scholarly journals Influence of the Metabolites of the Marine Algicolous Fungus Penicillium sp. on Seedling Root Growth of Agricultural Plants

2016 ◽  
Vol 11 (9) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Mikhail M. Anisimov ◽  
Elena L. Chaikina ◽  
Olga F. Smetanina ◽  
Anton N. Yurchenko

N-Methylpretrichodermamide B (I), pretrichodermamide C (II), quinolactacide (III) and 8-methoxy-3,5-dimethyl-3,4-dihydro-1H-isochromen-6-ol (IV), isolated from the marine fungus Penicillium sp., were examined for their ability to stimulate growth of seedling roots of buckwheat ( Fagopyrum esculentum Moench), wheat ( Triticum aestivum L.), soy { Glycine max (L.) Merr.}, and barley ( Hordeum vulgare). It was shown that the stimulatory effects depend on the chemical structure of the compounds and on the plant species. Compounds I and III improved the rate of growth of seedling roots of buckwheat (1) and wheat (2), compound II stimulated growth of buckwheat roots (1), and compound IV improved growth of seedling roots of wheat (2) and soy (3). These compounds can be recommended for field study as plant growth stimulators.

2017 ◽  
Vol 12 (6) ◽  
pp. 1934578X1701200
Author(s):  
Elena L. Chaikina ◽  
Maria P. Sobolevskaya ◽  
Shamil Sh. Afiyatullov ◽  
Dmitry L. Aminin ◽  
Mikhail M. Anisimov

The pallidopenilline A (I), 1-acetylpallidopenilline A (II), 1-deacetylpallidopenilline B (III) and pallidopenilline C (IV) isolated from marine fungus Penicillium thomi Maire KMM 467 5 were examined for their ability to stimulate growth of seedling roots of buckwheat ( Fagopyrum esculentum Moench), soy { Glycine max (L.) Merr.}, barley ( Hordeum vulgare) and wheat ( Triticum aestivum L.). The stimulatory effects depend on the chemical structure of the compounds and on the plant species. Compound I was efficient for growth of seedling roots of soy, barley and wheat. Compound II and III were efficient for growth of seedling roots of soy and barley. Compound IV was efficient for growth of seedling roots of buckwheat. These compounds can be recommended for field study as plant growth stimulators.


2017 ◽  
Vol 12 (9) ◽  
pp. 1934578X1701200
Author(s):  
Natalia K. Utkina ◽  
Elena L. Chaikina ◽  
Mikhail M. Anisimov

The effect of spongean alkaloids aaptamine (1), isoaaptamine (2), 9-demethylaaptamine (3), aaptanone (4), N-demethylaaptanone (5), and semisynthetic 4- N-methylaaptanone (6) was studied on the growth of seedlings roots of soy { Glycine max (L.) Merr.}, maize ( Zea mays L.), wheat ( Triticum aestivum L.), buckwheat ( Fagopyrum esculentum Moench), and barley ( Hordeum vulgare L.). It was shown that a stimulatory effect depends on the chemical structure of the compounds and species of crop plants. The structural motif of aaptamines 1–3 is essential for a stimulating activity on the growth of seedling roots of soy, maize, and wheat. The oxygenated 1,6-naphthyridine core of aaptanones 5 and 6 is important for their growth stimulating activity on barley roots.


2014 ◽  
Vol 9 (4) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Mikhail M. Anisimov ◽  
Elena L. Chaikina ◽  
Natalia K Utkina

Damirone A (1), damirone B (2), makaluvamine G (3), debromohymenialdisine (4), and dibromoagelaspongin (5) were examined for their ability to stimulate growth of seedling roots of barley (Hordeum vulgare L.), buckwheat (Fagopyrum esculentum Moench), corn (Zea mays L.), soy {Glycine max (L.) Merr.}, and wheat (Triticum aestivum L.). It was shown that the stimulatory effects depend on the chemical structure of the alkaloids and on the plant species. Compounds 1, 3, and 4 are efficient for growth of seedling roots of barley, compounds 2-5, at different concentrations, stimulate growth of buckwheat roots, and compound 5 stimulates growth of wheat roots. These compounds can be recommended for field study as plant growth stimulators.


