Articles tagged with Plant Defenses
A team of biologists from the University of Amsterdam found that water pores in leaves are part of a plant's defence system against pathogenic micro-organisms. The discovery provides insight into how plants defend themselves against bacterial diseases, and may help make agricultural crops more resilient.
Researchers discovered that cabbage white butterfly caterpillars use two complementary enzymes for detoxification, allowing them to adapt to various cruciferous plants. The NSP and MA enzymes differ in their capacity to process different glucosinolates, enabling the caterpillars to fine-tune their detoxification mechanisms.
Researchers at Saitama University reveal how and why the sensitive plant Mimosa pudica moves its leaves rapidly through calcium-mediated signaling molecules. The study found that bursts of fluorescence travel rapidly throughout the leaves, triggering leaf movements.
Researchers at Ben-Gurion University have discovered two defense methods in wild emmer wheat that can protect cultivated wheat from insects. The wheat produces a poison called benzoxazinoid and has a coating of 'hairs' that prevent insects from burrowing, allowing for improved pest resistance
Researchers discovered that plant carnivory evolved from calcium molecules' dynamic movement within cells in response to touch from live prey. This finding broadens our understanding of how plants interact with their environments and may lead to the development of crops that can survive in challenging conditions.
Researchers found that tobacco hornworms can convert two plant defense substances, chlorogenic acid and HGL-DTGs, into less effective forms after ingestion. Plants adapt to their environment by selectively producing essential compounds and suppressing others, potentially avoiding mutual detoxification.
A team of researchers discovered that a single gene, AOP2, plays a critical role in maintaining species diversity in an ecosystem. The study found that mutations at this gene can dramatically alter the structure and function of an ecosystem.
Researchers discovered that plant volatile signals can warn neighboring plants of herbivore attacks, activating defense genes and increasing resistance. The team found epigenetic mechanisms, including histone acetylation, play a key role in this process.
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.
A new study by Washington State University scientists reveals that viral proteins interact with each other to disable plant defenses, allowing viruses to hijack their hosts. When some of these proteins are disabled, the virus cannot move from cell to cell, highlighting a promising approach to prevent crop losses.
Scientists discovered that fungal endophytes convert chitin to chitosan, a natural plant defense activator, to evade host defense. This conversion enables the fungus to live in symbiotic association with grasses, protecting them from biotic and abiotic stresses.
The study reveals distinct responses of Arabidopsis thaliana to two generalist caterpillar species, the cabbage looper and beet armyworm. Researchers found that plant defense mechanisms differ in response to these caterpillars, suggesting potential strategies for coping with herbivory.
Researchers at Penn State found that plants can induce 'leaky gut syndrome' in insects by disrupting their protective gut barriers. This can lead to septicemia or an immune response that weakens the insect, providing a new strategy for plant defenses.
Researchers developed a new technique to measure plant biochemical responses using small tissue samples, reducing the need for large sample sizes and increasing experimental efficiency. This approach allows for more nuanced and high-resolution understanding of plant defense mechanisms.
Insect-killing nematodes produce distinctive chemical cues that both plants and insects respond to, enhancing plant defenses and deterring Colorado potato beetle eggs. This discovery offers growers additional benefits from using EPNs for biological control of insect pests.
Researchers found that viruses work together to break down plant defenses, causing more severe disease. This phenomenon has important implications for controlling these viruses.
Researchers found that sexually produced evening primrose plants withstand caterpillar attacks better than asexual relatives. The study suggests that plant sex influences the evolution of defenses against herbivores.