Molecular Technologies in Serbian Lowland Forestry under Climate Changes - Possibilities and Perspectives

Background and Purpose: Vojvodina province, the northern part of the Republic of Serbia, is predominantly lowland agricultural region with over 75% of arable land which in previous years, has been highly impacted by drought. The annual precipitation is lower than 700 mm and it is the limit for the growth and development of natural forest vegetation. Unfortunately, the atmospheric precipitation is still a major source of water for plant biodiversity. Taking these facts into account, it is highly recommended to primarily use the xerothermic tree species, which have a well-developed root system for “classical” afforestation. Some species from Salicaceae and Fagaceae like poplars, willows, oaks and beeches are surely the best option for afforestation in temperate zones strongly influenced by drought. Conclusions: In order to develop stress-based genomic information in Populus and the rest of woody plant species from Vojvodina, an integrated genetic research needs to be done. The aim of this particular paper is to analyse and summarize data regarding stress-based biotechnology perspectives in Vojvodina and to give recommendations for future forest tree breeding. Drought as a strong negative ecological factor must be carefully considered. In order to achieve sustainability, new forest management plans must consider wide approaches, from molecular to ecosystem level

Future of the Main Important Forest Tree Species in Serbia from the Climate Change Perspective

Background and Purpose: Climate change is possibly the biggest 21st century challenge for the European forestry. Serbia is also under pressure, since the regions of South Europe and Mediterranean are expected to suffer the most. Main purpose of this study was to predict how distribution of several tree species in Serbia may change in the future. Materials and Methods: Our study integrates climate change scenarios for the region of Serbia together with the current distribution of forest tree species. Evaluation was performed using forest aridity index which takes into account mean temperatures and sums of precipitation of the critical months during the growing season. Distribution data of the nine most abundant tree species in Serbia (European beech, Turkey oak, Sessile oak, Hungarian oak, Pedunculate oak, Norway spruce, Silver fir, Black and Scots pine) were taken from the National Forest Inventory. Results: Significant change of bioclimatic niches is expected for the majority of the studied tree species. The most endangered will be Pedunculate oak due to the extreme change of its habitats, while drought prone species (like pines and Hungarian oak) will be less endangered. Sessile oak, Turkey oak, Silver fir, Norway spruce and European beech will be out of their 20th century bioclimatic niches before the end of 21st century according to A2 scenario. Conclusion: Our results suggest that some of the most important tree species in Serbia (Sessile oak, Turkey oak, Silver fir, Norway spruce and European beech) will be endangered by the end of 21st century. General adaption options and specific measurements for forestry sector have to be made for the region of southeast Europe due to the expected extreme change in climate

Molekularni mehanzimi odgovora drvenastih vrsta biljaka na abiotički stres.

Sve učestalije i intenzivnije promene faktora spoljašnje sredine deluju na biljke kao stres. Suočene sa ovim promenama biljke su razvile mehanizme tolerancije i adaptacije, koji im omogućavaju opstanak. Ovi mehanizmi funkcionišu na morfološkom, fiziološkom, biohemijskom i molekularnom nivou, međusobno su povezani, regulisani i usklađeni u integrisani sistem odgovora na promene u životnoj sredini. Mnogi ključni regulatorni i funkcionalni molekuli koji učestvuju u odgovoru na abiotički stres su identifikovani i time je otvorena mogućnost primene novih strategija u upravljanju stresom. Tema ovog rada su molekularni i biohemijski mehanizmi odgovora drvenastih vrsta biljaka na različite tipove abiotičkog stresa, sa posebnim osvrtom na topole

Hemijska analiza površinskog voska sa lišća klonova topola iz Srbije

The leaf cuticular waxes of 3 poplar clones (Populus euramericana-Pannonia (M1), and Populus deltoides PE 19/66 and B229 (Bora)) were characterized by gas chromatography-mass spectrometry method. Poplar clones grown under identical environmental conditions showed almost identical chemical content of organic compounds within analyzed leaf cuticular wax. The dominant compound was nonacosane, with range from 72,61% ± 0,02 quantified in Pannonia clone to 78,40% ± 0,35 in B229 clone, in total cuticular wax content. Other identified compounds were hexacosane, untriacontane, octacosane, tetradecanal and triacontane; the last, triacontane, was present in very small percentage in wax content, around 1% in all three clones.Površinski voskovi sa lišća od 3 klona topola (Populus euramericana cl. Pannonia (M1) i Populus deltoides cl. PE 19/66 i cl. B229 (Bora)) su analizirani metodom gasnomasene hromatografije. Klonovi topola su uzgajani pod istim uslovima spoljašnje sredine i pokazali gotovo identičan hemijski sastav u okviru analiziranog površinskog voska sa lišća. Dominantno jedinjenje je nonakozan, sa opsegom od 72,61 % ± 0,02 u klonu Pannonia do 78,40 % ± 0,35 u B229 klonu, u odnosu na ukupni hemijski sastav površinskog voska. Druga identifikovana jedinjenja su heksadekan, hentriakontan, oktadekan, tetradekanal i triakontan i poslednji, triakontan je bio prisutan u veoma malom procentu u ukupnom sadržaju površinskog voska, oko 1 % u sva tri klona

Hemijska analiza površinskog voska sa lišća klonova topola iz Srbije

The leaf cuticular waxes of 3 poplar clones (Populus euramericana-Pannonia (M1), and Populus deltoides PE 19/66 and B229 (Bora)) were characterized by gas chromatography-mass spectrometry method. Poplar clones grown under identical environmental conditions showed almost identical chemical content of organic compounds within analyzed leaf cuticular wax. The dominant compound was nonacosane, with range from 72,61% ± 0,02 quantified in Pannonia clone to 78,40% ± 0,35 in B229 clone, in total cuticular wax content. Other identified compounds were hexacosane, untriacontane, octacosane, tetradecanal and triacontane; the last, triacontane, was present in very small percentage in wax content, around 1% in all three clones.Površinski voskovi sa lišća od 3 klona topola (Populus euramericana cl. Pannonia (M1) i Populus deltoides cl. PE 19/66 i cl. B229 (Bora)) su analizirani metodom gasnomasene hromatografije. Klonovi topola su uzgajani pod istim uslovima spoljašnje sredine i pokazali gotovo identičan hemijski sastav u okviru analiziranog površinskog voska sa lišća. Dominantno jedinjenje je nonakozan, sa opsegom od 72,61 % ± 0,02 u klonu Pannonia do 78,40 % ± 0,35 u B229 klonu, u odnosu na ukupni hemijski sastav površinskog voska. Druga identifikovana jedinjenja su heksadekan, hentriakontan, oktadekan, tetradekanal i triakontan i poslednji, triakontan je bio prisutan u veoma malom procentu u ukupnom sadržaju površinskog voska, oko 1 % u sva tri klona

Regulatory Framework for Conservation and Sustainable Utilization of Forest Genetic Resources in Serbia

The aim of this chapter is an overall review and analysis of the most important national regulative frameworks related to conservation and sustainable utilization of forest genetic resources in Serbia. A number of legally-binding and non-binding documents (strategies, laws and programs), which have an effect on the conservation and sustainable utilization of forest genetic resources, were adopted after the 2000s in Serbia. This issue is mainly the subject of strategies, laws and programs from the fields of forestry, sustainable development, environmental and nature protection. It could be stated that there is no adopted legally-binding legislation which directly relates to the FGR conservation in Serbia