2014 ◽  
Vol 9 (6) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Mikhail M. Anisimov ◽  
Elena L. Chaikina ◽  
Olga F. Smetanina ◽  
Shamil Sh. Afiyatullov

Oxirapentyn A (1), oxirapentyn B (2), and oxirapentyn E (3) were examined for their ability to stimulate growth of seedling roots of barley ( Hordeum vulgare L.), buckwheat ( Fagopyrum esculentum Moench), corn ( Zea mays L.), soy { Glycine max (L.) Merr.}, and wheat ( Triticum aestivum L.). It was shown that the stimulatory effects depend on the chemical structure of the oxirapentyns and on the plant species. Compounds 1, and 2 are efficient for growth of seedling roots of barley, and wheat, whereas compound 3, at different concentrations, stimulates growth of seedling roots of maize, soy, and wheat. These compounds can be recommended for field study as plant growth stimulators.


2016 ◽  
Vol 11 (1) ◽  
pp. 1934578X1601100
Author(s):  
Elena L. Chaikina ◽  
Natalia K. Utkina ◽  
Mikhail M. Anisimov

The impact of the merosesquiterpenoids avarol (1), avarone (2), 18-methylaminoavarone (3), melemeleone A (4), isospongiaquinone (5), ilimaquinone (6), and smenoquinone (7), isolated from marine sponges of the Dictyoceratida order, was studied on the root growth of seedlings of buckwheat ( Fagopyrumesculentum Moench), wheat ( Triticumaestivum L.), soy ( Glycine max (L.) Merr.), and barley ( Hordeumvulgare L.). Compounds 2 and 6 were effective for the root growth of wheat seedlings, compound 3 stimulated the root growth of seedlings of buckwheat and soy, compound 4 affected the roots of barley seedlings, and compound 5 stimulated the root growth of seedlings of buckwheat and barley. Compounds 1 and 7 showed no activity on the root growth of the seedlings of any of the studied plants. The stimulatory effect depends on the chemical structure of the compounds and the type of crop plant.


Author(s):  
A. G. Klykov ◽  
M. M. Anisimov ◽  
E. L. Chaikina ◽  
N. M. Shevchenko ◽  
N. S. Parskaya

Marine organisms are a rich resource of pharmaceutical active compounds which have a wide range of biological activity, including anticoagulant action, immunomodulating action, anti-tumor activity, antibacterial, antifungal and antiviral, anti-inflammatory, antioxidant, lipid-corrective activity etc. Antivir, Laminaran and Fucoidan derived from Laminaria cichorioides were tested in field conditions, as stimulants of growth and development of barley (Hordeum vulgare L.), wheat (Triticum aestivum L.) and buckwheat (Fagopyrum esculentum Moench). Research shows that stimulating effect depends on chemical structure of polysaccharides and on plant species. Antivir, Laminaran and Fucoidan at different concentrations stimulate growth, productivity and morphological traits (plant height, ear length, productive bushiness and others) of barley, wheat and buckwheat. Carbohydrate containing biopolymers derived from the sea algae effect differently upon rutin content in seeds and stems of buckwheat.


1998 ◽  
Vol 22 (2) ◽  
pp. 311-317 ◽  
Author(s):  
I. F. Silva ◽  
J. Mielniczuk

Em um Latossolo Roxo de Santo Ângelo (RS), e em um Podzólico Vermelho-Escuro de Eldorado do Sul (RS), ambos com textura argilosa, submetidos o primeiro à exploração com cultivo convencional de trigo (Triticum aestivum L.) e soja (Glycine max L.) e sob setária (Setaria anceps L.), e o segundo à exploração com capim-pangola (Digitaria decumbens L.), siratro (Macroptilium atropurpureum L.), plantio direto com aveia (Avena bizantina L.)/milho (Zea mays L.) e área sem vegetação, foi realizado o presente trabalho durante a safra de verão (1990/1991), com o objetivo de avaliar a estabilidade e a agregação do solo sob diferentes sistemas de cultivo. Constatou-se, nessa avaliação, que as gramíneas perenes por meio do seu sistema radicular tiveram grande efeito na agregação e estabilidade dos agregados do solo e que os teores de carbono orgânico, de ferro e alumínio-oxalato, argila e grau de dispersão tiveram também efeitos na agregação do solo, porém insuficientes para explicar as variações entre o diâmetro médio ponderado dos agregados sob os diferentes sistemas de cultivo.


