Auxin

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Native auxins
Skeletal structur diagram
Indole-3-acetic acid (IAA) is the maist abundant an the basic auxin natively occurrin an functionin in plants. It generates the majority o auxin effects in intact plants, an is the maist potent native auxin.

Thare are fower mair endogenously synthesized auxins in plants.[1][2]
Aw auxins are compoonds wi aromatic ring an a carboxylic acid group:[2][3]

Auxins are a cless o plant hormones (or plant-growthe regulators) wi some morphogen-lik chairactereestics. Auxins play a cardinal role in coordination o mony growthe an behavioural processes in plant life cycles an are essential for plant bouk development.

References[eedit | eedit soorce]

  1. Simon, S; Petrášek, P (2011). "Why plants need more than one type of auxin". Plant Science. 180 (3): 454–460. doi:10.1016/j.plantsci.2010.12.007. PMID 21421392. 
  2. 2.0 2.1 Ludwig-Müller J (March 2011). "Auxin conjugates: their role for plant development and in the evolution of land plants". J. Exp. Bot. 62 (6): 1757–1773. doi:10.1093/jxb/erq412. PMID 21307383. Besides IAA there are several other molecules with auxin activity such as indole-3-butyric acid (IBA) (Fig. 1), 4-Cl-IAA, and indole-3-propionic acid (IPA). ... The indole moiety (e.g. IAA, IBA, IPA, 4-Cl-IAA) as well as the conjugate partner can vary, so that the plant can produce many different combinations of conjugates (Bajguz and Piotrowska, 2009). Also, other auxin-type molecules such as phenylacetic acid (PAA; Ludwig-Müller and Cohen, 2002) can be conjugated (Jentschel et al., 2007) 
  3. Taiz, L.; Zeiger, E. (1998). Plant Physiology (2nd ed.). Massachusetts: Sinauer Associates.