Distribution of metabolites in galled and non-galled foliar tissues of Tibouchina pulchra

Motta, Lucimar Barbosa; Kraus, Jane Elizabeth; Salatino, Antônio; Salatino, Maria Luiza Faria

doi:10.1016/j.bse.2005.02.004

Cited by 67 publications

(47 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The Nod factors interrupt cytokinin-signal transduction pathway, by introducing concurrent changes in auxin-related responses during root-nodule initiation, in high likelihood, through increased levels and action of flavonoids (Mathesius et al 1998). Flavonoids occur at 'lowÁ negligible' levels in insect-induced gall systems (Nyman and Julkunen-Tiitto 2000; Motta et al 2005), although soluble phenolic materials and tannins are usually high. Isolation of castasteroneÁ4 (a brassinosteroid) from insect-induced galls of Castanea crenata (Fabaceae) (Yokota et al 1982) prompts the exploration of brassinosteroids in triggering signaltransduction pathways in galls.…”

Section: Gall Initiation and Developmentmentioning

confidence: 99%

Gall induction by hemipteroid insects

Raman

2012

Journal of Plant Interactions

View full text Add to dashboard Cite

The Thysanoptera and sternorrhynchous Hemiptera induce galls through feeding action, a behavior similar to that in the Cecidomyiidae. Salivary glands of gall-founding female thrips include greater quantities of hydrolyzing enzymes and soluble proteins than those in either males or pupae, which possibly alter the host-tissue metabolism, enabling galls to develop. Piercing-and-sucking mouthparts of the Hemiptera are adapted for an exclusively liquid diet Á either the plant sap from vascular elements or the fluids from living nonvascular cells. Hemipteransalivary chemistry alters the hormonal balance in the host, triggering gall development. Soluble proteins in the saliva of nymphs are critical. Gall-inducing Hemiptera vigorously take oxygen from the 'gall' tissue, which triggers auxin activity. Gall-inducing behaviors in the Thysanoptera and Sternorrhyncha are similar in that gall induction occurs by the feeding action of a single female, and gall-founding females disperse over short distances seeking young host-plant organs. Besides providing a comparative overview of gall induction by hemipteroids, this paper highlights the subtle but noteworthy differences in behaviors among these insects, thus offering pointers to their evolution within the specialist guild of herbivory.

show abstract

Section: Gall Initiation and Developmentmentioning

confidence: 99%

Gall induction by hemipteroid insects

Raman

2012

Journal of Plant Interactions

View full text Add to dashboard Cite

show abstract

“…Glycosylation renders the flavonoids more water soluble and facilitates transport into the vacuole, where they are often stored (for review, see Vogt and Jones, 2000). Myricetin, myricetin methyl ethers, and 3-O-glycosylated myricetin derivatives have been reported in leaf tissues (Braca et al, 2001;Motta et al, 2005;Lee et al, 2006;Oliveira et al, 2007), fruits (Gorbatsova et al, 2007;Lako et al, 2007;Le et al, 2007;Riihinen et al, 2008), flowers (Tabart et al, 2006;Kumar et al, 2008;Liu et al, 2008;Wu et al, 2008), stems and bark (Min et al, 2003), and roots (Ojong et al, 2008).…”

mentioning

confidence: 99%

Polymethylated Myricetin in Trichomes of the Wild Tomato Species Solanum habrochaites and Characterization of Trichome-Specific 3′/5′- and 7/4′-Myricetin O-Methyltransferases

