Comparative anatomy of resin ducts of the Pinaceae

Wu, Hong; Hu, Zhenghao

doi:10.1007/s004680050069

Cited by 121 publications

(90 citation statements)

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“…Oleoresin, a large-scale renewable resource, is favorably positioned as competition to chemical petroleum products as a viable alternative for sustainable development and environment protection in the current competitive global landscape (Lieutier et al, 2004). This characteristic has prompted immense scientific research on the resin generating mechanism (Wu and Hu, 1997), resistance function (Trapp and Croteau, 2001;Wainhouse et al, 2009), tapping techniques (Cunningham, 2012), and influence factors on yield improvement (Rodrigues et al, 2008;Rodríguez-García et al, 2015). Certain aspects of the oleoresin components have been also studied.…”

Section: Introductionmentioning

confidence: 99%

Genetic and correlation analysis of oleoresin chemical components in slash pine

Zhang¹,

Jiang²,

Luan³

2016

Genet. Mol. Res.

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ABSTRACT. This is the first comprehensive study of the genetic analysis of the majority of oleoresin components of slash pine (Pinus elliottii). Pine oleoresin, the resin secreted from the pine tree, is a raw material widely used in industrial products. The objective of this study was to explore the genetic variation and correlation between the major oleoresin components of 50 open pollinated families of slash pine. The individual narrow-sense heritability of the 23 oleoresin components and genetic correlations between them were estimated using the residual maximum likelihood in the flexible mixed modeling program, ASReml-R. A high heritability of 0.424 was observed for β-pinene. Moderate levels of heritability were estimated for β-phellandrene, methyl abietate, estragole, 15-hydroxy-dehydroabietic acid, and isopimaric acid methyl ester at 0.303, 0.294, 0.27, 0.258, and 0.2, respectively. The heritabilities for pimaric acid methyl ester, abieta-8, 13-diene-18-oic acid methyl ester, sandaracopimaric acid, methyl ester, and camphene were relatively low and ranged from 0.11 to 0.17. Many negative genetic correlations were observed as unfavorable while the corresponding phenotypic correlations presented no significant relationships or positive phenotypic correlations. However, the heritabilities and genetic correlations showed that single or multiple component selections and improvement, directly or indirectly, were effective. We postulate that genetic parameters estimated in this study will work as a reference in breeding programs of oleoresin components, especially in slash pine.

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Section: Introductionmentioning

confidence: 99%

Genetic and correlation analysis of oleoresin chemical components in slash pine

Zhang¹,

Jiang²,

Luan³

2016

Genet. Mol. Res.

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“…Most literature deals with the development of diverse secretory reservoirs of single species (e.g., Bennici and Tani, 2004) or concentrates on conifers and legumes, as their gumresins or resins are of commercial importance (Hong Wu and Zheng-hai Hu, 1997;Rodrigues and Machado, 2009;Bollschweiler et al, 2008 and others). Previous literature on the Cardueae deals mainly with the occurrence of secretory ducts or cavities on aerial organs, especially those of leaves and shoots, and the transition between root and shoot (Col, 1903(Col, , 1904.…”

Section: Introductionmentioning

confidence: 99%

Secretory Structures of Subterranean Organs of Some Species of the Cardueae, and Their Diagnostic Value

Fritz¹,

Saukel²

2011

Acta Biologica Cracoviensia Series Botanica

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Secretory ducts and cavities of roots and rhizomes are typical features of the Cardueae tribe in the Asteraceae family. We used light microscopy to analyze the anatomy of the subterranean organs of 21 species of 13 genera of the Cardueae, with particular attention to the secretory system, interpreted in taxonomic terms. The anatomy of secretory ducts varied greatly. A new measurement quotient, C1 [length of epithelial cells (longitudinal section)] and C2 [length of adjacent cells (longitudinal section)] was established. Different types of ducts are described based on type of development and the size ratios among epithelial cells. Detailed anatomical descriptions of the ducts are given, together with their occurrence in particular taxa. The simultaneous presence of various secretory ducts within a single species and their spatial position relative to other prominent anatomical features provide valuable characters for discriminating the studied Cardueae species. These analyses are of particular interest for identification of herbal drugs as, besides chemical analytical techniques such as chromatographic fingerprinting, light microscopy is a common method for purity controls and thus required in official pharmacopeias.K Ke ey y w wo or rd ds s: : Root anatomy, microscopy, Asteraceae, Cardueae, secretory ducts.

