Leaf morphophysiological changes induced by long-term drought in Jatropha curcas plants explain the resilience to extreme drought

Torre, Felipe Della; Ferreira, Bruno García; Lima, J. D.; Lemos-Filho, José Pires de; Rossiello, Roberto Oscar Pereyra; França, Marcel Giovanni Costa

doi:10.1016/j.jaridenv.2020.104381

Cited by 7 publications

(3 citation statements)

References 45 publications

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“…Plants were watered with tap water and a standard NPK solution was applied as a fertilizer (Hafez et al, 2020). One month later, barley plants were subjected to drought conditions (30% water) for two weeks, except the three control pots (90% water) (Della Torre et al, 2021;Khan et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

“…Plants were watered with tap water and a standard NPK solution was applied as a fertilizer ( Hafez et al., 2020 ). One month later, barley plants were subjected to drought conditions (30% water) for two weeks, except the three control pots (90% water) ( Della Torre et al., 2021 ; Khan et al., 2021 ). The growth condition of the greenhouse were maintained at 20–25 °C, relative humidity 45–50%, with a controlled light environment at 14/10 h ( Akhtar et al., 2021 ).…”

Section: Methodsmentioning

confidence: 99%

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Plant growth promoting rhizobacteria and biochar production from Parthenium hysterophorus enhance seed germination and productivity in barley under drought stress

et al. 2023

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Drought stress can significantly affect plant growth and development. Biochar (BC) and plant growth-promoting rhizobacteria (PGPR) have been found to increase plant fertility and development under drought conditions. The single effects of BC and PGPR in different plant species have been widely reported under abiotic stress. However, there have been relatively few studies on the positive role of PGPR, BC, and their combination in barley (Hordeum vulgare L.). Therefore, the current study investigated the effects of BC from Parthenium hysterophorus, drought tolerant PGPR (Serratia odorifera), and the combination of BC + PGPR on the growth, physiology, and biochemical traits of barley plants under drought stress for two weeks. A total of 15 pots were used under five treatments. Each pot of 4 kg soil comprised the control (T0, 90% water), drought stress alone (T1, 30% water), 35 mL PGPR/kg soil (T2, 30% water), 2.5%/kg soil BC (T3, 30% water), and a combination of BC and PGPR (T4, 30% water). Combined PGPR and BC strongly mitigated the negative effects of drought by improving the shoot length (37.03%), fresh biomass (52%), dry biomass (62.5%), and seed germination (40%) compared to the control. The PGPR + BC amendment treatment enhanced physiological traits, such as chlorophyll a (27.9%), chlorophyll b (35.3%), and total chlorophyll (31.1%), compared to the control. Similarly, the synergistic role of PGPR and BC significantly (p< 0.05) enhanced the antioxidant enzyme activity including peroxidase (POD), catalase (CAT), and superoxide dismutase (SOD) to alleviate the toxicity of ROS. The physicochemical properties (N, K, P, and EL) of the soils were also enhanced by (85%, 33%, 52%, and 58%) respectively, under the BC + PGPR treatment compared to the control and drought stress alone. The findings of this study have suggested that the addition of BC, PGPR, and a combination of both will improve the soil fertility, productivity, and antioxidant defense systems of barley under drought stress. Therefore, BC from the invasive plant P. hysterophorus and PGPR can be applied to water-deficient areas to improve barley crop production.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Plant growth promoting rhizobacteria and biochar production from Parthenium hysterophorus enhance seed germination and productivity in barley under drought stress

et al. 2023

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“…However, this closure of the stomata can lead to a reduction in the photosynthetic rate, as it restricts the intake of CO 2 . Additionally, it affects the plant's water potential and solute transportation [7,8]. This imbalance between light absorption and utilization can result in an overproduction of reactive oxygen species (ROS), potentially causing cellular damage and, in severe cases, leading to plant mortality [9,10].…”

Section: Introductionmentioning

confidence: 99%

Phenotypic Plasticity Index as a Strategy for Selecting Water-Stress-Adapted Coffee Genotypes

dos Santos,

de Freitas,

da Silva

et al. 2023

Plants

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The adaptive potential of plants is commonly used as an indicator of genotypes with higher breeding program potential. However, the complexity and interaction of plant metabolic parameters pose a challenge to selection strategies. In this context, this study aimed to explore phenotypic plasticity within the germplasm of Hybrid Timor coffee. Additionally, we assessed the utility of the multivariate phenotypic plasticity index (MVPi) as a promising tool to predict genotype performance across diverse climatic conditions. To achieve this, we evaluated the performance of seven accessions from the Hybrid Timor germplasm in comparison to the Rubi and IPR 100 cultivars, known for their susceptibility and resistance to drought, respectively. The experiment took place in a greenhouse under two conditions: one with normal soil moisture levels near maximum capacity, and the other with a water deficit scenario involving a period of no irrigation followed by rehydration. Data on physiological and biochemical factors were collected at three stages: before applying the water deficit, during its imposition, and after rehydration. Growth data were obtained by the difference between the beginning and end of the experimental period Furthermore, field evaluations of the productivity of the same genotypes were carried out over two consecutive seasons. Based on physiological and biochemical assessments, the MVPi was computed, employing Euclidean distance between principal component multivariate analysis scores. Subsequently, this index was correlated with growth and productivity data through linear regressions. Our findings reveal that the plastic genotypes that are capable of significantly altering physiological and biochemical parameters in response to environmental stimuli exhibited reduced biomass loss in both aerial and root parts. As a result, this positively influenced their productivity. Enhanced plasticity was particularly prominent in accessions from the MG Germplasm Collection: MG 311—Hybrid Timor UFV 428-02, MG 270—Hybrid Timor UFV 377-21, and MG 279—Hybrid Timor UFV 376-31, alongside the Rubi MG 1192 cultivar. The MVPi emerged as a valuable instrument to assess genotype adaptability and predict their performance under varying climatic scenarios.

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Response surface method for optimization of process variables for bioaccumulation of metals with Jatropha curcas on fly ash–amended soil

Jain

Tembhurkar

2023

Environ Monit Assess

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Leaf morphophysiological changes induced by long-term drought in Jatropha curcas plants explain the resilience to extreme drought

Cited by 7 publications

References 45 publications

Plant growth promoting rhizobacteria and biochar production from Parthenium hysterophorus enhance seed germination and productivity in barley under drought stress

Plant growth promoting rhizobacteria and biochar production from Parthenium hysterophorus enhance seed germination and productivity in barley under drought stress

Phenotypic Plasticity Index as a Strategy for Selecting Water-Stress-Adapted Coffee Genotypes

Response surface method for optimization of process variables for bioaccumulation of metals with Jatropha curcas on fly ash–amended soil

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