Epidemiology and Management of Corm Rot of Saffron

Gupta, Vishal; Razdan, V. K.; Sharma, Satish Kumar

doi:10.1007/978-3-031-10000-0_10

Cited by 1 publication

(4 citation statements)

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“…Gupta and coworkers in 2011 classified the saffron corm rot-causing Fusarium oxysporum isolated from Kishtwar, in India as Fusarium oxysporum f.sp. gladioli [15]. However, in our previous study, we found the pathogenic Fusarium oxysporum isolated from Kashmir was different from Fusarium oxysporum f.sp.…”

Section: Discussionmentioning

confidence: 70%

“…Fusarium oxysporum is among the first five most devastating plant pathogens, with about 150 formae speciales [50][51][52]. The forma specialis gladioli has been reported to infect the members of Iridaceae family and is also reported to be a major pathogen of Crocus sativus, the world over [14,15,20,21]. Gupta and coworkers in 2011 classified the saffron corm rot-causing Fusarium oxysporum isolated from Kishtwar, in India as Fusarium oxysporum f.sp.…”

Section: Discussionmentioning

confidence: 99%

“…Corm rot results in spongy decay, deformations, and discoloration of corms that ultimately leads to wilting of the leaves and death of the plant [14][15][16][17][18][19]. Fusarium oxysporum (corm rot agent) from saffron in Italy and Spain has been classified as Fusarium oxysporum f.sp.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous study, based on ITS marker phylogeny, Fox R1 was found to be different from Fox f.sp. gladioli; the commonly reported saffron pathogen [15,16]. Therefore, in the present study, Fox R1 was classified based on a comparison of selected housekeeping gene sequences and disease assays.…”

Section: Introductionmentioning

confidence: 99%

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Invasion and Colonization of Pathogenic Fusarium oxysporum R1 in Crocus sativus L. during Corm Rot Disease Progression

Bhagat

Magotra

Gupta

et al. 2022

JoF

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The corm rot of saffron caused by Fusarium oxysporum (Fox) has been reported to be the most destructive fungal disease of the herb globally. The pathogen, Fusarium oxysporum R1 (Fox R1) isolated by our group from Kashmir, India, was found to be different from Fusarium oxysporum f.sp. gladioli commonly reported corm rot agent of saffron. In the present study, Fox R1 was further characterized using housekeeping genes and pathogenicity tests, as Fusarium oxysporum R1 f.sp. iridacearum race 4. Though Fox R1 invaded the saffron plant through both corm and roots, the corm was found to be the preferred site of infection. In addition, the route of pathogen movement wastracked by monitoring visual symptoms, semi-quantitative PCR, quantitative-PCR (q-PCR), real-time imaging of egfp-tagged Fusarium oxysporum R1, and Fox R1 load quantification. This study is the first study of its kind on the bidirectional pathogenesis from corm to roots and vice-versa, as the literature only reports unidirectional upward movement from roots to other parts of the plant. In addition, the colonization pattern of Fox R1 in saffron corms and roots was studied. The present study involved a systematic elucidation of the mode and mechanism of pathogenesis in the saffron Fusarium oxysporum strain R1 pathosystem.

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Section: Discussionmentioning

confidence: 70%