Relationship between the flavonoid composition and flower colour variation in Victoria

Plant Biology ◽  
2018 ◽  
Vol 20 (4) ◽  
pp. 674-681 ◽  
Author(s):  
Q. Wu ◽  
P.-C. Li ◽  
H.-J. Zhang ◽  
C.-Y. Feng ◽  
S.-S. Li ◽  
...  
2015 ◽  
Vol 9 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Tania Veiga ◽  
Javier Guitián ◽  
Pablo Guitián ◽  
José Guitián ◽  
Ignacio Munilla ◽  
...  

2008 ◽  
Vol 2 (4) ◽  
pp. 237-246 ◽  
Author(s):  
Emmanuelle Tastard ◽  
Christophe Andalo ◽  
Martin Giurfa ◽  
Monique Burrus ◽  
Christophe Thébaud

2008 ◽  
Vol 88 (1) ◽  
pp. 121-132 ◽  
Author(s):  
Margaret Gruber ◽  
Birgitte Skadhauge ◽  
Min Yu ◽  
Alister Muir ◽  
Kenneth Richards

Lotus species collec ted from a range of geographical locations were evaluated for relationships between plant habit and size, leaf proanthocyanidin (PA) content, flower colour, stem colour, leaf colour, trichome density, and geographic origin. No relationships occurred between leaf PA concentration and morphological trait or collection site. Trichome coverage was moderately correlated with plant size (r = -0.70). Several accessions, e.g., L. angustissimus L. and L. castellanis Boiss. & Reut., consisted of small, trichome-covered plants distinct from the large, glabrous plants typical of the model species L. corniculatus var. japonicus ecotype Gifu B129. These two morphology types were also represented among the tan mutants of Gifu B129. Due to the importance of trichomes and PA in plant defence, PA composition was compared between L. angustissimusand tan1 (both representing the small trichome-covered phenotype) and ecotype Gifu B129 and tan2 (both representing the large, glabrous phenotype). Both the tan1 and tan2 mutants accumulated substantial amounts of leaf PA similar in size to the small oligomers recovered from leaves of L. angustissimus. PA polymers were undetectable in Gifu B129 leaves, while floral PA extracts of this ecotype included a much larger PA polymer. Flavonoid composition in leaves of tan1 and L. angustissimus was complex, and differed from the simple profile in Gifu B129 leaves. Key words: Lotus, proanthocyanidin, flavonoids, trichomes, morphology, plant habit, variability


1939 ◽  
Vol 37 (2) ◽  
pp. 375-388 ◽  
Author(s):  
G. H. Beale ◽  
G. M. Robinson ◽  
Robert Robinson ◽  
R. Scott-Moncrieff

1940 ◽  
Vol 15 (1) ◽  
pp. 35-57 ◽  
Author(s):  
W. J. C. LAWRENCE ◽  
J. R. PRICE

2021 ◽  
Author(s):  
Eduardo Narbona ◽  
José C. del Valle ◽  
Justen B. Whittall

Flowering plants are characterized by the production of striking flower colours and these colours are primarily caused by the accumulation of pigments in cells of the floral organs. The extraordinary array of colours displayed in flowers relies on four main pigment groups: chlorophylls, carotenoids, flavonoids and betalains. With thousands of different compounds, flavonoids are the most diverse and widespread pigment group. They include coloured anthocyanins, aurones and chalcones, as well as many flavonoid compounds such as flavones and flavonols that are invisible to humans, but visible to most pollinators since they absorb ultraviolet light (UV). Flowers may exhibit homogenous colours produced by only one type of pigment or extremely complex colour patterns caused by the accumulation of several types of pigments in the same or in different floral organs. Here, we review the ecological biochemistry of pigments affecting flower colour. We also present data of flower colour variation and provide future research directions guided by the physiological functions of floral pigments.


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