Effects of brassinosteroid application on seed germination of Norway spruce, Scots pine, Douglas fir and English oak

Kuneš, I.; Baláš, Martin; Linda, Rostislav; Gallo, Josef; Nováková, Olga

doi:10.3832/ifor1578-009

Cited by 22 publications

(11 citation statements)

References 37 publications

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“…The results were again quite inconsistent. A slight positive effect was observed on Norway spruce seeds, while it was negative for Douglas fir (Kuneš et al 2016). The published results show that the effect of brassinosteroids is mostly apparent but is significantly different for individual species and application methods.…”

Section: Other Enhancing Substances (Non-fertilizers)mentioning

confidence: 89%

Quarter of a century of forest fertilization and liming research at the Department of Silviculture in Prague, Czech Republic

Gallo

Vacek

2021

Central European Forestry Journal

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Fertilization and liming began to be used in forestry at the beginning of the 20th century in order to increase growth, for improvement of health status or higher resistance to biotic and abiotic factors. The review summarizes results of 48 studies of forest fertilization, nutrition and liming published in scientific journals by authors of Department of Silviculture in Prague over the past more than 20 years. They deal mainly with monitoring of the effect of fertilization and liming applied during planting or shortly after planting of 18 tree species. Moreover, the results of fertilization in older stands are presented. Separate chapters deal with enhancing substrates (soil conditioners and phytohormones). All forest vegetation ranges are covered, from lowland forests to the subalpine belt of grass vegetation in 11 Natural Forest Areas. Forest fertilizing and liming proved beneficial according to most of the studies. The use of fertilizers can be detected in soils after decades. On the other hand, only in a minority of cases was fertilization reflected in the chemistry of the assimilation apparatus and other parts of the trees for a longer period. The main positive effect of fertilization and liming was increase of tree growth and foliation and decrease of mortality and yellowing symptoms. Inconsistent results were documented in some cases, especially for brassinosteroids and alginite compared to good results in slow release fertilizer done by spot-application. The type of product, concentration, time and method of application play an important role in the appropriate use of fertilization and liming.

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Section: Other Enhancing Substances (Non-fertilizers)mentioning

confidence: 89%

Quarter of a century of forest fertilization and liming research at the Department of Silviculture in Prague, Czech Republic

Gallo

Vacek

2021

Central European Forestry Journal

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“…В процесі розвитку генеративних органів та дозрівання насіння в несприятливих екологічних умовах у хвойних, як в природних [22,23], так і в інтродукованих, іноді спостерігаються аномалії, що негативно впливають на якість насіння або призводять до повної втрати їх життєздатності [8,9,26]. Це підтверджується літературними джерелами вітчизняних і зарубіжних авторів з питань репродуктивного розвитку ялин в умовах інтродукції [3,8,11,13] та їх розмноження в умовах in vitro [24,26].При цьому встановлено, що насіннєва продуктивність залежить від життєздатності пилку та впливу техногенних факторів.…”

Section: Sеed Productivity and Quality Of Picea Abies And P Pungens unclassified

“…Таке зниження маси насіння у ялин біля промислових підприємств та автошляхів, ймовірно, пов'язано із загальним ослабленням деревостану під впливом дії аерополютантів. В природних насадженнях маса насіння Р. abies складає 7,7 г [23], що на 11,6 % більше порівняно з рослинами ботанічного саду, тоді як у інтродукованих умовах дендрарію Алматинської області у Р. abies цей показник -4,0 г, що менше на 42,0 % відповідно [15]. Аналогічні результати маси насіння до наших досліджень для Р. abies та P. pungens наведені у роботі Kaliniewicz (2018).…”

Section: рис 1 картосхема розташування досліджених насаджень Pісеа unclassified

Sеed productivity and quality of Picea abies and P. pungens in the Kriviy Rih plantations

