Differential gene expression in loblolly pine (Pinus taeda L.) challenged with the fusiform rust fungus, Cronartium quercuum f.sp. fusiforme

Abstract Five surveys of pine plantations in East Texas over an 18-year period (1969-1987) indicated that fusiform rust (Cronartium quercuum [Berk.] Miyabe ex Shirai f. sp. fusiforme Birdsall and Snow) infection rates have increased to current levels of about 50% on slash pine (Pinus elliottii Engelm.) and are continuing to increase on loblolly pine (Pinus taeda L.) to 10-15% levels. South. J. Appl. For. 12(4):259-261.

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SAGE Profiling and demonstration of differential gene expression along the axial developmental gradient of lignifying xylem in loblolly pine (Pinus taeda)

Tree Physiology ◽

10.1093/treephys/22.5.301 ◽

2002 ◽

Vol 22 (5) ◽

pp. 301-310 ◽

Cited By ~ 78

Author(s):

W. W. Lorenz ◽

J. F.D. Dean

Keyword(s):

Gene Expression ◽

Pinus Taeda ◽

Differential Gene Expression ◽

Loblolly Pine ◽

Developmental Gradient ◽

Differential Gene

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Effect of Short-Term Storage of Triadimefon-Treated Loblolly Pine Seed on Incidence of Fusiform Rust

Southern Journal of Applied Forestry ◽

10.1093/sjaf/12.1.18 ◽

1988 ◽

Vol 12 (1) ◽

pp. 18-20

Author(s):

Walter D. Kelley

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Short Term ◽

Fusiform Rust ◽

Cronartium Quercuum ◽

Short Term Storage ◽

Pinus Taeda L ◽

Term Storage

Abstract Protection from fusiform rust, caused by Cronartium quercuum (Berk.) Miyabe ex Shirai f. sp. fusiforme Burdsall and Snow, on emerging seedlings of loblolly pine (Pinus taeda L.) was not diminished by storing the treated seeds up to 24 days before sowing. Young seedlings were inoculated with basidiospores of C quercuum f. sp. fusiforme 31 days after seeds were sown, and seedlings were examined for rust galls 7 months later. No galls were found on seedlings from seed dressed with triadimefon, regardless of length of storage. Percentages of seedlings with galls from seeds subjected to the triadimefon seed soak ranged from 12% (0 days storage) to 2% (24 days storage). Sixty-three percent of the seedlings from nontreated control seeds had galls. South. J. Appl. For. 12(1):18-20

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Tolerance of Loblolly Pines to Fusiform Rust

Southern Journal of Applied Forestry ◽

10.1093/sjaf/19.2.60 ◽

1995 ◽

Vol 19 (2) ◽

pp. 60-64 ◽

Cited By ~ 1

Author(s):

Charles H. Walkinshaw ◽

James P. Barnett

Keyword(s):

Pinus Taeda ◽

Rust Fungus ◽

The Other ◽

Diameter Growth ◽

Mature Trees ◽

Fusiform Rust ◽

Infected Tree ◽

Loblolly Pines ◽

Pinus Taeda L ◽

Natchez Trace Parkway

Abstract Loblolly pines (Pinus taeda L.) that were 8 to 17 yr old tolerated one to three fusiform rust (Cronartium quercuum [Berk.] Miyabe ex Shiraif sp. fusiforme) galls in their stems. Families with four or more galls in their stems lost 25% or more of the trees by age 17. In living trees with less than four stem galls, diameter growth was comparable to that of trees with no galls. Tolerance was indicated by the ability of loblolly pines to maintain the rust fungus in stems that had dbh's similarto asymptomatic trees on the same site. In plantations, the number of galls in the stem was generally one to two per infected tree. This was also true for mature trees (12 to 38 in. dbh) along the Natchez Trace Parkway. These trees have been infected with fusiform rust for nearly 100 yr. On the other hand, the presence of four or more stem galls seems to be a reliable indicator of mortality rather than tolerance. South. J. Applied For. 19 (2): 60-64.

