Heterotrimeric G-proteins in green algae

Figures & data

Figure 1. Schematic overview of the phylogeny of green algae and evolutionary innovations (modified from).^16,20 Potential genes encoding Gα, Gβ and Gγ subunits of the heterotrimeric G protein complex based on EST data analysis are labeled with orange, blue or green and selected morphological or molecular characters are shown. G-protein genes can be found in the monophyletic branch of Streptophyta such as in several charophytes (Klebsormidiophyceae, Coleochaetophyceae and Charophyceae) and embryophytes, but not in chlorophytes.

Table 1. Quantification of acidic phytohormones in Chara braunii using LC-MS/MS

Phytohormone	Amount [ng analyte /g dry weight tissue]	S.D.
SA	2440.9	309.3
ABA	3.2	0.4
JA	ND	–
JA-ILE	ND	–
OPDA	ND	–
IAA	51.4	5.9
IAA-ASP	ND	–

Amounts of salicylic acid (SA), abscisic acid (ABA), jasmonic acid (JA), isoleucine conjugated JA (JA-ILE), 12-oxo phytodienoic acid (OPDA) a JA precursor, indole-3-acteic acid (IAA), aspartate conjugated IAA (IAA-ASP) and corresponding standard deviation (S.D.) of three technical replicates are indicated (ND = not detectable or outside the limits of detection).

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