scholarly journals Dendrološke značajke Arboretuma Trsteno

2019 ◽  
Vol 143 (3-4) ◽  
pp. 125-142
Author(s):  
Marilena Idžojtić ◽  
Igor Poljak ◽  
Maja Anastazija Kovačević ◽  
Ivan Šimić ◽  
Igor Anić

Arboretum Trsteno je povijesni ladanjski posjed s perivojima, starim maslinicima i prirodnom vegetacijom, kojim upravlja Hrvatska akademija znanosti i umjetnosti. Povijest ladanjske cjeline može se pratiti od 1494. godine, a Arboretum površine 28 ha osnovan je 1948. godine. Radi utvrđivanja sadašnjega bogatstva drvenastih svojti, biljke su determinirane tijekom 2017. i 2018. godine. Napravljena je dendrološka analiza te je učinjena usporedba sadašnjega bogatstva dendroflore u odnosu na literaturne podatke dostupne iz sredine i kraja prošloga, kao i početka ovoga stoljeća. U Arboretumu Trsteno sada raste 317 drvenastih svojti, od čega je 233 vrsta, 8 podvrsta, 2 varijeteta, 10 križanaca i 64 kultivara. Svojte pripadaju u 179 različitih rodova iz 82 porodice. Golosjemenjača je 19 svojti, a kritosjemenjača 298 svojti. Svojti autohtonih u Hrvatskoj je 84, odnosno 26 %, a među njima prevladavaju medite­ranske biljke. Od egzotičnih vrsta i podvrsta, odnosno onih koje rastu isključivo izvan europskoga kontinenta, najviše je azijskih vrsta (64), zatim slijede vrste s područja Amerike (45 vrsta), Afrike (14 vrsta) i Australije (6 vrsta). Jedinstvene ili vrlo rijetko prisutne svojte u Hrvatskoj su npr. Acacia cyclops A. Cunn. ex G. Don, A. karoo Hayne, Albizia amara (Roxb.) B. Boivin, Callitris preisii Miq., Casuarina cunninghamiana Miq., Persea indica (L.) Spreng., Retama sphaerocarpa Raf., Schinus weinmannifolius Engl. i Vitex negundo var. heterophylla (Franch.) Rehder. Od prvog popi­sa biljaka prije 65 godina do danas u Arboretum su unošene nove svojte. Ukupan broj svojti povećan je s 226 na 317. Tome je znantno pridonijelo obogaćanje zbirki pojedinih rodova, ali također i revizije prijašnjih determinacija koje su donijele na svjetlo brojne stare kultivare, kao npr. rodova Olea, Citrus, Aloe, Pelargonium i dr. Svojti koje su se od popisa 1953. godine do danas zadržale u Arboretumu je 148, što znači da je od današnjih 317 svojti nešto manje od pola bilo u Arboretumu i prije 65 godina. To je posljedica djelovanja niza čimbenika, uključujući klimu, uvjete uzgoja, požare, ali i bolesti i štetnike. Egzotične biljke toplih područja drugih kontinenata uglavnom su dobro prilagođene na stanišne uvjete u Arboretumu, međutim, povremeno stradaju od ekstremno niskih temperatura koje traju više dana. Arboretum Trsteno jedini je naš arboretum koji je pod upravom znanstvene institucije – Hrvatske akademije znanosti i umjetnosti te ispunjava zadatke postavljene pred povijesni arboretum u suvremenom svijetu.

Author(s):  
Mohd Faisal Khan ◽  
Poonam Arora ◽  
Mahaveer Dhobi

Background: Vitex negundo Linn. commonly known as five leave chase tree is an ethnobotanically important drug in traditional system of medicine. The plant is widely distributed in India, China and other Asian and American countries. Objective: The review aims at presenting comprehensive information with respect to ethnopharmacological rele-vance and recent findings on phytochemical and biological activities of Vitex negundo. Method: Literature was collected from various sources such as pubmed, scopus, science direct, and others. Results: Extracts and secondary metabolites of this plant, particularly those from roots and leaves, possess useful pharmacological activities such as anti-inflammatory, antitumor, antioxidant, antimicrobial, galactagogue, antigas-tric, antiflatulant, antiparasitic, analgesic, hepatoprotective and antihypertensive, some of which have been vali-dated scientifically. All parts of plant especially leave and roots contain a large number of bioactive phytoconstitu-ents including flavonoids, iridoids, lignans, volatile oil, terpenes, coumarins, phenolic and steroidal compounds which impart it multiple medicinal properties. Vitexin, isovitexin, viridifol, caffeic acid, chlorogenic acid and iso-chlorogenic acid are the main components. Conclusion: The review emphasises the medicinal importance of Vitex negundo and its bioactive constituents in traditional system of medicine.


2021 ◽  
pp. 1-9
Author(s):  
M. Manokari ◽  
S. Priyadharshini ◽  
Mahipal S. Shekhawat

Abstract Micropropagation techniques allow producing large numbers of clones of genetically identical plants. However, there is evidence of disorders in internal structures due to sophisticated in vitro conditions. Such variations are responsible for the mortality of plantlets in the field and cause huge loss to the tissue culture industry. Anatomical evaluation at different growth conditions allows for understanding structural repair of in vitro raised plantlets. Therefore, the present study was aimed to identify the structural changes that occurred in micropropagated plants of Vitex negundo under heterotrophic, photomixotrophic, and photoautotrophic conditions. To achieve this, structural variations were analyzed in the plantlets obtained from in vitro, greenhouse and field transferred stages using light microscopy. Underdeveloped dermal tissues, palisade cells, intercellular spaces, mechanical tissues, vascular bundles, and ground tissues were observed with the plants growing under in vitro conditions. The self-repairing of structural disorders and transitions in vegetative anatomy was observed during hardening under the greenhouse environment. Field transferred plantlets were characterized by well-developed internal anatomy. These findings showed that the micropropagated plantlets of V. negundo were well-adapted through a series of self-repairing the in vitro induced structural abnormalities at the subsequent stages of plant development.


2021 ◽  
pp. 101298
Author(s):  
Thi-Hoai-Thu Nguyen ◽  
Thi-Hong-Tuoi Do ◽  
Nguyen Tien Trung ◽  
Thi-Phuong Nguyen ◽  
Dang-Cam-Tu Phan ◽  
...  
Keyword(s):  

Molecules ◽  
2011 ◽  
Vol 16 (8) ◽  
pp. 6667-6676 ◽  
Author(s):  
Mohsen Zargar ◽  
Azizah Abdul Hamid ◽  
Fatima Abu Bakar ◽  
Mariana Nor Shamsudin ◽  
Kamyar Shameli ◽  
...  

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