Salinity and phosphorus availability differentially affect plant growth, leaf morphology, water relations, solutes accumulation and antioxidant capacity in <i>Aeluropus littoralis</i>

Zribi, Ons Talbi; Mbarki, Sonia; Metoui, Ouissal; Trabelsi, Najla; Zribi, Fethia; Ksouri, Riadh; Abdelly, Chédly

doi:10.1080/11263504.2020.1810808

Cited by 6 publications

(9 citation statements)

References 57 publications

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“…Plants show specific thresholds of soil accumulation to improve their performance and adapt to a given environment [ 1 , 2 ]. Salinity and element availability differentially affect growth, leaf morphology, water relations, solutes accumulation, and antioxidant capacity in plants [ 3 , 4 ]. It has been observed that the constant changes in the fertility of the soil occurred through various organic amendment practices [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Bhanwaria

Singh

Musarella

2022

Plants

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(1) Background: Arid conditions occur due to climate abnormality in the different biogeography regions of the world. The aim of this research is to investigate the stoichiometry of manure and moisture regimes on soil properties, microbial biomass C:N:P turnover, and the grain yield of mustard crops under stress in arid conditions; (2) Methods: The field experiment was carried out for 2 years at the farms of the agriculture college of SKN, Jobner (SKRAU Bikaner, Rajasthan). The effects of organic manure, moisture regimes, and saline water treatment on soil properties, such as the soil microbial biomass build-up, loss, turnover, and recycling of carbon (Cmic), nitrogen (Nmic), and phosphorus (Pmic) in the mustard crop were investigated. The twenty-seven treatments studied are described as follows: organic manures (control, FYM @ 10 t ha−1 and vermicompost @ 5 t ha−1), moisture regimes (0.4, 0.6, and 0.8 IW/CPE ratio), and saline irrigation water (control, 6, 12 dSm−1); (3) Results: Our findings indicate that vermicompost @ 5 t ha−1 significantly increases moisture retention and the available water in soil at 33 kPa and 1500 kPa. The microbial biomass build-up of Cmic increases by 43.13% over the control and 14.36% over the FYM. Similarly, the soil microbial biomass of Nmic, and Pmic also increase considerably. The SHC of the soil is enhanced by the application of farmyard fertilizer and vermicompost. The BD and pH decrease significantly, while the SHC, OC, CEC, and ECe of the soil increase significantly. The build-up, losses, and fluxes of the soil microbial biomass of Cmic, Nmic, and Pmic increase significantly, and the turnover rate decreases under vermicompost @ 5 t ha−1. A significant increase in grain yield was observed. Irrigation with a 0.8 IW/CPE moisture regime significantly decreases the pH of the SHC; (4) Conclusions: We hypothesized the interactive outcomes of the moisture regime and found that organic manure significantly influenced grain and stover yield. The treatments of quality irrigation water and the addition of organic manure are efficient enough to improve soil properties, water holding capacity, and soil microbial biomass C:N:P in stress climatic conditions.

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Section: Introductionmentioning

confidence: 99%

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Bhanwaria

Singh

Musarella

2022

Plants

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“…Indeed, all measured parameters indicate that the salt tolerance and plant growth were improved after the application of the P-soluble fertilizers. Furthermore, this beneficial effect has been shown in different plant species grown under salinity and supplied by contrasting P doses 31 – 33 , 39 , 40 , 48 , 67 , 68 .…”

Section: Discussionmentioning

confidence: 88%

“…2 C). Accordingly, in a recent study, a significant rise in P and K use efficiencies was observed in Aeluropus littoralis plants grown under salt stress and P deficiency conditions, which suggests that there is an efficient transfer of phosphorus from older organs to more youthful tissues in full growth activity 68 .…”

