Decumbenones A–C from marine fungus &lt;i&gt;Aspergillus sulphureus&lt;/i&gt; as stimulators of the initial stages of development of agricultural plants

М М Анисимов ,Natalya A Kraskovskaja,Shamil Sh Afiyatullov,Dmitry L Aminin,Е Л Чайкина ,A G Klykov ,Olesya I Zhuravleva

doi:10.4236/as.2012.38123

Decumbenones A–C from marine fungus <i>Aspergillus sulphureus</i> as stimulators of the initial stages of development of agricultural plants

М М Анисимов , Natalya A Kraskovskaja + Show 5 more

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https://doi.org/10.4236/as.2012.38123

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Abstract

The effect of decumbenones A (1), B (2) and C (3) from the marine-derived strain of the fungus Aspergillus sulphureus on the growth of seedling roots of buckwheat, wheat, barley and corn at the concentration range 10﹣5 - 10﹣18 M was studied. It was shown that decumbenone B had a stimulatory effect on the growth of seedling roots of buckwheat, decumbenone A—on the growth of seedling roots of spring soft wheat, decumbenone C—on the growth of seedling roots of spring barley, decumbenone A, B and C —on the growth of seedling roots of corn. The stimulatory effect for some substances was shown at ultra-low concentrations 10﹣12 - 10﹣18 M. It is possible to recommend decumbenones A, B and C for studying in field conditions as growth factors of buckwheat, wheat, barley and corn.

Highlights

Researches of last years show, that marine fungi are promising sources of new structural and biologically active secondary metabolites [1,2,3,4,5]
As a part of our previous search for secondary metabolites from marine fungi we have revealed that diterpene glycosides viresсenosides A, B, G and Q, isolated from marine fungus Acremonium striatisporum, stimulate the growth of seedling roots of maize
It was shown that the alkaloids isolated from marine fungus Aspergillus fumigatus had a stimulatory effect on the growth of seedling roots of maize [7] and buckwheat [8]

Summary

Introduction

Researches of last years show, that marine fungi are promising sources of new structural and biologically active secondary metabolites [1,2,3,4,5]. As a part of our previous search for secondary metabolites from marine fungi we have revealed that diterpene glycosides viresсenosides A, B, G and Q, isolated from marine fungus Acremonium striatisporum, stimulate the growth of seedling roots of maize. It was shown that the alkaloids isolated from marine fungus Aspergillus fumigatus had a stimulatory effect on the growth of seedling roots of maize [7] and buckwheat [8]. A new spirocyclic diketopiperazine alkaloid spirotriprostatin F isolated from a marine fungus Aspergillus fumigatus at low and ultra-low doses (10−6 - 10−17 M) stimulated the growth of seedling roots of soybean, buckwheat and maize [9]. In our ongoing search for secondary metabolites from marine fungal isolates we have investigated the fungus Aspergillus sulphureus KMM 4640, obtained from the sediment of the Sakhalin Bay, Okhotsk Sea, Russia. Decumbenone C shows potent activity against SK-MEL-5 human melanoma cells [12]

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