Effects of White Root Rot Disease on Hevea brasiliensis (Muell. Arg.) – Challenges and Control Approach

Omorusi, V. I.

doi:10.5772/54024

Cited by 13 publications

(11 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, only a small amount of roots are left in the plot, which limits the development of white root disease (Rigidoporus microporus), which is responsible for annual mortality of 1 to 2% of trees in certain conditions (Martin and Plessix 1969). Even though no study has provided quantitative information on the link between the amount of biomass left on-site and the occurrence of white root disease, removal is strongly recommended for phytosanitary reasons (Mariau 2001;Nandris et al 1987;Omorusi 2012).…”

Section: Replanting Managementmentioning

confidence: 99%

Nutrient management of immature rubber plantations. A review

Vrignon-Brenas

Gay

Ricard

et al. 2019

Agron. Sustain. Dev.

View full text Add to dashboard Cite

The rapid expansion of rubber tree plantations in recent decades has been accompanied by dramatic negative ecological and social impacts. Rubber sector stakeholders consequently engaged in sustainable production of rubber. Despite the lack of harvest during the immature stage following planting, this period plays a key role in future yields. Management practices, particularly fertilization regimes, are used by farmers to shorten the immature period as much as possible. This entails maintaining or even improving the productivity of existing plantations to face the demand for natural rubber. This review focuses specifically on the immature period of rubber tree plantations, as it is the most critical period for nutrient management. We reviewed available knowledge on fertilization practices, soil management, and nutrient dynamics in rubber plantations with the goal of developing a nutrient balance approach for this crop. Our review revealed (1) a notable difference between fertilizer recommendations made by technical institutes and those reported in the scientific literature; (2) that even though nutrient diagnostic methods could help growers adapt the fertilization of rubber trees more than 3 years of age, further studies are needed to adapt current methods to the wide range of cultivation areas; and (3) that the nutrient budget approach may be the best way to incorporate the variety of rubber tree cultivation conditions. In conclusion, the nutrient budget method is a promising way to improve the sustainability of rubber plantations through fertilization making it possible to increase nutrient use efficiency. A comprehensive approach based on nutrient budgets requires further in-depth studies to examine nutrient dynamics in a wide range of conditions, including intercropping and logging residue management between clearcutting and replanting.

show abstract

Section: Replanting Managementmentioning

confidence: 99%

Nutrient management of immature rubber plantations. A review

Vrignon-Brenas

Gay

Ricard

et al. 2019

Agron. Sustain. Dev.

View full text Add to dashboard Cite

show abstract

“…Patogen ini menyebar melalui kontak antara akar tanaman yang sakit dengan yang sehat. Rizomorf dari R. microporus akan menjalar pada leher akar dan selanjutnya menginfeksi akar lateral, menyebabkan akar membusuk sehingga tanaman mati dan tumbang (Omorusi, 2012). Perkembangan patogen sangat dipengaruhi oleh kondisi lingkungan, antara lain kelembapan di atas 90%, kandungan bahan organik tinggi, aerasi yang baik, tanah gembur/berpori, dan pH 6-7 (Sinulingga & Eddy, 1989).…”

Section: Pendahuluanunclassified

Keefektifan Biofungisida Trichoderma sp. dengan Tiga Jenis Bahan Pembawa terhadap Jamur Akar Putih Rigidoporus microporus

