Induction of systemic resistance to Xanthomonas oryzae pv. oryzae by salicylic acid in Oryza sativa (L.)

2003 ◽  
Vol 110 (5) ◽  
pp. 419-431 ◽  
Author(s):  
R. Mohan Babu ◽  
A. Sajeena ◽  
A. Vijaya Samundeeswari ◽  
A. Sreedhar ◽  
P. Vidhyasekaran ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Xanthomonas Oryzae ◽  
Systemic Resistance

scholarly journals Salicylic acid modulates arsenic toxicity by reducing its root to shoot translocation in rice (Oryza sativa L.)

2015 ◽  
Vol 6 ◽  
Author(s):  
Amit P. Singh ◽  
Garima Dixit ◽  
Seema Mishra ◽  
Sanjay Dwivedi ◽  
Manish Tiwari ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Arsenic Toxicity

scholarly journals Impact of Salicylic Acid Content and Growing Environment on Phytoprostane and Phytofuran (Stress Biomarkers) in Oryza sativa L.

2018 ◽  
Vol 66 (47) ◽  
pp. 12561-12570 ◽  
Author(s):  
M. Pinciroli ◽  
R. Domínguez-Perles ◽  
M. Garbi ◽  
A. Abellán ◽  
C. Oger ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Oryza Sativa ◽  
Acid Content ◽  
Oryza Sativa L ◽  
Stress Biomarkers ◽  
Growing Environment

scholarly journals Uji Tanaman Padi Hasil Persilangan Varietas Lokal dengan IRBB-27 terhadap Pertumbuhan dan Ketahanan Hawar Daun Bakteri

2016 ◽  
Vol 1 (1) ◽  
pp. 227-238
Author(s):  
Nurdin Nurdin ◽  
Bakhitar Bakhtiar ◽  
Cut Nur Ichsan
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Xanthomonas Oryzae

Abstrak. Penurunan hasil produksi padi disebabkan beberapa faktor salah satunya adalah penyakit hawar daun bakteri (HDB). Penyakit HDB yang disebabkan oleh Xanthomonas oryzae pv. oryzae (Xoo). Penelitian ini bertujuan untuk mengetahui pertumbuhan dan ketahanan tanaman padi (Oryza sativa L.) hasil persilangan antara genotipe lokal dan IRBB-27 terhadap Hawar Daun Bakteri. Penelitian ini menggunakan Rancang Acak Lengkap (RAL) non faktorial dengan perlakuan genotipe dan 5 taraf diulang sebanyak 5 kali sehingga  diperoleh 25 satuan percobaan. Setiap satuan prcobaan terdiri 3 tanaman sehingga total tanaman yang diamati yaitu 75 tanaman. Genotipe padi yang digunakan pada penelitian ini adalah Sigupai, Sikuneng, IRBB-27, F1 (Sg/IRBB-27) dan F1 (Sk/IRBB-27). Hasil penelitian menunjukkan bahwa padi Sg/IRBB-27 dan Sk/IRBB-27 tahan terhadap hawar daun bakteri. Lesio terpendek dijumpai pada genotipe F1 (Sg/IRBB-27) yaitu 0,34 cm pada 14 HSI. Sedangkan persentase rata-rata intensitas serangan terendah dijumpai pada F1 (Sg/IRBB-27) yaitu 0,49 %. Tanaman Sg/IRBB-27 dan Sk/IRBB-27 lebih tinggi jika dibandingkan dengan genotipe IRBB-27. Tanaman Sg/IRBB-27 dan Sk/IRBB-27 lebih tinggi jika dibandingkan dengan genotipe IRBB-27. F1 (Sk/IRBB-27) memiliki rata-rata tinggi tanaman mencapai 145,93 cm, sedangkan F1 (Sg/IRBB-27) rata-rata tinggi tanaman 142,40 cm ini menunjukkan bahwa hasil kedua persilangan belum memiliki tinggi tanaman padi yang ideal yaitu 90-100 cm. 

scholarly journals Pertumbuhan, Hasil dan Ketahanan Enam varietas Padi (Oryza sativa L.) Terhadap Penyakit Hawar Daun Bakteri (Xanthomonas oryzae pv oryzae)

2016 ◽  
Vol 1 (1) ◽  
pp. 138-146
Author(s):  
Remilda Hanum ◽  
Bakhtiar Bakhtiar ◽  
Lukman Hakim
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Xanthomonas Oryzae

