auxin
Plant elongation hormone
Auxin is a plant hormone that regulates growth, causing cells to elongate on one side of a stem or root.
This asymmetric growth is how plants bend toward light or grow roots downward.
Auxins control processes from fruit development to leaf drop.
Synthetic auxins are used as herbicides and rooting compounds: The cutting was dipped in auxin to encourage root formation.
Plant growth hormone
- ethyleneSimplest alkene, C₂H₄
- salicylic acidWillow-derived beta hydroxy compound
- biosynthesisLiving production of molecules
- metabolismCellular nutrient conversion
conjugation · catabolism · tryptophan · synthase · oxidase · transporter · receptor · bioactive
Growth response to illumination
- gravitropismPlant gravity response
- differential growthUnequal rates of enlargement
- bendingCurving from straight
- curvatureDeviation from flatness
Developmental shape emergence
- differentiationRecognizing meaningful differences
- organogenesisEmbryonic tissue becoming structures
- embryogenesisFormation of early life
- meristemPlant growth tissue
callus · tissue culture · regeneration · polarity · primordium · plasticity
Seasonal foliage drop
- senescenceGradual functional decline with age
- fruit dropHard candy, orchard flavors
- autumnPost-summer cooling period
- deciduousSheds foliage seasonally
indoleacetic acid
Plant growth hormone
- ethyleneSimplest alkene, C₂H₄
- salicylic acidWillow-derived beta hydroxy compound
- biosynthesisLiving production of molecules
metabolism · conjugation · catabolism · tryptophan · synthase · oxidase · transporter · receptor · bioactive · homeostasis
phototropism
Growth response to illumination
- gravitropismPlant gravity response
- differential growthUnequal rates of enlargement
- bendingCurving from straight
morphogenesis
Developmental shape emergence
- differentiationRecognizing meaningful differences
- organogenesisEmbryonic tissue becoming structures
- embryogenesisFormation of early life
meristem · callus · tissue culture · regeneration · polarity · primordium · plasticity
leaf fall
Seasonal foliage drop
- senescenceGradual functional decline with age
- fruit dropHard candy, orchard flavors
- autumnPost-summer cooling period
- indolesindole, tryptamine, tryptophan, serotonin, melatonin
- growthgrowth, grow, growing, growth rate, increase
- rootstaproot, root system, root tip, fibrous root, primary root
- plant biologyphotosynthesis, chloroplast, pollination, stamen, pistil
- growth additivesfertilizer, plant food, growth hormone, nitrogen, phosphorus
- plant physiologyphotosynthesis, transpiration, germination, stomata, respiration
- auxiliary powerSecondary energy source
- auxiliary storagePersistent data retention hardware
- auxiliary verbVerb modifying main verb
- auxiliary languageShared second tongue for communication
- ladies' auxiliaryFemale members' support organization
- chiral auxiliaryDetachable asymmetric synthesis guide