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“…Some Pinaceae species (e.g. Pinus, Picea) constitutively produce xylem resin ducts (Wu and Hu, 1997) but can be induced to form additional xylem traumatic resin ducts (TD) following herbivory, pathogen invasion, or wounding (Reid et al, 1967;Alfaro, 1995;Franceschi et al, 1998Franceschi et al, , 2000Tomlin et al, 1998;Nagy et al, 2000;Hudgins et al, 2003a;McKay et al, 2003), while others (Abies, Cedrus) only develop xylem resin ducts in response to injury (Bannan, 1936;Fahn et al, 1979). The resin formed from inducible TDs may be more toxic or fungistatic because of the addition of phenolics and compositional changes of terpene content (Nagy et al, 2000;Fäldt et al, 2003;Krokene et al, 2003).…”

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Methyl Jasmonate-Induced Ethylene Production Is Responsible for Conifer Phloem Defense Responses and Reprogramming of Stem Cambial Zone for Traumatic Resin Duct Formation

2004

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Conifer stem pest resistance includes constitutive defenses that discourage invasion and inducible defenses, including phenolic and terpenoid resin synthesis. Recently, methyl jasmonate (MJ) was shown to induce conifer resin and phenolic defenses; however, it is not known if MJ is the direct effector or if there is a downstream signal. Exogenous applications of MJ, methyl salicylate, and ethylene were used to assess inducible defense signaling mechanisms in conifer stems. MJ and ethylene but not methyl salicylate caused enhanced phenolic synthesis in polyphenolic parenchyma cells, early sclereid lignification, and reprogramming of the cambial zone to form traumatic resin ducts in Pseudotsuga menziesii and Sequoiadendron giganteum. Similar responses in internodes above and below treated internodes indicate transport of a signal giving a systemic response. Studies focusing on P. menziesii showed MJ induced ethylene production earlier and 77-fold higher than wounding. Ethylene production was also induced in internodes above the MJ-treated internode. Pretreatment of P. menziesii stems with the ethylene response inhibitor 1-methylcyclopropene inhibited MJ and wound responses. Wounding increased 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase protein, but MJ treatment produced a higher and more rapid ACC oxidase increase. ACC oxidase was most abundant in ray parenchyma cells, followed by cambial zone cells and resin duct epithelia. The data show these MJ-induced defense responses are mediated by ethylene. The cambial zone xylem mother cells are reprogrammed to differentiate into resin-secreting epithelial cells by an MJ-induced ethylene burst, whereas polyphenolic parenchyma cells are activated to increase polyphenol production. The results also indicate a central role of ray parenchyma in ethylene-induced defense.Resistance in conifer stems to invasion by bark beetles, wood borers, and fungal pathogens includes constitutive defenses that deter initial invasion and inducible responses that may include mass oleoresin secretion and increased phenolic synthesis surrounding the wound zone following invasion. The bark (periderm and secondary phloem) is the first line of defense against stem-invading organisms and in many conifers contains basal levels of compartmentalized phenolic and terpenoid compounds. However, little is known about the activity of cells in the secondary phloem with respect to defense response mechanisms.Polyphenolic parenchyma (PP) cells are a common component of the secondary phloem of all conifers and are active in the constitutive synthesis, storage, and modification of various phenolic compounds (Franceschi et al., 1998;Krekling et al., 2000). Following abiotic or biotic damage, PP cells give rise to the wound periderm and are activated to accumulate and release phenolics around the wound site, but these cells can also be induced to accumulate phenolics 10 to 30 cm away from damaged tissue (Franceschi et al., 1998Hudgins et al., 2003a;Krekling et al., 2004).A number of studies have revealed qua...

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Comparative anatomy of resin ducts of the Pinaceae

Cited by 121 publications

References 4 publications

Genetic and correlation analysis of oleoresin chemical components in slash pine

Genetic and correlation analysis of oleoresin chemical components in slash pine

Secretory Structures of Subterranean Organs of Some Species of the Cardueae, and Their Diagnostic Value

Methyl Jasmonate-Induced Ethylene Production Is Responsible for Conifer Phloem Defense Responses and Reprogramming of Stem Cambial Zone for Traumatic Resin Duct Formation

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