Category: Uncategorized

JASMONATE SIGNALS IN ARABIDOPSIS. "Mechanical tissue damage inflicted on rosette leave results in large (~10 fold) and rapid (within 5 min) increases in JA and JA-IIe levels in undamaged leaves of the rosette." https://lnkd.in/eKj_2Vj View in LinkedIn

ALTERNATIVE ANATOMY. In plants, damage signals include jasmonate, "peptide or cell wall-derived oligosaccharide fragments as well as wound-induced hydraulic and electrical systems," all without a nervous system. Quite remarkable. https://lnkd.in/eKj_2Vj View in LinkedIn

JASMONATE SIGNALS. The plant hormone jasminate (JA): "recent studies provide evidence that JA mediates systemic wound responses through distinct...pathways. In both pathways, bio active JAs are recognized by an F-box protein based receptor system that couples hormone binding to ubiquitin-dependent degradation of transcriptional repressor genes." https://lnkd.in/e598pEz View in LinkedIn

RECENT JASMONATE BREAKTHROUGH. "In 2007, however, there was a breakthrough in analysis of JA signalling with the discovery of the so-called JAZ proteins (JAZMONATE ZIM DOMAIN proteins) as negative regulators in JA-induced gene expression. With the JAZ proteins, however, the first mechanistic explanations were possible on JA perception." https://lnkd.in/edPEBi9 View in LinkedIn

PLANT WOUND VOLATILES. "In tomato the volatile chemical methyl-jasmonate (the compound responsible for the smell of jasmine) is produced in response to mechanical wounding or insect feeding. Methyl-jasmonate is important in defence signalling and in stimulating the activity of genes that produce various protective chemicals." https://lnkd.in/e7UQ_sh View in LinkedIn

PLANT HORMONE CROSSTALK. The two key plant hormones are constructed to separately go after the two main classes of plant predators, the biotrophic pathogens (salicylic acid) and herbivorous insects and neurotrophic pathogens (jasmonate). A second layer of hormones works synergistically with each of them. https://lnkd.in/eRDyXB8 View in LinkedIn

FRAGMENT IN NATURE continues this weekend with the ability of plants to detect danger in their immediate environment, take chemical evasive action quickly, and communicate this information to other plants near to them. The ability to be aware of predators, both large and small, is critical for the survival of plants, which are fixed in place for their lifetimes. They expend valuable energy on this key function. View in LinkedIn

PLANT HORMONE CROSSTALK regulates genetic fine-tuning of plant defenses, which is highly regulated and biologically efficient. https://lnkd.in/eRDyXB8 View in LinkedIn

ELECTROMAGNETIC RADIATION. "In this review we have stressed the novelty of EM-MMs and shown the great flexibility that we now have to design materials with the power to control EM radiation. The ‘knobs’ available to control the two components of EM radiation individually form the basis for such versatility and provide significant advantages over, for example, photonic band gap media." https://lnkd.in/ePVzVDS View in LinkedIn

JASMONIC ACID SYNTHESIS. "JAs therefore appear to be synthesized locally in response to stress cues and developmental cues, and the products of this pathway provide a feedback loop for amplification of the signal." https://lnkd.in/efDsWiV View in LinkedIn