Antifungal potential of Colchicum luteum and determination of colchicine content using HPLC for application as a fungicide

Rather, Rauoof Ahmad; Bano, Haleema; Perveen, Kahkashan; Bukhari, Najat A.; Padder, Shahid Ahmad; Baba, Tawseef Rehman; Qureshi, Aleem; Khan, Nadeem Ahmad; Khan, Afzal Husain; Samaraweera, Hasara

doi:10.1016/j.jksus.2022.101876

Cited by 15 publications

(10 citation statements)

References 39 publications

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“…Padder et al . 66 reported an increase in germination percentage up to 95%, disease incidence containment [17% against the control (76.09%)], shoot length, and root length as high as 25–50% in Dalbergia sissoo inoculated with bacterial isolates due to their ability to produce a plethora of antifungal compounds like chitinase. The reduced disease incidence and intensity and stress alleviation have been the prominent attribute of bacterial endophytic formulations due to their ability to enhance the different gene expressions coupled with elevated biochemical response in the host 1 .…”

Section: Discussionmentioning

confidence: 99%

“…The present investigation's increased germination percentage, yield, and growth could inhibit some prevalent seed-associated phytopathogens by cascading bacteria-associated metabolites. Chitinase seems to play a central role in phytopathogen containment 66 . This could be why the highest chitinase-producing strain smmppsap2 resulted in the highest germination percentage, ultimately alleviating the host's biotic stress and ultimately good yield and increased plant growth.…”

Section: Discussionmentioning

confidence: 99%

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Dynamics, phylogeny and phyto-stimulating potential of chitinase synthesizing bacterial root endosymbiosiome of North Western Himalayan Brassica rapa L.

Padder

Rather

Bhat

et al. 2022

Sci Rep

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The less phytopathogen susceptibility in Himalayan Brassica rapa L. has made it an exceptional crop eluding synthetic pesticide inputs, thereby guarantying economically well-founded and ecologically sustainable agriculture. The relevance of niche microflora of this crop has not been deliberated in this context, as endosymbiosiome is more stable than their rhizosphere counterparts on account of their restricted acquaintance with altering environment; therefore, the present investigation was carried out to study the endophytic microfloral dynamics across the B. rapa germplasm in context to their ability to produce chitinase and to characterize the screened microflora for functional and biochemical comportments in relevance to plant growth stimulation. A total of 200 colonies of bacterial endophytes were isolated from the roots of B. rapa across the J&K UT, comprising 66 locations. After morphological, ARDRA, and sequence analysis, eighty-one isolates were selected for the study, among the isolated microflora Pseudomonas sp. Bacillus sp. dominated. Likewise, class γ-proteobacteria dominated, followed by Firmicutes. The diversity studies have exposed changing fallouts on all the critical diversity indices, and while screening the isolated microflora for chitinase production, twenty-two strains pertaining to different genera produced chitinase. After carbon source supplementation to the chitinase production media, the average chitinase activity was significantly highest in glycerol supplementation. These 22 strains were further studied, and upon screening them for their fungistatic behavior against six fungal species, wide diversity was observed in this context. The antibiotic sensitivity pattern of the isolated strains against chloramphenicol, rifampicin, amikacin, erythromycin, and polymyxin-B showed that the strains were primarily sensitive to chloramphenicol and erythromycin. Among all the strains, only eleven produced indole acetic acid, ten were able to solubilize tricalcium phosphate and eight produced siderophores. The hydrocyanic acid and ammonia production was observed in seven strains each. Thus, the present investigation revealed that these strains could be used as potential plant growth promoters in sustainable agriculture systems besides putative biocontrol agents.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Dynamics, phylogeny and phyto-stimulating potential of chitinase synthesizing bacterial root endosymbiosiome of North Western Himalayan Brassica rapa L.

Padder

Rather

Bhat

et al. 2022

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“…The graded levels of K significantly influenced number of pods/plant to treatment where no potash was applied. (Table 2) Data indicated that among K rates, the highest number of pods (28.16) was recorded with (50 kg) followed by (25…”

Section: Number Of Pods/plantmentioning

confidence: 97%

“…Hence, there is need for enhancement of the production and productivity of black gram. Proper fertility management is necessary to ensure better crop production especially for increasing seed yield in pulses" [24,25]. Inclusion of K in nutrient management schedules of pulse crops is not common.…”

Section: Introductionmentioning

confidence: 99%

Potassium Management for Improving Mash Grain Yield in a Field Experiment at Regional Research Station, Gurdaspur

