Biochemical responses associated with induced resistance to Colletotrichum acutatum in Pinus radiata seedlings treated with methyl jasmonate and Trichoderma spp.

2017 ◽  
Vol 47 (5) ◽  
pp. e12350 ◽  
Author(s):  
T. Reglinski ◽  
J. T. Taylor ◽  
G. L. Northcott ◽  
A. Ah Chee ◽  
M. Spiers ◽  
...  
Keyword(s):  
Methyl Jasmonate ◽  
Induced Resistance ◽  
Pinus Radiata ◽  
Colletotrichum Acutatum ◽  
Trichoderma Spp ◽  
Biochemical Responses

scholarly journals Biochemical responses to ultraviolet-C radiation and methyl jasmonate inPinus radiataseedlings that accompany induced resistance toDiplodia pinea

2012 ◽  
Vol 62 (4) ◽  
pp. 851-858 ◽  
Author(s):  
T. Reglinski ◽  
J. T. Taylor ◽  
A. Ah Chee ◽  
G. Northcott ◽  
M. Spiers
Keyword(s):  
Methyl Jasmonate ◽  
Induced Resistance ◽  
Biochemical Responses ◽  
Ultraviolet C

scholarly journals Pengaruh Induksi Resistensi oleh Khamir Candida tropicalis terhadap Pertumbuhan Tanaman Cabai Terinfeksi Colletotrichum acutatum

Agrikultura ◽  
2019 ◽  
Vol 30 (1) ◽  
pp. 17
Author(s):  
Sri Hartati ◽  
Linda Tarina ◽  
Endah Yulia ◽  
Luciana Djaya
Keyword(s):  
Plant Height ◽  
Induced Resistance ◽  
Candida Tropicalis ◽  
Yield Loss ◽  
Biocontrol Agent ◽  
Dry Weight ◽  
Positive Control ◽  
Negative Control ◽  
Leaf Number ◽  
Colletotrichum Acutatum

ABSTRACTEffect of induced resistance by Candida tropicalis on the growth of chili plants infected by Colletotrichum acutatumColletotrichum acutatum is a major pathogen of chili that causes a big yield loss. Candida tropicalis has been reported as a biocontrol agent antagonistic to C. acutatum. The research was objected tofind out the effect of induced resistance by C. tropicalis on the growth of chili plants infected by C. acutatum. The application of the yeast was carried out by seed dipping and seedling spraying methods. As treatments, C. acutatum, the pathogen was inoculated at different time, i.e. A = inoculation at 3 days after the induction (dai) by C. tropicalis, B = inoculation at 7 dai, C = inoculation at 10 dai, D = positive control on inoculation at 3 dai, E = positive control on inoculation at 7 dai, F = positive control on inoculation at 10 dai, G = negative control with no induction nor inoculation. The results showed that the induction by C. tropicalis was able to increase the plant height, leaf number, and dry weight. The highest increase of plant height of 30.72% was caused by induction of C. tropicalis inoculated at 7 dai. Induction of C. tropicalis inoculated at 3 dai increased the leaf number by 49.47%, and the plant dry weight by 50%. C. tropicalis has a potency to be developed as plant growth inducer.Keywords: Antagonist, Inoculation, Fungi, YeastABSTRAKJamur Colletotrichum acutatum merupakan patogen penyebab kehilangan hasil panen yang cukup besar pada tanaman cabai. Salah satu mikrob antagonis jamur ini yang telah dilaporkan adalah khamir Candida tropicalis. Penelitian ini bertujuan untuk mengetahui pengaruh induksi resistensioleh C. tropicalis terhadap pertumbuhan tanaman cabai terinfeksi C. acutatum. Penelitian dilaksanakan dengan menggunakan teknik perendaman benih dan penyiraman bibit tanaman cabaimenggunakan suspensi C. tropicalis dengan waktu inokulasi patogen C. acutatum yang berbeda. Perlakuan tersebut adalah A = Inokulasi C. acutatum 3 hari setelah perlakuan induksi C. tropicalis (hsp), B = Inokulasi C. acutatum 7 hsp, C = Inokulasi C. acutatum 10 hsp, D = Kontrol (+) dengan inokulasi C. acutatum 3 hsp, E = Kontrol (+) dengan inokulasi C. acutatum 7 hsp, F = Kontrol (+) dengan inokulasi C. acutatum 10 hsp, G = Kontrol (-) tanpa induksi dan inokulasi. Hasil penelitianmenunjukkan bahwa perlakuan induksi resistensi oleh khamir C. tropicalis mampu meningkatkan tinggi, jumlah daun, dan bobot kering tanaman cabai. Kemampuan meningkatkan tinggi tanamancabai tertinggi terjadi pada perlakuan C. tropicalis dengan waktu inokulasi 7 hsp yaitu sebesar 30,72%. Perlakuan khamir C. tropicalis dengan inokulasi patogen 3 hsp mampu meningkatkan jumlah daun tanaman cabai sebesar 49,47%. Perlakuan C. tropicalis dengan waktu inokulasi 3 hsp mampu meningkatkan bobot kering tanaman sebesar 50%. Khamir C. tropicalis berpotensi untuk dikembangkan sebagai agens pemacu pertumbuhan tanaman.Kata Kunci: Antagonis, Inokulasi, Jamur, Patogen

