for many fundamental processes in plants, including photosynthesis and respiration, as well nucleic acid, protein, membrane phospholipid synthesis. The huge use of Pi-containing fertilizers agriculture demonstrates that the soluble Pi levels most soils are suboptimal crop growth. This review explores recent advances concerning understanding adaptive metabolic plants have evolved to alleviate negative impact nutritional deficiency. Plant starvation responses arise from complex signaling pathways integrate altered gene expression with post-transcriptional post-translational mechanisms. resultant remodeling transcriptome, proteome, metabolome enhances efficiency root acquisition soil, assimilated throughout plant. We emphasize how up-regulation high-affinity transporters intra- extracellular scavenging recycling enzymes, organic acid anion efflux, remodeling, remarkable flexibility plant metabolism bioenergetics contribute survival Pi-deficient plants. research field enabling development a broad range innovative promising strategies engineering phosphorus-efficient crops. Such cultivars urgently needed reduce inputs unsustainable non-renewable maximum agronomic benefit long-term global food security ecosystem preservation.

Language: Английский

Citations

128
Tackling Plant Phosphate Starvation by the Roots DOI Creative Commons

Hanne Crombez,

Hans Motte, Tom Beeckman

et al.

Developmental Cell, Journal Year: 2019, Volume and Issue: 48(5), P. 599 - 615

Published: March 1, 2019

Language: Английский

Citations

126
Speciation, toxicity, microbial remediation and phytoremediation of soil chromium contamination DOI

Shuyu Guo,

Chunqiao Xiao, Na Zhou

et al.

Environmental Chemistry Letters, Journal Year: 2020, Volume and Issue: 19(2), P. 1413 - 1431

Published: Oct. 23, 2020

Language: Английский

Citations

123