Amaria¹,

Soesanthy²,

Ferry³

2016

J. Tanaman Industri dan Penyegar

View full text Add to dashboard Cite

ABSTRAKKeefektifan Trichoderma sp. dalam mengendalikan penyakit jamur akar putih (JAP) dipengaruhi oleh faktor lingkungan, oleh karena itu lebih baik dibuat dalam bentuk biofungisida. Biofungisida Trichoderma sp. dengan bahan pembawa yang sesuai diharapkan mampu menekan infeksi patogen R. microporus di pembibitan. Tujuan penelitian adalah mengetahui keefektifan biofungisida Trichoderma sp. dengan tiga jenis bahan pembawa terhadap penyakit JAP pada bibit karet. Penelitian dilaksanakan di Laboratorium dan Rumah Kasa Balai Penelitian Tanaman Industri dan Penyegar, Sukabumi, mulai bulan Juli sampai Desember 2013. Percobaan menggunakan rancangan faktorial dengan 3 ulangan. Faktor pertama adalah 4 jenis Trichoderma, yaitu Trichoderma virens, T. hamatum, T. amazonicum, dan T. atroviride, dan faktor kedua adalah 3 jenis bahan pembawa, yaitu molase, kompos, dan talk. Biofungisida dibuat dari masingmasing jenis Trichoderma dengan masing-masing jenis pembawa sehingga terbentuk 12 biofungisida. Populasi spora Trichoderma sp. dalam biofungisida adalah 10 8 spora/ml dan jumlah yang diaplikasikan sebanyak 100 ml atau gram per tanaman. Bibit tanaman karet yang digunakan adalah klon AVROS 2037 hasil okulasi berumur 3 bulan dalam polybag. Peubah pengamatan meliputi masa inkubasi, intensitas dan penekanan serangan JAP, serta populasi Trichoderma sp. dalam tanah. Hasil penelitian menunjukkan bahwa tidak ada interaksi antara jenis Trichoderma dengan jenis bahan pembawa. Keempat jenis Trichoderma yang diuji memiliki keefektifan yang sama dalam menekan penyakit JAP pada bibit karet. Bahan pembawa talk, kompos, dan molase dapat meningkatkan kemampuan pertumbuhan Trichoderma sp., tetapi bahan pembawa talk mempunyai kemampuan paling tinggi dalam menekan penyakit JAP.Kata kunci: Karet, jamur akar putih, biofungsida, Trichoderma sp. ABSTRACT The effectiveness of Trichoderma sp as biocontrol for white root disease is determined by the environment, thus it is best applied as biofungicide. The application of Trichoderma sp. with suitable carrier is expected to suppress pathogen (Rigidoporus

show abstract

“…is an essential and critical raw material for many specialized products, especially for medical devices, aircraft parts, and car tires. The rubber tree has become an economically important crop in many countries, especially in Southeast Asia [ 6 , 22 , 64 ]. Yet numerous factors, both internal (such as rubber tree clone) and external, influence the yield gained from natural rubber production.…”

Section: Introductionmentioning

confidence: 99%

“…The roots of the rubber tree turn creamier and softer after being infected by R. microporus . The fungus has the ability to release cell wall-degrading enzymes into rubber tree roots, leading to defects in host cell lignification, which is beneficial for fungal penetration [ 64 ]. The defensive latex of the rubber tree did not have any negative effects on R. microporus and, conversely, the fungi displayed fast growth due to their various gene activities, possibly related to latex degradation [ 62 ].…”

Section: Introductionmentioning

confidence: 99%

A novel rubber tree PR-10 protein involved in host-defense response against the white root rot fungus Rigidoporus microporus

et al. 2023

View full text Add to dashboard Cite

Background White root rot disease in rubber trees, caused by the pathogenic fungi Rigidoporus microporus, is currently considered a major problem in rubber tree plantations worldwide. Only a few reports have mentioned the response of rubber trees occurring at the non-infection sites, which is crucial for the disease understanding and protecting the yield losses. Results Through a comparative proteomic study using the two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) technique, the present study reveals some distal-responsive proteins in rubber tree leaves during the plant-fungal pathogen interaction. From a total of 12 selected differentially expressed protein spots, several defense-related proteins such as molecular chaperones and ROS-detoxifying enzymes were identified. The expression of 6 candidate proteins was investigated at the transcript level by Reverse Transcription Quantitative PCR (RT-qPCR). In silico, a highly-expressed uncharacterized protein LOC110648447 found in rubber trees was predicted to be a protein in the pathogenesis-related protein 10 (PR-10) class. In silico promoter analysis and structural-related characterization of this novel PR-10 protein suggest that it plays a potential role in defending rubber trees against R. microporus infection. The promoter contains WRKY-, MYB-, and other defense-related cis-acting elements. The structural model of the novel PR-10 protein predicted by I-TASSER showed a topology of the Bet v 1 protein family, including a conserved active site and a ligand-binding hydrophobic cavity. Conclusions A novel protein in the PR-10 group increased sharply in rubber tree leaves during interaction with the white root rot pathogen, potentially contributing to host defense. The results of this study provide information useful for white root rot disease management of rubber trees in the future.

show abstract

Effects of White Root Rot Disease on Hevea brasiliensis (Muell. Arg.) – Challenges and Control Approach

Cited by 13 publications

References 8 publications

Nutrient management of immature rubber plantations. A review

Nutrient management of immature rubber plantations. A review

Keefektifan Biofungisida Trichoderma sp. dengan Tiga Jenis Bahan Pembawa terhadap Jamur Akar Putih Rigidoporus microporus

A novel rubber tree PR-10 protein involved in host-defense response against the white root rot fungus Rigidoporus microporus

Contact Info

Product

Resources

About