Selection of teak clones resistant to the fungus Ceratocystis fimbriata

Oliveira, Carlos Alberto da Cunha; Martins, Geisson Mateus de Jesus; Santos, Fernando André Silva; Anjos, Isabela Vera dos; Amorim, Ana Flávia Silva; Preisigke, Sandra da Costa; Gílio, Thiago Alexandre Santana; Araújo, Kelly Lana; Neves, Leonarda Grillo

doi:10.18671/scifor.v49n130.21

Cited by 2 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the lack of registered fungicides for efficient control of Ceratocystis wilt in teak, there is a crucial need to adopt alternative disease management practices like the spectral-based approach used in this research. A previous study by Oliveira et al (2021) [ 21 ] found significant variation in the resistance and susceptibility of 37 teak clones to the fungus, with five clones exhibiting high resistance, although none of the genotypes studied was immune. The study emphasizes the importance of selecting resistant clones (regarding the damage of the stem) for controlling wilt disease in teak, increasing plantation productivity.…”

Section: Resultsmentioning

confidence: 97%

“…Furthermore, the significant effects of genotype on these traits confirm that the genetic diversity present in the teak panel is a determining factor in the variability of these traits. The significant differences observed between the genotypes for each trait suggest that these traits could be potentially used in breeding programs to select for improved resistance to Ceratocystis wilt, as well as for increased early growth [ 7 , 21 ].…”

Section: Resultsmentioning

confidence: 99%

“…Subsequently, we considered the following traits to quantify the damage to seedlings: Severity (S; in %), Lesion Area (LA; in cm 2 ), and Lesion Length (LL; in cm). Severity was determined by using the total plant height in centimeters (AT) and the compression of the lesion in centimeters (CL) by the methodology proposed by [ 13 , 21 ], using the formula (CLx100)/AT.…”

Section: Methodsmentioning

confidence: 99%

“…To complete Koch’s postulate, we collected segments of the symptomatic tissue from each genotype for re-isolation using the carrot bait method, as described by Oliveira et al [ 21 ]. These measures and the re-isolation method allowed us to accurately evaluate the resistance of each teak genotype to C. fimbriata .…”

Section: Methodsmentioning

confidence: 99%

“…Ceratocystis wilt is currently one of the major limitations and significant threats to teak plantations in Brazil and South America. Infected teak plants exhibit visible symptoms such as wood lesions, wilting, and dry pointers, which ultimately lead to the death of the entire plant [ 19 , 20 , 21 ], as shown in Figure 1 . The fungus is primarily spread through wounds in the plant, such as those caused by pruning or insect damage [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Application of Near-Infrared Reflectance Spectroscopy for Predicting Damage Severity in a Diverse Panel of Tectona grandis Caused by Ceratocystis fimbriata

Anjos

Mohsin

Mora‐Poblete

et al. 2023

Plants

Self Cite

View full text Add to dashboard Cite

Tectona grandis Linn., also known as teak, is a highly valued species with adaptability to a wide range of climatic conditions and high tolerance to soil variations, making it an attractive option for both commercial and conservation purposes. In this sense, the classification of cultivated teak genotypes is crucial for both breeding programs and conservation efforts. This study examined the relationship between traits related to damage in the stem of teak plants caused by Ceratocystis fimbriata (a soil-borne pathogen that negatively impacts the productivity of teak plantations) and the spectral reflectance of 110 diverse clones, using near-infrared spectroscopy (NIRS) data and partial least squares regression (PLSR) analysis. Cross-validation models had R2 = 0.894 (ratio of standard error of prediction to standard deviation: RPD = 3.1), R2 = 0.883 (RPD = 2.7), and R2 = 0.893 (RPD = 2.8) for predicting stem lesion area, lesion length, and severity of infection, respectively. Teak genotypes (clones) can benefit from the creation of a calibration model utilizing NIRS-generated data paired with PLSR, which can effectively screen the magnitude of damage caused by the fungus. Overall, while the study provides valuable information for teak breeding and conservation efforts, a long-term perspective would be essential to evaluate the sustainability of teak genotypes over various growth stages and under continuous pathogen pressure.

show abstract

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Application of Near-Infrared Reflectance Spectroscopy for Predicting Damage Severity in a Diverse Panel of Tectona grandis Caused by Ceratocystis fimbriata

Anjos

Mohsin

Mora‐Poblete

et al. 2023

Plants

Self Cite

View full text Add to dashboard Cite

show abstract

First report of Ceratocystis fimbriata causing wilt disease of soursop in South Sumatra, Indonesia

PRATAMA,

MUSLIM,

SUWANDI

et al. 2024

Biodiversitas

View full text Add to dashboard Cite

Abstract. Pratama R, Muslim A, Suwandi S, Suparman Shk. 2023. First report of Ceratocystis fimbriata causing wilt disease of soursop in South Sumatra, Indonesia. Biodiversitas 24: 6711-6721. Ceratocystis fungus is a well-known pathogen that frequently attacks agroforestry plants. Symptoms of canker and wilt in soursop plants (Anona muricata L.) similar to those of ceratocystis disease with 57-100% mortality were first observed in South Sumatra, Indonesia in 2021. This study aimed to describe the symptomatology of the new disease and characterize isolates of Ceratocystis fimbriata Ellis & Halst. obtained from diseased soursop plants. The identification of this pathogen involved a comprehensive polyphasic analysis, which combined morphological and molecular characteristics derived from specific genomic regions (ITS and ?-tubulin). Morphological and phylogenetic analysis revealed that all pathogen isolates were identified as C. fimbriata. All the population showed uniform morphology, comprising ITS5 and ITS7b haplotypes. The pathogenicity test indicated that C. fimbriata induced similar symptoms similar to natural symptoms, resulting in mortality rates of 50-90%. The results of pathogenicity tests of A. muricata isolates showed their high pathogenicity toward other Ceratocystis hosts plants, including Artocarpus heterophyllus Lam. and Acacia mangium Willd. These tests resulted in the death rates of 15-50% and 75-100%, respectively, which closely resembled the pathogenicity observed on A. muricata. Both isolates of the ITS5 haplotype exhibited nearly identical pathogenicity on the three hosts, while ITS7b displayed higher aggressiveness. This is the the first report of C. fimbriata as a causal agent of wilt in soursop trees in Indonesia and worldwide, highlighting the importance of understanding this pathogen and its management to mitigate its impact on agroforestry plants.

show abstract

Selection of teak clones resistant to the fungus Ceratocystis fimbriata

Cited by 2 publications

References 0 publications

Application of Near-Infrared Reflectance Spectroscopy for Predicting Damage Severity in a Diverse Panel of Tectona grandis Caused by Ceratocystis fimbriata

Application of Near-Infrared Reflectance Spectroscopy for Predicting Damage Severity in a Diverse Panel of Tectona grandis Caused by Ceratocystis fimbriata

First report of Ceratocystis fimbriata causing wilt disease of soursop in South Sumatra, Indonesia

Contact Info

Product

Resources

About