Seasonal cambial growth and development of loblolly pine: Xylem formation, inner bark chemistry, resin ducts, and resin flow

Blanche, C. A.; Lorio, Peter L.; Sommers, Robert A.; Hodges, John D.; Nebeker, T. Evan

doi:10.1016/0378-1127(92)90167-8

Cited by 83 publications

(57 citation statements)

References 19 publications

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“…In Pinus taeda, there is some evidence that pre-formed canals may not be filled to capacity during normal growing conditions. Following physical wounding to the bole, canals are rapidly filled with induced resin from surrounding epithelial cells, with production most vigorous in the fastest-growing trees with the largest crowns (Blanche et al 1992;Lombardero et al 2000). A similar mechanism may occur in P. resinosa as well, albeit on a slower time scale (Lombardero et al 2006).…”

Section: Resin Flow Monitoringmentioning

confidence: 95%

Influence of Fire and Southern Pine Beetle on Pine-Dominated Forests in The Linville Gorge Wilderness, North Carolina

Knebel¹,

Wentworth²

2007

Castanea

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Section: Resin Flow Monitoringmentioning

confidence: 95%

Influence of Fire and Southern Pine Beetle on Pine-Dominated Forests in The Linville Gorge Wilderness, North Carolina

Knebel¹,

Wentworth²

2007

Castanea

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“…Resin ducts may be important surrogate measures of tree investment in defense because they are responsible for the production and storage of oleoresin (Hodges et al 1985, Franceshi et al 2005. While results are not consistent, some studies have shown a relationship between xylem-based resin ducts and oleoresin flow in conifers of varying sizes (Blanche et al 1992;Lombardero et al 2000).…”

Section: Introductionmentioning

confidence: 95%

Importance of resin ducts in reducing ponderosa pine mortality from bark beetle attack

2010

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The relative importance of growth and defense to tree mortality during drought and bark beetle attacks is poorly understood. We addressed this issue by comparing growth and defense characteristics between 25 pairs of ponderosa pine (Pinus ponderosa) trees that survived and trees that died from drought-associated bark beetle attacks in forests of northern Arizona, USA. The three major findings of our research were: (1) xylem resin ducts in live trees were >10% larger (diameter), >25% denser (no. of resin ducts mm(-2)), and composed >50% more area per unit ring growth than dead trees; (2) measures of defense, such as resin duct production (no. of resin ducts year(-1)) and the proportion of xylem ring area to resin ducts, not growth, were the best model parameters of ponderosa pine mortality; and (3) most correlations between annual variation in growth and resin duct characteristics were positive suggesting that conditions conducive to growth also increase resin duct production. Our results suggest that trees that survive drought and subsequent bark beetle attacks invest more carbon in resin defense than trees that die, and that carbon allocation to resin ducts is a more important determinant of tree mortality than allocation to radial growth.

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“…Genetic and environmental factors are both known to influence the quantity of constitutive resin produced by loblolly pine trees, Pinus taeda L. (Lorio 1986;Nebeker et al 1988Nebeker et al , 1992Lorio et al 1990;Blanche et al 1992;Wilkens et al 1998;Lombardero et al 2000). Most of the attention devoted to identification of variables that have a bearing on resin production, however, has concentrated on environmental attributes and cultural practices aimed at stimulating tree growth.…”

Section: Introductionmentioning

confidence: 99%

Estimates of genetic parameters for oleoresin and growth traits in juvenile loblolly pine

Roberds¹,

Strom²,

Hain³

et al. 2003

Can. J. For. Res.

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Abstract:In southern pines of the United States, resistance to attack by southern pine beetle, Dendroctonus frontalis Zimmermann, is believed to principally involve flow of oleoresin to beetle attack sites. Both environmental and genetic factors are known to affect the quantity of oleoresin flow in loblolly pine, Pinus taeda L., but little is known about the genetic contribution to phenotypic variation in this trait. Here we report estimates of genetic variation in oleoresin flow and growth traits for a population of this species. Oleoresin yield, total height, and diameter were measured on 10-and 11-year-old trees from an experimental test in Santa Rosa County, Florida. Trees were from 72 full-sib families produced by mating 48 parents according to a disconnected partial diallel mating design. Resin yield was determined from breast-height samples collected at two times: once in the summer of 1999 when latewood was being produced (summer resin flow), and once in the spring of 2000 during earlywood formation (spring resin flow). All traits studied were found to be highly genetically variable and to have much greater additive than dominance variance. Estimates of narrow-sense heritability for spring and summer resin flow were in the moderate range and are comparable to values obtained for the growth traits. Additive genetic correlations between oleoresin yield and the growth traits were positive and moderately high, suggesting that directional selection to improve growth in loblolly pine will also result in increased production of oleoresin.

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Seasonal cambial growth and development of loblolly pine: Xylem formation, inner bark chemistry, resin ducts, and resin flow

Cited by 83 publications

References 19 publications

Influence of Fire and Southern Pine Beetle on Pine-Dominated Forests in The Linville Gorge Wilderness, North Carolina

Influence of Fire and Southern Pine Beetle on Pine-Dominated Forests in The Linville Gorge Wilderness, North Carolina

Importance of resin ducts in reducing ponderosa pine mortality from bark beetle attack

Estimates of genetic parameters for oleoresin and growth traits in juvenile loblolly pine

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