Physiological trade-offs associated with methyl jasmonate - induced resistance in Pinus radiata

2008 ◽  
Vol 38 (4) ◽  
pp. 677-684 ◽  
Author(s):  
Nick Gould ◽  
Tony Reglinski ◽  
Mike Spiers ◽  
Joe T. Taylor
Keyword(s):  
Growth Rate ◽  
Disease Resistance ◽  
Methyl Jasmonate ◽  
Water Potential ◽  
Seedling Growth ◽  
Pinus Radiata ◽  
Transpiration Rate ◽  
Meja Treatment ◽  
Seedling Growth Rate ◽  
The Impact

Methyl jasmonate (MeJA) can induce defence responses in plants to pathogen attack, but it can also have consequences for plant growth. The transient effects of exogenous MeJA treatment on the resistance of Monterey pine ( Pinus radiata D. Don) seedlings to Diplodia pinea (Desm.) Kickx. and some physiological parameters affecting the impact of treatment on seedling growth were investigated. Following foliar application of 4.5 mmol·L–1 MeJA, disease resistance was greatest 1–2 weeks after treatment and declined with time thereafter. Elevated disease resistance was accompanied by a reduction in seedling growth rate the second week following MeJA treatment. Thereafter, seedling growth rate recovered and exceeded that of the control seedlings 4–5 weeks after MeJA treatment. Within hours of MeJA treatment, reductions in both the capacity of photosystem II and transpiration rate were observed, resulting in a concomitant reduction in net CO2 uptake rate. The slight reduction in transpiration rate was also associated with an increase in needle water potential. Longer term measurements showed no effect of MeJA on photosynthetic rate, transpiration rate, chlorophyll content, or shoot water potential and thus could not account for the elevated growth rate observed 4–5 weeks after treatment.

Evidence for the occurrence of induced resistance to pitch canker, caused by Gibberella circinata (anamorph Fusarium circinatum), in populations of Pinus radiata

2010 ◽  
Vol 41 (3) ◽  
pp. 227-232 ◽  
Author(s):  
T. R. Gordon ◽  
S. C. Kirkpatrick ◽  
B. J. Aegerter ◽  
A. J. Fisher ◽  
A. J. Storer ◽  
...  
Keyword(s):  
Induced Resistance ◽  
Pinus Radiata ◽  
Pitch Canker ◽  
Fusarium Circinatum ◽  
Gibberella Circinata

Effect of methyl jasmonate on arachidonic acid-induced resistance of potato to late blight

2000 ◽  
Vol 36 (2) ◽  
pp. 181-186 ◽  
Author(s):  
L. I. Il’inskaya ◽  
G. I. Chalenko ◽  
E. A. Perekhod ◽  
N. G. Gerasimova ◽  
O. L. Ozeretskovskaya
Keyword(s):  
Arachidonic Acid ◽  
Late Blight ◽  
Methyl Jasmonate ◽  
Induced Resistance

Systemically Induced Resistance Against Maize Diseases by Trichoderma spp.

2020 ◽  
pp. 111-123
Author(s):  
Jie Chen ◽  
Murugappan Vallikkannu ◽  
Valliappan Karuppiah
Keyword(s):  
Induced Resistance ◽  
Trichoderma Spp
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