Verma¹,

Kaur

2022

IJPSS

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To improve production and quality of pulse crops, balanced use of production inputs is important to sustain soil fertility and to combat nutrient deficiency in particular. To understand the effect of potassium (K) fertilization on yield and yield attributes of mash bean/ black gram in a potassium deficient soil, a study was carried out for two consecutive years at the experimental farm of Punjab Agricultural University, Regional Research Station, Gurdaspur, India. Mash variety ‘Mash 114’ was tested in a randomized complete block design with three replications having different fertilizer treatments of potassium application rates Application of potassium fertilizer signiﬁcantly increased the grain yield to 1963 kg ha-1 whereas plots without K fertilization maintained an average grain yield of 1204 kg ha-1. Maximum grain and straw yield in black gram was obtained with potassium application at the rate of 50 kg K2O ha-1 followed by 25 kg K2O ha-1. The two treatments were at par with each other however, treatment 50kg K2O ha-1 was significantly superior to treatment 12.5 kg K2O ha-1, NP and control. Inclusion of potassium in fertilization schedule alongwith N and P significantly influenced plant height, number of pods per plant, and 100 seed weight (g) in comparison to NP and control treatment. Quadratic regression equation also explained the progressive increase in seed yield of mash bean with increasing levels of potassium.

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“…Yield losses are variable, but are significant in fields with low inputs especially under late sown conditions (Doyer, 1938;Mohiddin et al, 2021;Rather et al, 2022b). Nutrient stress is known to enhance the spot blotch severity (Abdul et al, 1973;Padder et al, 2015) which gets further disappointing under adverse environmental conditions (Goel et al, 2006;Dar et al, 2015;Gupta et al, 2017;Bano et al, 2018;Rather et al, 2022c). Therefore, studies were undertaken to work out the role of environment accomplished by different dates of sowing) and nutrient amendments on the occurrence and intensity of spot blotch and consequently their effect on seed quality in barley at Regional Research Station, Masodha (ANDUAT), Ayodhya.…”

Section: Introductionmentioning

confidence: 99%

Management of spot blotch of barley through different dates of sowing and chemical and organic amendments

Amir¹,

Srivastava²,

Kumar³

et al. 2023

EEC

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Spot blotch caused by Bipolaris sorokiniana is one of the most serious diseases of barley in tropical areas where barley and wheat are grown. A field experiment was conducted at Regional Research Station Masodha, ANDUA&T, Kumarganj, Ayodhya, Uttar Pradesh during Rabi season. To evaluate the effect of different dates of sowing and chemical and organic amendments on spot blotch and consequently on seed quality of barley. The experiment was conducted during the Rabi season 2016-17 under hotspot area of spot blotch. RD-2794 was sown in a split plot manner with two dates of sowing.The experiment was performed in split plot design with three replications comprising two different dates of sowing, i.e. mid- November (D1 ) and mid-December (D2 ) in the main plot and chemical and organic amendments viz., RDF (60N:30P:20K kg/ hectare) -T1 , FYM @ 5 t/h-T2 , T1 + Mulch@ 6 t/h-T3 , T1 + FYM @ 5t/hec + Mulch @ 6t/ hec.-T4 , T4 + 2 spray of zinc sulphate @ 0.5 %-T5 , T4 + 2 spray of KCl @0.5%-T6 and T5 + 2 spray of KCl @ 0.5 %-T7 in the sub plot. Results revealed that minimum disease severity (46.9%) with maximum disease control (39.98%) and per cent seed infection (5.5%) were recorded in D1 × T7 . The interpretation of data revealed that there was highly positive and significant correlation (r=0.95) between disease severity and per cent seed infection. The maximum 1000-seed weight (43.41g) and yield (38.67 q/ha) with maximum yield gain (57.25%) was also recorded in D1 × T7 . The same treatment combination was also useful in maximizing the seed quality in terms of seed viability (98%), Germination (97%), seedling length (27.30cm) and vigour index-I (2648.153) when the freshly harvested seeds were tested in seed testing laboratory. Spot blotch is a serious disease of barley spreads primarily through infected seeds and reduced the yield up to 30%. The disease can be minimized by sowing the crop timely i.e. mid-November with recommended dose of fertilizers + FYM @ 5 t/ha+ Mulch@ 6 t/ha+ 2 spray of zinc sulphate @ 0.5 % + 2 spray of KCl @ 0.5 % at flag leaf and post anthesis stage which improves the seed quality.

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Antifungal potential of Colchicum luteum and determination of colchicine content using HPLC for application as a fungicide

Cited by 15 publications

References 39 publications

Dynamics, phylogeny and phyto-stimulating potential of chitinase synthesizing bacterial root endosymbiosiome of North Western Himalayan Brassica rapa L.

Dynamics, phylogeny and phyto-stimulating potential of chitinase synthesizing bacterial root endosymbiosiome of North Western Himalayan Brassica rapa L.

Potassium Management for Improving Mash Grain Yield in a Field Experiment at Regional Research Station, Gurdaspur

Management of spot blotch of barley through different dates of sowing and chemical and organic amendments

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