English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Development of arbuscular mycorrhizal in tomato (Lycopersicon esculentum cv Micro-Tom) insensitive to jasmonic acid (jai1-1) and ethylene over producer (epinastic) Arbuscular mycorrhizal (AM) symbioses are formed between mutualistic soil fungi and most land plants, particularly angiosperms. This symbiosis can bring many benefits to the host plant, such as increased absorption of phosphate, an increase in tolerance to abiotic and biotic stress, and resistance to pathogens, resulting in better adaptation to the environment. It’s possible that plant hormones are involved in signaling events between mycorrhizal fungi and host plants during the processes of colonization of roots and development of arbuscules. Recent studies have shown that during the establishment of symbiosis, there is a reprogramming of the expression of a large number of genes, and that these changes in gene expression may be associated with altered levels of hormones in plants. The aim of this study was to evaluate the development of MA in mutants of tomato cv Micro-Tom (MT) insensitive to jasmonic acid (jai1-1), ethylene overproducer (epi) and double mutant epijai1 inoculated with Glomus clarum under low phosphorus concentration in substrate, and the expression of genes related to biosynthesis of jasmonic acid (JA) (and OPR3 AOC) and ethylene (ET) (ACO4 and ACS2). Jai1-1 mutant showed no intraradical colonization and the accumulation of transcripts for both the biosynthesis of JA and ET was less than the control MT suggesting the importance of JA for the development of epi and double mutant symbiosis. The mutant epi and the double mutant showed reduced intraradical colonization when compared to the control MT. The transcript accumulation of the ET (ACO4 and ACS2) and JA (OPR3 and AOC) genes was higher in the mutant epi. The insensitivity to the JA in this double mutant did not prevent the accumulation of transcripts for the biosynthetic pathways of JA and ET, suggesting a synergistic relationship between plant hormones for the establishment of symbiosis.

Desenvolvimento de micorriza arbuscular em tomateiro (Lycopersicon esculentum cv micro-tom) insensível ao ácido jasmônico (jai1-1) e superprodutor de etileno (epinastic)