Scientific foundationsCytokininsFamily of hormones that stimulate active cell division, balanced with auxins to determine the growth pattern.Origin: Yolia LibraryExact route: /biblioteca?ruta=fundamentos/citocininas FULL TOPICCytokinins Name and classification Name and Classification: Cytokinins. Family of plant hormones with a proven stimulating function on active cell division, present in the 4 species of Yolia's catalog. A fundamental concept within modern plant physiology considered by the system. What it is What it is: A hormone family that actively stimulates cell division, working in regulatory balance — and sometimes controlled tension — together with auxins, to jointly determine the growth and differentiation pattern of the cultivated plant. Where and how it was studied Where and how it was studied: identified by observing that certain plant extracts, especially from germinating seeds, stimulated cell division in experimental tissue cultures, an effect clearly distinct from the already-known effect of auxins. Why it matters for cultivation Why it matters for cultivation: The balance between available auxin and cytokinin determines whether a cell becomes root, stem, or remains undifferentiated — that's why modules with active sprouting produce different growth than simply adding more nitrogen. Chemistry — molecular structure Chemistry — molecular structure: molecules derived directly from adenine, a specific nitrogenous base, with different natural variants depending on the exact chemical modification of that base structure. Precisely characterized by modern analytical techniques. Molecular mechanism of action They are produced mainly and actively in the plant's root, and are transported upward within the complete structure, effectively signaling to the aerial part that there is good real root activity actively sustaining the overall growth present. Where it occurs in the plant Where it occurs in the plant: synthesized mainly in active root tips, and also produced during the seed germination process. Consistently present throughout the cultivated plant, without relevant variation among the catalog's species. How it's regulated How it's regulated: Its production actively and measurably increases during germination — which is why modules with real active sprouting, not just simple soaking, contain cytokinins generated during that specific, well-documented biological process. What triggers it What triggers it: active root activity present, and in particular the complete seed germination process underway within the plant's natural cycle. A trigger consistently confirmed in the available specialized scientific literature. Which other processes it interacts with Direct, constant regulatory balance with the present auxins — a relatively high cytokinin ratio genuinely favors stem and leaf formation, while a relatively high auxin ratio specifically favors actual root formation. Relevant differences between catalog species The mechanism is completely universal across species; triacontanol, a related biostimulant compound well documented in real sprouts, acts as a complement to this same main hormonal mechanism considered in the catalog. How it's observed in practice Indirectly but consistently — noticeably more active vegetative growth with specific real-sprout modules, like RN-02 or N-49, compared directly to other nitrogen sources that lack this particular hormonal component. What happens if there's a deficiency What happens if there is a deficiency: a lower rate of active cell division, which translates into slower vegetative growth, even when technically sufficient nutrients are available in the substrate. Confirmed in specialized field and laboratory studies. How Yolia uses it How Yolia uses it: the catalog's sprout modules, such as actively sprouted alfalfa and soy, provide cytokinins generated during germination — that's why actually sprouting the seed, not just soaking it, is a mandatory step in several of the system's modules. Common interpretation errors Using seed that has only been soaked, without real active germination, incorrectly expecting to obtain the same complete hormonal effect that genuine germination produces — the specific active compound is generated precisely during that particular biological process, not before. Evidence and limits of current knowledge The mechanism is consistently well established scientifically; the actual exact concentration achieved genuinely varies depending on the specific concrete germination conditions considered, such as temperature and elapsed time in the process. Related topics and modules Related topics and modules: Auxins, hormone in direct regulatory balance — Gibberellins, third relevant hormone in sprouts — Triacontanol and biostimulants — RN-02 Medium Hormonal Nitrogen — Sprouted legume ferment, direct practical application. Related topicsPhloemSource–sink relationshipFruit developmentAbscissionPlant cellMembrane and cellular transport