Section: Discussionmentioning

confidence: 93%

“…In such circumstances, plants would often employ defensive mechanisms, such as increasing their water use efficiency (WUE) and controlling the rate of transpiration and the net CO 2 levels in their leaves 36 . Accordingly, stomatal closure has a direct impact on plant growth and development under salt stress conditions, by preserving water in the plant tissue, reducing water loss through transpiration, and inhibiting cell expansion which ultimately leads to a reduction in plant biomass 68 , 74 . In addition, long-term exposure to salinity or/and P shortage interferes with metabolic mechanisms that regulate gas exchange, such as the triose phosphates regeneration, Rubisco and Ribulose-1,5-bisphosphate (RuBP) activities 35 .…”

Section: Discussionmentioning

confidence: 99%

“…Potassium's roles in plants include enzyme activation, stomatal control, cellular turgor maintenance, and phloem transport of photoassimilates 88 . Furthermore, it has been shown that most crops use P and K to reduce the negative effects of salt stress 5 , 29 , 31 – 33 , 39 , 48 , 68 , 88 , 89 . In the present study, the concentration of potassium (K) in shoots was similar for all salt-stressed and fertilized plants (Fig.…”

Section: Discussionmentioning

confidence: 99%

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Polyphosphate fertilizer impacts the enzymatic and non-enzymatic antioxidant capacity of wheat plants grown under salinity

Loudari

Latique

Mayane

et al. 2023

Sci Rep

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By 2050, the predicted global population is set to reach 9.6 billion highlighting the urgent need to increase crop productivity to meet the growing demand for food. This is becoming increasingly challenging when soils are saline and/or deficient in phosphorus (P). The synergic effect of P deficiency and salinity causes a series of secondary stresses including oxidative stress. Reactive Oxygen Species (ROS) production and oxidative damage in plants caused either by P limitation or by salt stress may restrict the overall plant performances leading to a decline in crop yield. However, the P application in adequate forms and doses could positively impact the growth of plants and enhances their tolerance to salinity. In our investigation, we evaluated the effect of different P fertilizers forms (Ortho-A, Ortho-B and Poly-B) and increasing P rates (0, 30 and 45 ppm) on the plant's antioxidant system and P uptake of durum wheat (Karim cultivar) grown under salinity (EC = 3.003 dS/m). Our results demonstrated that salinity caused a series of variations in the antioxidant capacity of wheat plants, at both, enzymatic and non-enzymatic levels. Remarkably, a strong correlation was observed between P uptake, biomass, various antioxidant system parameters and P rates and sources. Soluble P fertilizers considerably enhanced the total plant performances under salt stress compared with control plants grown under salinity and P deficiency (C+). Indeed, salt-stressed and fertilized plants exhibited a robust antioxidant system revealed by the increase in enzymatic activities of Catalase (CAT) and Ascorbate peroxidase (APX) and a significant accumulation of Proline, total polyphenols content (TPC) and soluble sugars (SS) as well as increased biomass, Chlorophyll content (CCI), leaf protein content and P uptake compared to unfertilized plants. Compared to OrthoP fertilizers at 45 ppm P, Poly-B fertilizer showed significant positive responses at 30 ppm P where the increase reached + 18.2% in protein content, + 156.8% in shoot biomass, + 93% in CCI, + 84% in shoot P content, + 51% in CAT activity, + 79% in APX activity, + 93% in TPC and + 40% in SS compared to C+. This implies that PolyP fertilizers might be an alternative for the suitable management of phosphorus fertilization under salinity.

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Physiological effects of seed priming on barley cultivated under phosphorus deficiency conditions

Talbi Zribi,

Slama,

Mbarki

et al. 2024

Euro-Mediterr J Environ Integr

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Salinity and phosphorus availability differentially affect plant growth, leaf morphology, water relations, solutes accumulation and antioxidant capacity in Aeluropus littoralis

Cited by 6 publications

References 57 publications

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Polyphosphate fertilizer impacts the enzymatic and non-enzymatic antioxidant capacity of wheat plants grown under salinity

Physiological effects of seed priming on barley cultivated under phosphorus deficiency conditions

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