Penelitian ini bertujuan untuk mengamati pertumbuhan, hasil dan ketahanan tanaman padi (Oryza sativa L.) terhadap penyakit hawar daun bakteri (Xanthomonas oryzae pv oryzae). Varietas padi yang digunakan antara lain IRBB27, IR64, Inpari 16, Ciherang, Inpari 30, dan Inpari 31, perlakuan diulang sebanyak 3 kali sehingga diperoleh 18 satuan  percobaan. Setiap percobaan menggunakan 4 tanaman sehingga total tanaman yang akan diamati yaitu 72 tanaman. Pengamatan meliputi tinggi tanaman, jumlah anakan  per tanaman, jumlah malai pertanaman, jumlah gabah berisi per malai, persentase gabah hampa per malai, bobot seribu butir, produksi per tanaman, indeks panen, masa inkubasi penyakit dan intensitas penyakit hawar daun bakteri. Hasil pengujian menunjukkan bahwa semua varietas tahan terhadap penyakit hawar daun bakteri 

scholarly journals Proteomic analysis of salicylic acid regulation of grain filling of two near-isogenic rice (Oryza sativa L.) varieties under soil drying condition

2020 ◽  
Vol 151 ◽  
pp. 659-672 ◽  
Author(s):  
Romesh Eric Romy Kimbembe ◽  
Guangyan Li ◽  
Guanfu Fu ◽  
Baohua Feng ◽  
Weimeng Fu ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Oryza Sativa ◽  
Proteomic Analysis ◽  
Oryza Sativa L ◽  
Grain Filling ◽  
Soil Drying ◽  
Drying Condition

scholarly journals Complex genetic networks underlying the defensive system of rice (Oryza sativa L.) to Xanthomonas oryzae pv. oryzae

2006 ◽  
Vol 103 (21) ◽  
pp. 7994-7999 ◽  
Author(s):  
Z. K. Li ◽  
M. Arif ◽  
D. B. Zhong ◽  
B. Y. Fu ◽  
J. L. Xu ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Genetic Networks ◽  
Xanthomonas Oryzae

scholarly journals Assessment of Silicon- and Mycorrhizae- Mediated Constitutive and Induced Systemic Resistance in Rice, Oryza sativa L., against the Fall Armyworm, Spodoptera frugiperda Smith

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2126
Author(s):  
Santhi Bhavanam ◽  
Michael J. Stout
Keyword(s):  
Oryza Sativa ◽  
Induced Resistance ◽  
Spodoptera Frugiperda ◽  
Induced Systemic Resistance ◽  
Plant Defenses ◽  
Oryza Sativa L ◽  
Fall Armyworm ◽  
Systemic Resistance ◽  
Weight Gains ◽  
Induce Resistance

Induced resistance provides protection in plants against insect herbivores. Silicon and mycorrhizae often prime plant defenses and thereby enhance plant resistance against herbivores. In rice, Oryza sativa L., insect injury has been shown to induce resistance against future defoliators. However, it is unknown if silicon and mycorrhizae treatments in combination with insect injury result in greater induced resistance. Using the fall armyworm (FAW), Spodoptera frugiperda Smith, two experiments were conducted to investigate whether (1) silicon or mycorrhizae treatment alters resistance in rice and (2) induced systemic resistance in response to insect injury is augmented in silicon- or mycorrhizae- treated plants. In the first experiment, silicon treatment reduced FAW growth by 20% while mycorrhizae increased FAW growth by 8%. In the second experiment, insect injury induced systemic resistance, resulting in a 23% reduction in FAW larval weight gains on injured compared to uninjured plants, irrespective of treatment. Neither silicon nor mycorrhizae enhanced this systemic resistance in insect-injured plants. Furthermore, mycorrhizae resulted in the systemic increase of peroxidase (POD) and polyphenol oxidase (PPO) activities, and injury caused a slight decrease in these enzyme activities in mycorrhizae plants. Silicon treatment did not result in a stronger induction of POD and PPO activity in injured plants. Taken together, these results indicate a lack of silicon and mycorrhizae priming of plant defenses in rice. Regardless of injury, silicon reduced FAW weight gains by 36%. Based on these results, it appears silicon-mediated biomechanical rather than biochemical defenses may play a greater role in increased resistance against FAW in rice.

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