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<p>Dried stigmas of the saffron crop represent a supremely distinguished, sparsely grown, antique spice. In India, Jammu and Kashmir is renowned for its saffron cultivation. However, corm rot disease poses a serious threat to saffron production, with <i>Fusarium</i> species being the predominant pathogen in the Kashmir region. During a routine disease survey of saffron fields, characteristic corm rot symptoms were observed in the areas adjacent to the Saffron Research Station in Pampore, Pulwama. The study aimed to characterize the pathogen and to evaluate biocontrol potential of native <i>Trichoderma</i> isolates. Three fungal isolates were obtained from diseased samples, of which the Fus07 isolate was confirmed as the causal pathogen based on Kochʼs postulates. The fungus was identified as <i>Fusarium acuminatum</i> based on multilocus phylogenetic analyses of Internal Transcribed Spacer (ITS) and Translation Elongation Factor1-alpha (TEF1-α), in combination with morphological characters. The amplicon sequences are deposited in the NCBI GenBank database under the accession numbers OK175730 and OL372262, respectively. Furthermore, in vivo efficacy of native <i>Trichoderma</i> isolates against <i>F. acuminatum</i>, revealed that <i>Trichoderma</i> IV isolate showed the highest reduction in rot incidence (38.98%) and intensity (57.83%). Integrating biocontrol agents with continuous molecular surveillance may represent a sustainable approach to mitigate disease pressure and safeguard saffron productivity in India’s major cultivation zones.</p>

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Association of Fusarium acuminatum with corm rot of saffron (Crocus sativus L.) and its biological management using native Trichoderma isolates

  • 期刊论文

  • 发表日期：

    2026年5月6日

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  • Irtifa Lateef,
  • Mir. G. Hassan,
  • Bilal A. Padder,
  • Mushtaq A. Bhat,
  • Zahoor A. Bhat,
  • M. D. Shah,
  • Adfar Bashir,
  • Khurshid. A. Sofi,
  • B. S. Dhekale,
  • G. M. Lone

摘要

Dried stigmas of the saffron crop represent a supremely distinguished, sparsely grown, antique spice. In India, Jammu and Kashmir is renowned for its saffron cultivation. However, corm rot disease poses a serious threat to saffron production, with Fusarium species being the predominant pathogen in the Kashmir region. During a routine disease survey of saffron fields, characteristic corm rot symptoms were observed in the areas adjacent to the Saffron Research Station in Pampore, Pulwama. The study aimed to characterize the pathogen and to evaluate biocontrol potential of native Trichoderma isolates. Three fungal isolates were obtained from diseased samples, of which the Fus07 isolate was confirmed as the causal pathogen based on Kochʼs postulates. The fungus was identified as Fusarium acuminatum based on multilocus phylogenetic analyses of Internal Transcribed Spacer (ITS) and Translation Elongation Factor1-alpha (TEF1-α), in combination with morphological characters. The amplicon sequences are deposited in the NCBI GenBank database under the accession numbers OK175730 and OL372262, respectively. Furthermore, in vivo efficacy of native Trichoderma isolates against F. acuminatum, revealed that Trichoderma IV isolate showed the highest reduction in rot incidence (38.98%) and intensity (57.83%). Integrating biocontrol agents with continuous molecular surveillance may represent a sustainable approach to mitigate disease pressure and safeguard saffron productivity in India’s major cultivation zones.