Salicylic acid (SA)-mediated plant immunity against biotic stresses: An insight on molecular components and signaling mechanism

Plant Stress, Год журнала: 2024, Номер 11, С. 100427 - 100427

Опубликована: Март 1, 2024

Since the beginning of 21st century, climate change has been pervasive. Such climatic instabilities not only trigger plants' adaptability and survivability in harsh environments, but also sustain spread a broad spectrum pathogens including bacteria, fungi, viruses, that create disease pressure by affecting plant health immune barrier. Salicylic acid (SA) is potent phytohormone signaling molecule plays pivotal roles physio-biochemical processes during development. In addition to its widely known role abiotic stress response, SA vital response biotic stresses through their pathways, molecular interactions, corresponding interactions with other phytohormones like jasmonic acid, ethylene, abscisic etc. this perspective, dictated plethora interacting genes, proteins, transcription factors (TFs). The genes genetic regulators (TFs regulatory proteins) are associated fine-tune activating systemic localized cascade, triggering for pathogenesis-related (PR) phytoalexins, etc., modulate pathogen effectors. way, boosts plant's system acquired resistance (SAR) induced (ISR). addition, gene editing epigenetic regulation SA-responsive valuable innovative tools understand decipher complex SA-involved mechanism future utilities make climate-adaptive plants resistance.

Язык: Английский

---

Mechanisms of Plant Epigenetic Regulation in Response to Plant Stress: Recent Discoveries and Implications

Plants, Год журнала: 2024, Номер 13(2), С. 163 - 163

Опубликована: Янв. 7, 2024

Plant stress is a significant challenge that affects the development, growth, and productivity of plants causes an adverse environmental condition disrupts normal physiological processes hampers plant survival. Epigenetic regulation crucial mechanism for to respond adapt stress. Several studies have investigated role DNA methylation (DM), non-coding RNAs, histone modifications in responses. However, there are various limitations or challenges translating research findings into practical applications. Hence, this review delves recent recovery, implications, applications epigenetic response To better understand under stress, we reviewed published last 5-10 years made contributions, analyzed novel techniques technologies advanced field, such as next-generation sequencing genome-wide profiling modifications. We emphasized breakthrough uncovered specific genes pathways potential implications understanding agriculture, crop improvement, sustainability. Finally, concluded holds immense significance its mechanisms tolerance can revolutionize breeding genetic engineering strategies, leading evolution stress-tolerant crops ensuring sustainable food production face climate change other challenges. Future field will continue unveil intricacies improvement.

Язык: Английский

---

Crosstalk between RNA m6A modification and epigenetic factors in plant gene regulation

Plant Communications, Год журнала: 2024, Номер 5(10), С. 101037 - 101037

Опубликована: Июль 6, 2024

N6-methyladenosine (m6A) is the most abundant modification observed in eukaryotic mRNAs. Advances transcriptome-wide m6A mapping and sequencing technologies have enabled identification of several conserved motifs plants, including RRACH (R = A/G H A/C/U) UGUAW (W U or A) motifs. However, mechanisms underlying deposition marks at specific positions individual transcripts remain to be clarified. Evidence from plant animal studies suggests that writer eraser components are recruited genomic loci through interactions with particular transcription factors, 5-methylcytosine DNA methylation marks, histone marks. In addition, recent cells shown microRNAs play a role depositing sites base-pairing mechanism. also affects biogenesis function chromatin-associated regulatory RNAs long noncoding RNAs. Although we less an understanding link between epigenetic factors plants than animals, progress identifying proteins interact has provided insights into crosstalk which plays crucial transcript-specific regulation plants.

Язык: Английский

---

Physio-biochemical and DNA methylation analysis of the defense response network of wheat to drought stress

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 209, С. 108516 - 108516

Опубликована: Март 16, 2024

Язык: Английский

---

Titanium dioxide nanoparticles alleviates polystyrene nanoplastics induced growth inhibition by modulating carbon and nitrogen metabolism via melatonin signaling in maize

Journal of Nanobiotechnology, Год журнала: 2024, Номер 22(1)

Опубликована: Май 17, 2024

Abstract Background Nanoplastics, are emerging pollutants, present a potential hazard to food security and human health. Titanium dioxide nanoparticles (Nano-TiO 2 ), serving as nano-fertilizer in agriculture, may be important alleviating polystyrene nanoplastics (PSNPs) toxicity. Results Here, we performed transcriptomic, metabolomic physiological analyzes identify the role of Nano-TiO regulating metabolic processes PSNPs-stressed maize seedlings ( Zea mays L.). The growth inhibition by PSNPs stress was partially relieved . Furthermore, when considering outcomes obtained from RNA-seq, enzyme activity, metabolite content analyses, it becomes evident that significantly enhance carbon nitrogen metabolism levels plants. In comparison plants were not subjected , exposed exhibited enhanced capabilities maintaining higher rates photosynthesis, sucrose synthesis, assimilation, protein synthesis under stressful conditions. Meanwhile, alleviated oxidative damage modulating antioxidant systems. Interestingly, also found endogenous melatonin seedlings. P -chlorophenylalanine p -CPA, inhibitor) declined -induced tolerance. Conclusions Taken together, our data show is involved promotion through regulation metabolism. Graphical