Нuseіnova¹

2018

vsllr

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Reproductive capability is considered as one of indicators of successful introduction; it helps to evaluate adaptation potential of plants, especially in techogenic conditions. The aim of our work is to research morphometric parameters of cones, profitability and seed quality of Рісеа аbies та P. pungens in the plantations with various levels of aerotechnogenic influence in conditions of an industrial city in the steppe zone of Ukraine. The objects of the studying were the cones of 30–40-year-old trees of P. аbies та P. pungens from eight different plantations situated along the whole city of Kryvyi Rih (126 km) and having various levels of technogenic pollution. We revealed that the maximal length of cone in two investigated species (108,4 and 88,7 mm respectively), width (28,6 and 24,7 mm); the highest seedling vigour (41,0 and 7,2 %), laboratory germination (54,2 and 20,6 %), seed mass (6,9 and 4,2 g), and length of germ (18,5 and 13,8 mm) are noted in the trees from Botanical Garden. The minimal values of all the same indices were ascertained for the trees growing near the metallurgical combine “ArcelorMittal Kryvyi Rih”: length of cones – 92,3 and 73,9 mm; width of cones – 26,2 and 22,4 mm; as well as the lowest seedling vigour (2,4 and 1,4 %); laboratory germination (5,0 and 2,0 %), seed mass (5,4 and 3,4 g), and length of germ (12,6 and 5,4 mm). The general seed quantity for a cone of P. аbies та P. pungens, in all the plantation types, varied from 203,9 to 217,2 seeds and from 198,6 to 204,3 ones respectively. The least part of fertile seeds (11,5–13,3 %), and the biggest part of sterile (56,5–58,7 %) and underdeveloped (29,8–30,1 %) ones were noted in the plants of P. pungens directly exposed to emissions of industrial enterprises; for the plants of P. abies the same indices were 20,2–22,5 %; 51,5–52,6 % та 26,0–27,2 % respectively. Therefore, increasing level of techogenic pollution by air pollutants, which is observed during some last years, oppresses the generative sphere of species of genus Рісеа in conditions of the steppe zone of Ukraine.

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“…Exogenous BRs have been applied by seed soaking and/or leaf spraying at concentrations in the range of 10 −6 to 10 −9 M over a great variety of plants [ 29 , 35 , 46 , 47 ]. However, just a few works have used synthetic BRs analogs [ 48 , 49 , 50 ]. Much effort has been dedicated to synthesizing these compounds, mainly by the extremely low quantity of BRs existing in plants and their extremely high cost, which make its use prohibitive in agriculture applications.…”

Section: Introductionmentioning

confidence: 99%

Exogenous Application of Brassinosteroid 24-Norcholane 22(S)-23-Dihydroxy Type Analogs to Enhance Water Deficit Stress Tolerance in Arabidopsis thaliana

Díaz

Espinoza

Carvajal

et al. 2021

IJMS

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Brassinosteroids (BRs) are plant hormones that play an essential role in plant development and have the ability to protect plants against various environmental stresses, such as low and high temperature, drought, heat, salinity, heavy metal toxicity, and pesticides. Mitigation of stress effects are produced through independent mechanisms or by interaction with other important phytohormones. However, there are few studies in which this property has been reported for BRs analogs. Thus, in this work, the enhancement of drought stress tolerance of A. thaliana was assessed for a series of 2-deoxybrassinosteroid analogs. In addition, the growth-promoting activity in the Rice Lamina Inclination Test (RLIT) was also evaluated. The results show that analog 1 exhibits similar growth activity as brassinolide (BL; used as positive control) in the RLIT bioassay. Interestingly, both compounds increase their activities by a factor of 1.2–1.5 when they are incorporated to polymer micelles formed by Pluronic F-127. On the other hand, tolerance to water deficit stress of Arabidopsis thaliana seedlings was evaluated by determining survival rate and dry weight of seedlings after the recovery period. In both cases, the effect of analog 1 is higher than that exhibited by BL. Additionally, the expression of a subset of drought stress marker genes was evaluated in presence and absence of exogenous applied BRs. Results obtained by qRT-PCR analysis, indicate that transcriptional changes of AtDREBD2A and AtNCED3 genes were more significant in A. thaliana treated with analog 1 in homogeneous solution than in that treated with BL. These changes suggest the activation of alternative pathway in response to water stress deficit. Thus, exogenous application of BRs synthetic analogs could be a potential tool for improvement of crop production under stress conditions.

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Effects of brassinosteroid application on seed germination of Norway spruce, Scots pine, Douglas fir and English oak

Cited by 22 publications

References 37 publications

Quarter of a century of forest fertilization and liming research at the Department of Silviculture in Prague, Czech Republic

Quarter of a century of forest fertilization and liming research at the Department of Silviculture in Prague, Czech Republic

Sеed productivity and quality of Picea abies and P. pungens in the Kriviy Rih plantations

Exogenous Application of Brassinosteroid 24-Norcholane 22(S)-23-Dihydroxy Type Analogs to Enhance Water Deficit Stress Tolerance in Arabidopsis thaliana

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