Responses of rubber tree seedlings (<i>Hevea brasiliensis</i>) to phosphorus deficient soils

Saengwilai, Patompong; Bootti, Peerapol; Klinnawee, Lompong

doi:10.1080/00380768.2022.2164675

Cited by 7 publications

(3 citation statements)

References 52 publications

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“…P deficiency has been shown to alter root system architecture to enhance P foraging and uptake in several species 9 , 26 . In rice, the effect of P deficiency on root system development depends on underlying genetic control 11 , 27 .…”

Section: Discussionmentioning

confidence: 99%

Rice straw-derived smoke water promotes rice root growth under phosphorus deficiency by modulating oxidative stress and photosynthetic gene expression

Pinit,

Ariyakulkiat,

Chaiwanon

2023

Sci Rep

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Plant-derived smoke has been shown to promote plant growth and seed germination, but its roles and mechanisms in response to nutrient deficiency stress remain unclear. Plants respond to phosphorus (P) deficiency by undergoing morphological, physiological, and transcriptional changes in order to improve nutrient uptake efficiency. Here, we showed that rice straw-derived smoke water could promote root growth in rice (Oryza sativa cv. Nipponbare) grown under P-sufficient and P-deficient conditions. Transcriptome analysis of the root tissues identified 1309 genes up-regulated and 1311 genes down-regulated by smoke water under P-deficient conditions. The GO terms ‘glutathione transferase activity’ and ‘photosynthesis—light reaction’ were found to be significantly enriched among the genes that were up- and down-regulated by smoke water, respectively. Biochemical analysis showed that smoke water reduced P-deficient-induced accumulation of H2O2 and malondialdehyde (MDA), a lipid peroxidation marker, reduced sucrose contents, but increased Fe accumulation. Furthermore, smoke water suppressed the expression of strigolactone biosynthesis genes, which were strongly induced by P deficiency as an adaptive strategy to improve root P uptake. These results revealed a potential mechanism by which smoke water promotes root growth and interacts with P deficiency-induced transcriptional regulation to mitigate P deficiency stress in rice.

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Section: Discussionmentioning

confidence: 99%

Rice straw-derived smoke water promotes rice root growth under phosphorus deficiency by modulating oxidative stress and photosynthetic gene expression

Pinit,

Ariyakulkiat,

Chaiwanon

2023

Sci Rep

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“…Insufficient phosphorus availability can impede ATP production, resulting in diminished photosynthetic activity and stunted plant growth. Numerous studies have demonstrated that limited phosphorus availability can reduce the photosynthetic rate in plants, resulting in diminished carbon fixation, plant growth and productivity [112,114,115]. For instance, a recent investigation explored the impact of low phosphorus availability on cotton genotypes with varying levels of tolerance.…”

Section: Biochemical Responses To Low Pmentioning

confidence: 99%

Phosphorus Plays Key Roles in Regulating Plants’ Physiological Responses to Abiotic Stresses

Khan

Siddique

Shabala

et al. 2023

Plants

118

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Phosphorus (P), an essential macronutrient, plays a pivotal role in the growth and development of plants. However, the limited availability of phosphorus in soil presents significant challenges for crop productivity, especially when plants are subjected to abiotic stresses such as drought, salinity and extreme temperatures. Unraveling the intricate mechanisms through which phosphorus participates in the physiological responses of plants to abiotic stresses is essential to ensure the sustainability of agricultural production systems. This review aims to analyze the influence of phosphorus supply on various aspects of plant growth and plant development under hostile environmental conditions, with a special emphasis on stomatal development and operation. Furthermore, we discuss recently discovered genes associated with P-dependent stress regulation and evaluate the feasibility of implementing P-based agricultural practices to mitigate the adverse effects of abiotic stress. Our objective is to provide molecular and physiological insights into the role of P in regulating plants’ tolerance to abiotic stresses, underscoring the significance of efficient P use strategies for agricultural sustainability. The potential benefits and limitations of P-based strategies and future research directions are also discussed.

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“…Furthermore, low-Pi stress triggers modifications in plant enzyme system activity, further contributing to the plant’s adaptation to Pi scarcity. For example, Pi deficiency inhibits the activity of ATP synthase, which subsequently impacts ATP and NADPH production, thereby reducing the photosynthetic rate, carbon fixation, and overall plant growth ( Carstensen et al., 2018 ; Garcia et al., 2023 ; Iqbal et al., 2023 ; Saengwilai et al., 2023 ). Enhancing the activities of sulfur lipid and glycolipid synthases, as well as phospholipid hydrolases, contributes to altering the composition of the lipid membrane.…”

Section: Introductionmentioning

confidence: 99%

SPX family response to low phosphorus stress and the involvement of ZmSPX1 in phosphorus homeostasis in maize

Luo,

Sahito,

Zhang

et al. 2024

Front. Plant Sci.

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Phosphorus (P) is a crucial macronutrient for plant growth and development, and low-Pi stress poses a significant limitation to maize production. While the role of the SPX domain in encoding proteins involved in phosphate (Pi) homeostasis and signaling transduction has been extensively studied in other model plants, the molecular and functional characteristics of the SPX gene family members in maize remain largely unexplored. In this study, we identified six SPX members, and the phylogenetic analysis of ZmSPXs revealed a close relationship with SPX genes in rice. The promoter regions of ZmSPXs were abundant in biotic and abiotic stress-related elements, particularly associated with various hormone signaling pathways, indicating potential intersections between Pi signaling and hormone signaling pathways. Additionally, ZmSPXs displayed tissue-specific expression patterns, with significant and differential induction in anthers and roots, and were localized to the nucleus and cytoplasm. The interaction between ZmSPXs and ZmPHRs was established via yeast two-hybrid assays. Furthermore, overexpression of ZmSPX1 enhanced root sensitivity to Pi deficiency and high-Pi conditions in Arabidopsis thaliana. Phenotypic identification of the maize transgenic lines demonstrated the negative regulatory effect on the P concentration of stems and leaves as well as yield. Notably, polymorphic sites including 34 single-nucleotide polymorphisms (SNPs) and seven insertions/deletions (InDels) in ZmSPX1 were significantly associated with 16 traits of low-Pi tolerance index. Furthermore, significant sites were classified into five haplotypes, and haplotype5 can enhance biomass production by promoting root development. Taken together, our results suggested that ZmSPX family members possibly play a pivotal role in Pi stress signaling in plants by interacting with ZmPHRs. Significantly, ZmSPX1 was involved in the Pi-deficiency response verified in transgenic Arabidopsis and can affect the Pi concentration of maize tissues and yield. This work lays the groundwork for deeper exploration of the maize SPX family and could inform the development of maize varieties with improved Pi efficiency.

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Responses of rubber tree seedlings (Hevea brasiliensis) to phosphorus deficient soils

Cited by 7 publications

References 52 publications

Rice straw-derived smoke water promotes rice root growth under phosphorus deficiency by modulating oxidative stress and photosynthetic gene expression

Rice straw-derived smoke water promotes rice root growth under phosphorus deficiency by modulating oxidative stress and photosynthetic gene expression

Phosphorus Plays Key Roles in Regulating Plants’ Physiological Responses to Abiotic Stresses

SPX family response to low phosphorus stress and the involvement of ZmSPX1 in phosphorus homeostasis in maize

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