Язык: Английский

---

The complex transcriptional regulation of heat stress response in maize

Stress Biology, Год журнала: 2024, Номер 4(1)

Опубликована: Апрель 26, 2024

As one of the most important food and feed crops worldwide, maize suffers much more tremendous damages under heat stress compared to other plants, which seriously inhibits plant growth reduces productivity. To mitigate heat-induced adapt high temperature environment, plants have evolved a series molecular mechanisms sense, respond temperatures stress. In this review, we summarized recent advances in regulations underlying sensing, response memory maize, especially focusing on several pathways signals complex transcriptional regulation ZmHSFs (Heat Shock Factors) response. addition, highlighted interactions between epigenetic factors coordinately regulating memory. Finally, laid out strategies systematically elucidate regulatory network response, discussed approaches for breeding future heat-tolerance maize.

Язык: Английский

---

The role of epigenetics in plant pathogens interactions under the changing environments; A systematic review

Plant Stress, Год журнала: 2025, Номер unknown, С. 100753 - 100753

Опубликована: Янв. 1, 2025

Язык: Английский

---

Seed Priming with Salicylic Acid Alleviates Salt Stress Toxicity in Barley by Suppressing ROS Accumulation and Improving Antioxidant Defense Systems, Compared to Halo- and Gibberellin Priming

Antioxidants, Год журнала: 2023, Номер 12(9), С. 1779 - 1779

Опубликована: Сен. 18, 2023

Plants are highly sensitive to various environmental stresses, which can hinder their growth and reduce yields. In this study, we investigated the potential of seed priming with salicylic acid (SA), gibberellic (GA3), sodium chloride (NaCl) mitigate adverse effects salinity stress in Hordeum vulgare at germination early seedling stages. Exposing H. seeds salt reduced final percentage shoot root growth. Interestingly, all treatments significantly improved salt-induced responses, GA3 being more effective terms performance, plant growth, photosynthesis. SA exhibited promising on antioxidant defense mechanisms, proline, sugar, ascorbic production. Notably, also suppressed reactive oxygen species accumulation prevented lipid peroxidation. These findings highlight ability manage crosstalk within seed, coordinating many regulatory processes support adaptation stress.

Язык: Английский

---

Characteristics ofSalvia miltiorrhizamethylome and the regulatory mechanism of DNA methylation in tanshinone biosynthesis

Horticulture Research, Год журнала: 2023, Номер 10(7)

Опубликована: Май 31, 2023

Salvia miltiorrhiza is a model medicinal plant with significant economic and value. Its roots produce group of diterpenoid lipophilic bioactive components, termed tanshinones. Biosynthesis regulation tanshinones has attracted widespread interest. However, the methylome S. not been analysed regulatory mechanism DNA methylation in tanshinone production largely unknown. Here we report single-base resolution methylomes from leaves. Comparative analysis revealed differential patterns for CG, CHG, CHH contexts association between expression genes small RNAs. Lowly methylated always had higher levels 24-nucleotide sRNAs could be key players RdDM pathway miltiorrhiza. variation showed that contributed mostly to difference. Go enrichment biosynthetic process was significantly enriched downstream overlapping hypoCHHDMR July_root when comparing those March_root. Tanshinone biosynthesis-related enzyme genes, such as DXS2, CMK, IDI1, HMGR2, DXR, MDS, CYP76AH1, 2OGD25, CYP71D373, were less gene promoters or regions collected July than March. Consistently, up-regulated compared March treatment inhibitor 5-azacytidine promoted production. It suggests plays role biosynthesis through changing downstreams genes.

Язык: Английский

---

Geographical Parthenogenesis in Alpine and Arctic Plants

Plants, Год журнала: 2023, Номер 12(4), С. 844 - 844

Опубликована: Фев. 13, 2023

The term “Geographical parthenogenesis” describes the phenomenon that asexual organisms usually occupy larger and more northern distribution areas than their sexual relatives, tend to colonize previously glaciated areas. Several case studies on alpine arctic plants confirm geographical pattern, but causal factors behind are still unclear. Research of last decade in several plant families has shed light question evaluated some classical evolutionary theories. Results confirmed, general, advantages uniparental reproduction enable apomictic re-colonize faster Associated like polyploidy seem contribute mainly spatial separation cytotypes. Ecological suggest a better tolerance apomicts colder climates temperate extremes, whereby epigenetic flexibility phenotypic plasticity play an important role occupying ecological niches under harsh conditions. Genotypic diversity appears be lesser importance for distributional success plants. Classical theories reduced pressure biotic interactions hence advantage asexuals (Red Queen hypothesis) did not gain support from However, it is also enigmatic why outcrossing remains predominant mode floras. Constraints origin apomixis might role. Interestingly, association sexuality with abiotic stresses. Light stress high elevations explain most retain despite other environmental would favor apomixis. Directions future research will given.

Язык: Английский

---