Schmidt

Shi

et al. 2011

Plant Physiology

View full text Add to dashboard Cite

Flavonoids are a class of metabolites found in many plant species. They have been reported to serve several physiological roles, such as in defense against herbivores and pathogens and in protection against harmful ultraviolet radiation. They also serve as precursors of pigment compounds found in flowers, leaves, and seeds. Highly methylated, nonglycosylated derivatives of the flavonoid myricetin flavonoid, have been previously reported from a variety of plants, but O-methyltransferases responsible for their synthesis have not yet been identified. Here, we show that secreting glandular trichomes (designated types 1 and 4) and storage glandular trichomes (type 6) on the leaf surface of wild tomato (Solanum habrochaites accession LA1777) plants contain 3,7,3#-trimethyl myricetin, 3,7,3#,5#-tetramethyl myricetin, and 3,7,3#,4#,5#-pentamethyl myricetin, with gland types 1 and 4 containing severalfold more of these compounds than type 6 glands and with the tetramethylated compound predominating in all three gland types. We have also identified transcripts of two genes expressed in the glandular trichomes and showed that they encode enzymes capable of methylating myricetin at the 3# and 5# and the 7 and 4# positions, respectively. Both genes are preferentially expressed in secreting glandular trichome types 1 and 4 and to a lesser degree in storage trichome type 6, and the levels of the proteins they encode are correspondingly higher in types 1 and 4 glands compared with type 6 glands.

show abstract

“…g -1 ) leaves of C. lanceolata were significantly different (p < 0.05), higher in galled leaves. Motta et al (2005) analyzed the total phenols in galled (15.99 ± 0.15) and non-galled (11.34 ± 0.03) leaves of Tibouchina pulchra and observed similar results, where the gall tissues showed higher total phenol content. Formiga et al (2009) evaluated the relationship between total phenol content and cycle Cecidomyiidae galls on Aspidosperma spruceanum and noted that the phenols were deeply influenced by the induction and development of galls, which stimulated the production of these metabolites during the months analysed.…”

Section: Total Phenols Flavonoids and Tannins In Leaves Of Clusia Lamentioning

confidence: 61%

“…The total flavonoid contents of galled (35.5 ± 0.5 mg QE.g -1 ) and non-galled (54.8 ± 0.7 mg QE.g -1 ) leaves of C. lanceolata were significantly different (p < 0.05), higher in healthy leaves. Similarly, the content of flavonoids in healthy leaves (1.26 ± 0.03) of Tibouchina pulchra was higher than the concentration present in the gall (0.31 ± 0.02) (Motta et al, 2005). The presence of flavonoids was also observed by qualitative analysis of the extracts of galled and nongalled leaves in HPLC-DAD = 350 nm.…”

Section: Total Phenols Flavonoids and Tannins In Leaves Of Clusia Lamentioning

confidence: 73%

Distribution of metabolites in galled and non-galled leaves of Clusia lanceolata and its antioxidant activity

Ferreira

Carvalho

Silva

et al. 2014

Revista Brasileira de Farmacognosia

View full text Add to dashboard Cite

Galls Essential oil Phenols Flavones Antioxidants A B S T R A C T Essential oils of galled and non-galled leaves of Clusia lanceolata Cambess., Clusiaceae, were obtained by hydrodistillation and analyzed by GC and GC/MS. The chemical composition of both oils was similar, with a predominance of sesquiterpene caryophyllenes. The extracts from the leaves were evaluated regarding total phenols, flavonoids and proanthocyanidins. Galled leaves showed higher levels of phenolics and proanthocyanidins, since the content of flavonoids was higher in non-galled leaves. The chromatographic profiles of extracts were obtained by using HPLC/DAD and LC-ESI-MS. Electrospray ionisation (ESI) in positive and negative ion mode was used to identify four flavones C-glycosides in both extracts. The study constitutes a first report on the chemical research of C. lanceolata. The extract from galled leaves had a higher antioxidant activity.

show abstract

Distribution of metabolites in galled and non-galled foliar tissues of Tibouchina pulchra

Cited by 67 publications

References 21 publications

Gall induction by hemipteroid insects

Gall induction by hemipteroid insects

Polymethylated Myricetin in Trichomes of the Wild Tomato Species Solanum habrochaites and Characterization of Trichome-Specific 3′/5′- and 7/4′-Myricetin O-Methyltransferases

Distribution of metabolites in galled and non-galled leaves of Clusia lanceolata and its antioxidant activity

Contact Info

Product

Resources

About