Articles tagged with Plant Immunity
A study reveals that the Andes did not stop the spread of Phytophthora palmivora, a cacao killer, as it travels through Colombia's three main regions. The pathogen's genetic structure and virulence show no correlation, highlighting the need for alternative screening methods.
NTU Singapore scientists have developed a method to strengthen plant immunity by grouping immune receptors together, allowing plants to detect disease-causing microbes more effectively. The approach shows promise for potential crop applications in the future, including disease-resistant vegetable seeds and crops.
Researchers have discovered a mechanism that could help develop disease-resistant plant varieties with high yield potential. Steroid hormones regulate a molecular switch controlling the immune response, allowing plants to prioritize growth over defense against pathogens.
A team developed a platform for on-demand design of synthetic plant immune receptors (SPIRs) that recognize proteins from diverse plant pathogens. SPIRs were designed using AI-assisted tools and optimized using a high-throughput platform, demonstrating effective resistance to certain viruses and bacteria.
A recent study found two cocoa cultivars with superior performance in resisting the witches' broom fungus, which decimated crops in southern Brazil. The research suggests that combining genetic improvement and nutritional management is the most sustainable strategy for cocoa production in the Amazon region.
Researchers tracing the journey of Phytophthora infestans, a plant destroyer behind Ireland's Irish Potato Famine, explore its taxonomy and identification from early microscopy to genomic technologies. Advances in science strengthen efforts to monitor and manage destructive plant diseases.
Researchers discovered that high humidity induces the production of CYP707A3, breaking down ABA and promoting stomata opening to release water. Plants lacking this enzyme are more vulnerable to water-soaking. The study reveals a molecular defense mechanism against water accumulation in plants.
A recent study published in Frontiers in Plant Science found that beneficial nematodes, including predatory nematodes, play a crucial role in regulating pest populations in tropical soils. The research shows that these natural allies can suppress harmful plant-parasitic nematodes, leading to improved crop yields and reduced losses.
Researchers at FABI define a conserved subset of Phytophthora RxLR effectors with short linear motifs embedded within folded WY domain cores. This arrangement preserves domain integrity while enabling potential interactions with host immune components, reframing pathogen strategies and challenging SLiM dogma.
Researchers at Colorado State University have found a way to boost plant growth while maintaining its immune system through hormone treatment, showing promise for increasing food production. The approach involves genetically manipulating phytohormone interactions to restore cell division and increase disease resistance.
Researchers have discovered a genetic region controlling resistance to Fusarium wilt Sub Tropical Race 4 (STR4) in a wild banana subspecies called Calcutta 4. This finding holds promise for developing sustainable and disease-resistant commercial banana varieties.
Plants deploy a faster communication system, using jasmonate-dependent immune signals to initiate systemic immunity within hours of infection. This discovery opens new possibilities for engineering crops that respond more quickly to infection, limiting disease spread and yield loss.
Researchers have developed a spray-on polymer coating that can be sprayed directly onto plant leaves to protect against harmful bacterial infections and survive drought. The coating works by disrupting bacterial cell membranes, reducing water loss and inducing molecular-level stress response mechanisms.
Research reveals that postharvest apples' immune system decline correlates with spoilage microbial growth, impacting fruit health. Artificially boosting the immune response with a peptide delays decay.
A study found that fungal oxalic acid (OA) regulates the extracellular domain (ECD) of CERK1 through site-specific deamidation, impairing chitin-triggered plant immunity. This mechanism enables fungal pathogens to suppress host defenses.
Researchers have discovered that Phytophthora infestans can quickly acquire and lose resistance to mefenoxam, a common fungicide used to manage the disease. The pathogen uses a defense mechanism known as pleiotropic drug resistance, which activates cellular pumps to eject the fungicide.
Researchers at RIKEN Center for Sustainable Resource Science identified ancient protein SCORE to help plants defend against various pathogens. By engineering synthetic SCORE variants, plants can be made resistant to multiple pathogen types.
Researchers discovered that plants rapidly activate a coordinated immune response during drought recovery, prioritizing immunity over growth. This finding highlights the importance of studying the post-drought period and points to new strategies for engineering crops that can rebound more effectively after environmental stress.
Researchers discovered that erucamide inhibits Type III Secretion injectisome assembly in Gram-negative bacteria, enhancing plant immunity and reducing disease susceptibility. Exogenous application of erucamide protects crops from bacterial diseases, offering a potential biopesticide for sustainable agriculture.
