Role of Root Hydraulics in Plant Drought Tolerance

Alagoz, Soheyla Mohammadi; Zahra, Noreen; Kamrani, Monireh Hajiaghaei; Lajayer, Behnam Asgari; Nobaharan, Khatereh; Astatkie, Tess; Siddique, Kadambot H.M.; Farooq, Muhammad

doi:10.1007/s00344-022-10807-x

Cited by 31 publications

(16 citation statements)

References 152 publications

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“…In such circumstances, the water uptake is enhanced by a combination of absorptive root structures, such as increasing lateral root formation (root ramification), root hair density, and length (specific surface enhancement) with a consequent increase in root surface, volume, and biomass. Furthermore, water influx enhancement involves changes in the organization pattern of epidermal, cortical, and vascular root tissue systems that modulate the root system’s hydraulic conductivity [ 75 ]. Among them are the number and arrangement of cell layers, apoplastic resistivity to water flux, metaxylem number, diameter and distribution, and increased density of water channel transmembrane transporters (i.e., aquaporin).…”

Section: Stress Tolerance Mechanisms Mediated By Plant Growth-promoti...mentioning

confidence: 99%

“…Nevertheless, considering the concept of plant phenotypic plasticity under harsh environmental conditions [ 82 ], changes in plant microstructure would increase the plant body’s ability to store and circulate water. Among them are the increased plant cell vacuolization, increased water storage specialized cells, and changes in the volume ratio of the apoplastic and symplastic compartments [ 75 , 83 ]. Furthermore, these integrative mechanisms of plant water conservation favor the induction of plant response enzymatic–metabolic machinery related to cell protection and damage restoration (i.e., ROS production associated with biological membranes and biomolecule damage).…”

Section: Stress Tolerance Mechanisms Mediated By Plant Growth-promoti...mentioning

confidence: 99%

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Mechanisms and Applications of Bacterial Inoculants in Plant Drought Stress Tolerance

et al. 2023

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Agricultural systems are highly affected by climatic factors such as temperature, rain, humidity, wind, and solar radiation, so the climate and its changes are major risk factors for agricultural activities. A small portion of the agricultural areas of Brazil is irrigated, while the vast majority directly depends on the natural variations of the rains. The increase in temperatures due to climate change will lead to increased water consumption by farmers and a reduction in water availability, putting production capacity at risk. Drought is a limiting environmental factor for plant growth and one of the natural phenomena that most affects agricultural productivity. The response of plants to water stress is complex and involves coordination between gene expression and its integration with hormones. Studies suggest that bacteria have mechanisms to mitigate the effects of water stress and promote more significant growth in these plant species. The underlined mechanism involves root-to-shoot phenotypic changes in growth rate, architecture, hydraulic conductivity, water conservation, plant cell protection, and damage restoration through integrating phytohormones modulation, stress-induced enzymatic apparatus, and metabolites. Thus, this review aims to demonstrate how plant growth-promoting bacteria could mitigate negative responses in plants exposed to water stress and provide examples of technological conversion applied to agroecosystems.

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Section: Stress Tolerance Mechanisms Mediated By Plant Growth-promoti...mentioning

confidence: 99%

Section: Stress Tolerance Mechanisms Mediated By Plant Growth-promoti...mentioning

confidence: 99%

Mechanisms and Applications of Bacterial Inoculants in Plant Drought Stress Tolerance

et al. 2023

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“…Plant growth depends on the absorption of water from the soil and its transfer from roots to other plant parts. Therefore, understanding droughtinduced changes to root anatomical traits is important to enhance plant drought adaptation (Alagoz et al, 2022). Different plant growth regulators respond differently to plant DS.…”

Section: Challenges Improvements and Developmentsmentioning

confidence: 99%

Drought stress identification of tomato plant using multi-features of hyperspectral imaging and subsample fusion

Weng

Ma²,

Tao³

et al. 2023

Front. Plant Sci.

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Drought stress (DS) is one of the most frequently occurring stresses in tomato plants. Detecting tomato plant DS is vital for optimizing irrigation and improving fruit quality. In this study, a DS identification method using the multi-features of hyperspectral imaging (HSI) and subsample fusion was proposed. First, the HSI images were measured under imaging condition with supplemental blue lights, and the reflectance spectra were extracted from the HSI images of young and mature leaves at different DS levels (well-watered, reduced-watered, and deficient-watered treatment). The effective wavelengths (EWs) were screened by the genetic algorithm. Second, the reference image was determined by ReliefF, and the first four reflectance images of EWs that are weakly correlated with the reference image and mutually irrelevant were obtained using Pearson’s correlation analysis. The reflectance image set (RIS) was determined by evaluating the superposition effect of reflectance images on identification. The spectra of EWs and the image features extracted from the RIS by LeNet-5 were adopted to construct DS identification models based on support vector machine (SVM), random forest, and dense convolutional network. Third, the subsample fusion integrating the spectra and image features of young and mature leaves was used to improve the identification further. The results showed that supplemental blue lights can effectively remove the high-frequency noise and obtain high-quality HSI images. The positive effect of the combination of spectra of EWs and image features for DS identification proved that RIS contains feature information pointing to DS. Global optimal classification performance was achieved by SVM and subsample fusion, with a classification accuracy of 95.90% and 95.78% for calibration and prediction sets, respectively. Overall, the proposed method can provide an accurate and reliable analysis for tomato plant DS and is hoped to be applied to other crop stresses

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“…Potassium is an important macro-nutrient that is crucial for maintaining the water balance of plants and increasing their tolerance to drought stress (Van Vliet and Giller, 2017). Similarly, AMF symbiosis can improve nutrient uptake, root hydraulic conductivity, and water absorption of plants (Boutasknit et al, 2020;Mohammadi Alagoz et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Nurturing with Nature: The Efficacy of Arbuscular Mycorrhizal Fungi Microbe for Cocoa Sector Environmental Management in Ghana

Muhammed,

Kaba,

Yamoah

et al. 2024

Preprint

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Despite the proven effectiveness of fertility-promoting microbes such as Arbuscular Mycorrhizal fungi (AMF) to minimize the adverse effects of environmental deterioration and climate change, there is limited understanding on its efficacy to improve cocoa resilience in Ghana. Cocoa mortality (70%) caused by climate change induced drought within two years of transplanting to the field is a major constrain to farmers’ productivity. We assessed the effect of morphologically identified AMF and K on the biochemical characteristics of cocoa and its field survival from 2019 to 2022. The AMF inoculum was prepared using the trap-culture technique. Multivariate Adaptive Regression Splines predicted leaf chlorophyll and Phosphorus uptake as the key factor influencing cocoa survival and resilience under field condition. The results have implications for cocoa breeding, productivity, sustainability of cocoa agricultural systems as well as K nutrition and AMF as bio-stimulant under drought conditions.

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Role of Root Hydraulics in Plant Drought Tolerance

Cited by 31 publications

References 152 publications

Mechanisms and Applications of Bacterial Inoculants in Plant Drought Stress Tolerance

Mechanisms and Applications of Bacterial Inoculants in Plant Drought Stress Tolerance

Drought stress identification of tomato plant using multi-features of hyperspectral imaging and subsample fusion

Nurturing with Nature: The Efficacy of Arbuscular Mycorrhizal Fungi Microbe for Cocoa Sector Environmental Management in Ghana

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