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Performance of Livingston Parish Loblolly Pine in the Georgia Piedmont

Southern Journal of Applied Forestry ◽

10.1093/sjaf/10.2.84 ◽

1986 ◽

Vol 10 (2) ◽

pp. 84-87

Author(s):

H. R. Powers

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Coastal Plain ◽

Source Material ◽

Atlantic Coastal Plain ◽

Rust Disease ◽

Fusiform Rust ◽

Pinus Taeda L ◽

Georgia Piedmont ◽

Atlantic Coastal

Abstract Seedlings of Livingston Parish (Louisiana) loblolly pine (Pinus taeda L.) have been widely used across the Gulf and south Atlantic Coastal Plain to reduce the damage caused by the fusiform rust disease. Since this seed-source material provided the first rust-resistant seedlings available to forestland managers, it was used wherever rust damage was heavy, in some cases into the Piedmont north of the recommended area of planting. This paper evaluates the performance of ten-year-old Livingston Parish trees in such an area. The rust resistance of the Livingston Parish trees was outstanding, with 83% being free of disease as compared with only 14% of the commercial controls. There was no difference in growth between the two groups of trees, and ice breakage was not significantly greater in the Livingston Parish trees. South. J. Appl. For. 10:84-87, May 1986.

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Faculty Opinions recommendation of MicroRNAs in loblolly pine (Pinus taeda L.) and their association with fusiform rust gall development.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.1088554.541631 ◽

2007 ◽

Author(s):

Julia Kehr

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Fusiform Rust ◽

Pinus Taeda L

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Efficacy of Morning vs. Afternoon Applications of Triadimefon for Controlling Fusiform Rust

Southern Journal of Applied Forestry ◽

10.1093/sjaf/8.4.231 ◽

1984 ◽

Vol 8 (4) ◽

pp. 231-232

Author(s):

Walter D. Kelley

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Fusiform Rust ◽

Time Of Application ◽

Pinus Taeda L

Abstract No differences were found between mornings (0800-1000 h) and afternoon (1600-1800 h) applications of triadimefon on loblolly pine (Pinus taeda L.) seedlings for control of fusiform rust in nursery beds. Also, rates of 4, 6, 8, and 12 oz/ac were equally effective in protecting seedlings. Results indicate that a lesser rate than the standard 8 oz/ac/application can be used and that time of application is not important.¹

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Performance of Unthinned Loblolly and Slash Pine Plantations on Three Sites in South Carolina

Southern Journal of Applied Forestry ◽

10.1093/sjaf/1.4.8 ◽

1977 ◽

Vol 1 (4) ◽

pp. 8-10

Author(s):

D. H. Van Lear ◽

N. B. Goebel ◽

J. G. Williams

Keyword(s):

South Carolina ◽

Pinus Taeda ◽

Loblolly Pine ◽

Slash Pine ◽

The Other ◽

Fusiform Rust ◽

Growth And Survival ◽

Growing Seasons ◽

Pinus Taeda L ◽

Region Growth

Abstract The performance of adjacent unthinned plantations of loblolly (Pinus taeda L.) and slash pine (P. elliottii Engelm.) on three sites in South Carolina was evaluated after 16 growing seasons. Sites ranged from a noneroded Piedmont soil to an excessively drained sandy soil of the Sandhills physiographic region. Growth and survival varied widely among sites, with greatest productivity occurring in the Piedmont and the lowest in the Congaree Sandhills. Despite the droughty nature of the latter site, survival after 16 growing seasons was over 80 percent for both species. On a volume basis, loblolly pine outperformed slash pine at the upper Pidemont and Aiken Plateau sites, while slash pine was superior on the dry Sandhills site. Incidence of fusiform rust was much higher for both species at the Aiken Plateau than at the other sites.

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