2012 ◽  
Vol 03 (08) ◽  
pp. 1019-1022 ◽  
Author(s):  
Mikhail M. Anisimov ◽  
Elena L. Chaikina ◽  
Shamil Sh. Afiyatullov ◽  
Olesya I. Zhuravleva ◽  
Alekxey G. Klykov ◽  
...  

2019 ◽  
Vol 49 (1) ◽  
pp. 132-140 ◽  
Author(s):  
Taynara Possebom ◽  
Tiago Lucini ◽  
Antônio Ricardo Panizzi

Abstract Laboratory studies were conducted with Dichelops furcatus (F.), Euschistus heros (F.), and Nezara viridula (L.) (Heteroptera: Pentatomidae) aiming to evaluate nymph and adult biology and adult preference for immature reproductive structures of the cultivated plants, soybean, Glycine max (L.) Merrill (Fabaceae), wheat, Triticum aestivum L. (Poaceae), and canola, Brassica napus L. var. oleifera (Brassicaceae). Considering the survivorship for D. furcatus nymphs, it was greater on soybean and wheat, for E. heros nymphs it was greater on soybean compared to canola and wheat, and for N. viridula nymphs the survivorship was greater on soybean and canola. Dichelops furcatus nymphs developed faster on soybean and wheat, and E. heros and N. viridula nymphs developed faster on soybean and canola. Body weight at adult emergency for D. furcatus was greater on soybean and wheat, and for E. heros and N. viridula, it was greater on soybean. Adult survivorship and longevity were similar on soybean/wheat/canola for D. furcatus and N. viridula, and greater on soybean for E. heros. Reproduction and weight gain of adults were greater on soybean and wheat for D. furcatus, and on soybean for E. heros; N. viridula reproduced only on soybean and tended to gain greater body weight in this food source. As expected, soybean considering its superior nutritional quality was, in general, the best food. These laboratory studies coupled with field observations allow to conclude that the sequence of soybean/wheat/canola crops in the area studied forms a ‘green bridge’ that favor stink bug populations abundance in southern Brazilian neotropics.


1996 ◽  
Vol 44 (4) ◽  
pp. 499 ◽  
Author(s):  
S Seah ◽  
K Sivasithamparam ◽  
DW Turner

The effect of salicylic acid (SA) applied as foliar dip, foliar wipe, root drench or pre-germination soak on the susceptibility of wheat (Triticum aestivum L.) seedlings to Gaeumannomyces graminis (Sacc.) Arx & Olivier var. tritici Walker (take-all fungus, Ggt) was studied. It was hypothesised that an increase in SA concentration applied using these methods would increase the resistance in wheat seedling roots against Ggt. Leaves (by foliar wipe and foliar dip) and roots (by root drench) of 1-2-week-old wheat seedlings grown in Lancelin sand, were treated with 0, 0.1 or 1 mM SA, and treatments of 0, 0.1 or 0.5 mM SA were applied in a pre-germination soak method. Ggt infection reduced (P Ͱ4 0.05) chlorophyll content and concentration and root length (P Ͱ4 0.10). Experiments that were conducted suggested that the SA treatments failed to induce a resistance response because they did not stimulate phenylalanine ammonia-lyase and peroxidase activities in the wheat seedling roots. Therefore, SA applied using these methods was not effective in reducing the susceptibility of wheat seedlings to Ggt. The chemical or biological induction of resistance in plant roots and its applicability as a root disease control strategy requires further clarification.


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