Researchers have identified a key protein responsible for nematode infection in soybeans, paving the way for the development of more resistant crops. By engineering 'decoy' proteins that trick nematodes into cleaving themselves, scientists aim to reduce reliance on chemical pesticides and lower agriculture's environmental impact.
The Compendium of Rose Diseases and Pests, Third Edition, is a comprehensive guide to diagnosing diseases, identifying pests, and expanding expertise in rose health management. Edited by industry experts, the book features over 50 contributing authors and provides practical guidance for students, researchers, educators, and professionals.
Researchers at Salk Institute discovered plant cells enter an immune state to fight pathogens, using Primary IMmunE Responder (PRIMER) cells as hubs for the immune response. These cells are surrounded by bystander cells that enable long-distance cell-to-cell communication.
Researchers at Princeton University discovered that certain bacteria can reduce a plant's immune activity, allowing its roots to grow longer. The study identified an enzyme produced by one of these bacteria as the key factor in this process, which could have implications for understanding microbiome interactions with host immune systems.
Researchers at Shinshu University have discovered a key role for the HSR201 protein in salicylic acid production, a vital hormone for plant defense. The study found that HSR201 localizes to peroxisomes and uses a unique targeting signal to produce salicylic acid, which is essential for plant immunity.
Researchers have identified 31 effector genes from the fungus Ceratocystis fimbriata, which causes devastating black rot in sweetpotatoes. This breakthrough provides a new approach to developing disease-resistant crops using effector-assisted breeding.
Researchers at Boyce Thompson Institute discover helper NLRs Nrc2 and Nrc3 play a vital role in triggering the plant's immune response, activating MAPK signaling to induce immunity in tomatoes. The study highlights the importance of these proteins in ensuring crop resilience against pathogens.
A new study reveals that chloroplasts are essential for plant immunity, with stromules forming around the nucleus to transport pro-defense signals. Researchers have identified a key protein involved in stromule biogenesis during immunity, opening up new avenues for understanding and engineering resistance to pathogens.
A new study suggests that one branch of plant immunity evolved early during terrestrial evolution, enabling plants to establish themselves on dry land. The research found that pattern-triggered immunity (PTI) is conserved in non-vascular plants, such as liverwort Marchantia polymorpha.
Researchers have identified a novel gene WTS that confers broad-spectrum resistance to clubroot disease in Brassica crops. The WTS protein complex functions as an endoplasmic reticulum-localized calcium release channel, increasing cytosolic calcium ions and activating plant defenses.
Researchers identified four fungal proteins responsible for suppressing host plant immunity in infectious diseases, leading to distinct host specificity in over 70% of plant diseases. Understanding the mechanism of this specificity may lead to new crop protection technologies.
Researchers have discovered the critical role of linker histone protein H1 in plant immune responses to bacterial and fungal infections. The study found that mutant plants with knocked-out H1 isoforms exhibited higher defense gene expression and resistance to infection, but lacked priming ability.
Researchers at KAUST have discovered a key protein that acts as a master switch for plant immunity, suggesting a simpler way to develop more resilient crops. The protein, OXI1, triggers the production of immune-promoting molecules, but its overactivity can harm plants.
Researchers developed a small peptide that can directly kill bacteria and trigger plant defense tactics to prevent diseases like almond leaf scorch. The treatment significantly reduces pathogen population and disease symptoms, making it a promising approach for sustainable crop protection.
A recent study by Zhenzhen Zhao and colleagues found that Arabidopsis plants lacking Acyl Carrier Protein 1 (ACP1) are more resistant to bacterial pathogen Pseudomonas syringae. ACP1 is essential for maintaining hormone homeostasis, which affects plant stress responses.
Scientists discovered a novel biochemical mechanism in which plant immune receptors defend plants against invading microorganisms. TIR domains of these receptors break down NAD+ and process RNA/DNA molecules, leading to the production of cyclic nucleotides that activate cell death responses.
Tomato plant varieties resistant to bacterial wilt have the ability to restrict bacterial movement in the plant. Researchers discovered that these plants synthesize reinforcement coatings containing ligno-suberin and related phenolic compounds, providing a physico-chemical barrier against pathogen colonization.
Researchers have identified a critical enzyme in plants' rapid immune response against microbes, revealing its activation mechanism through the BIK1 protein. This discovery lays the groundwork for future research on plant immunity and disease resistance.