Arutelu:Taimede kaitsemehhanismid
Tere! Siinkohal peaks ilmselt Vikipeedia Tuumiku appi kutsuma... siin on ilmselt palju võimalusi...
- kas taimede kaitsemehhanismidena on mõeldud üksnes ainelist poolt - osaleda võivad keemilised ühendid- sekundaarsed mediaatorained...
- mina mõtleks siinkohal taimeimmuunsusest ja taimede immuunvastustest
- Jonathan D. G. Jones & Jeffery L. Dangl, The plant immune system, Nature 444, 323-329 (16 November 2006), doi:10.1038/nature05286
- Phytoalexin, salitsüülhape jt...
- Mariina 25. oktoober 2014, kell 17:45 (EEST) alias Простота
Puudu on mehhaanilised kaitsemehhanismid (astlad), kõrverakud... Kaitse vee liigse aurustumise vastu ehk õhulõhede sulgumine on ka vaid poolikult ära märgitud. Melilac (arutelu) 25. oktoober 2014, kell 19:22 (EEST)
- Tere!
- Minu arust püütakse artiklis rääkida siiski taimede resistensusest - taimeimmuunsusest ka taime immuunsüsteemist: inimestel hakatakse ju ka kaitsebarjääre kirjeldama nahast, mis on üsna suur lümfoid (kaitse)organ - naha immuunsüsteem (skin immune system) - siis sarnaselt võiks kirjeldada ka taimede anatoomilisi kaitsebarjääre : mehaaniline ja keemiline jne
- Plant Physiology-Chapter 13 Secondary Metabolites and Plant Defense
- Comprehensive and Molecular Phytopathology
- Hypersensitivity: Hypersensitivity is a natural defense for plants in response to a variety of pathogens such as viruses, bacteria, fungi, and nematodes and is characterized by rapid cell death accompanied by an accumulation of toxic compounds within the dead cell. This chapter describes two completely different pictures of cell death: apoptosis and necrosis...
- Biochemical resistance factors : The nonspecific resistance factors in the horizontal pathosystem are divided into axeny and true resistance. Axeny is the resistance that occurs before a pathogen–plant cell contact, and true resistance is manifested after the pathogen contact with the cellular protoplast. The chapter explains how anatomical–morphological resistance factors are affected by plant habitus, downy leaves, structure and arrangement of stomata, and anatomic features of internal plant tissues. It also explains the regulation of ontogenesis and damage reparation in pathogens. Many plant parasites can penetrate into tissues only through wounds, and the rate of suberization of wound surfaces correlates with plant resistance. It also explains the nutrient value of infected organs and tissues. The chemical factors available to the plants for their own defense against diseases are diverse in chemical composition, conditions of production, and mechanisms of toxicity. This chapter discusses the chemical classification of phytoanticipins, which includes phenols, terpenoids, proteins, and amino acids. Protein inhibitors of viruses are a special group of vegetal antibiotic substances...jne
- Mariina 26. oktoober 2014, kell 09:37 (EET) alias Простота