scholarly journals Piper nigrum, Piper betle and Gnetum gnemon- Natural Food Sourcewith Anti-Quorum Sensing Properties

Sensors ◽  
2013 ◽  
Vol 13 (3) ◽  
pp. 3975-3985 ◽  
Author(s):  
Li Tan ◽  
Wai-Fong Yin ◽  
Kok-Gan Chan
2021 ◽  
Vol 1 (1) ◽  
pp. 1-11
Author(s):  
Paul Sukra ◽  
Indriyanto Indriyanto ◽  
Ceng Asmarahman

Wan Abdul Rachman Forest Park (Tahura WAR) is an area to maintain nutrient cycling and a center for preservation of biodiversity in Lampung Province, one part of its management is a collection block that functions t            o conserve plants, including lianas. Therefore, this study aims to determine the type of liana, the type of support for the liana and the form of association between the liana plant and its supports. The research was conducted with a systematic double plot survey method with a sampling intensity of 2%. The data obtained were analyzed the level of association using the Ochiai Index (OI). The results showed that there were 5 types of lianas in the collection block, namely Piper nigrum, Piper betle, Vanilla planifolia, Passiflora edulis, and Mikania micrantha. Furthermore, 15 types of lianas were found, namely, Ceiba petandra, Theobroma cacao, Durio zibethinus, Hevea brasiliensis, Gnetum gnemon, Persea americana, Pithecellobium lobatum, Gliricidia sepium, Dalbergia latifolia, Naphelium lappiosa, Aleurites moluccana, Cocos speciosa, and nucifera and Intsia palembanica. The real associations in the research location between lianas and their supporting plants were durian and pepper, durian with betel, rubber with sembung, tangkil and sembung, jengkol with pepper, and sonokeling with passion fruit.


Author(s):  
Ebru Önem ◽  
Hasan Cumhur Sarısu ◽  
Ayşe Gül Özaydın ◽  
Muhammed Tilahun Muhammed ◽  
Ayşe Ak

2003 ◽  
Vol 28 (3) ◽  
pp. 229-235 ◽  
Author(s):  
Maria de Lourdes R. Duarte ◽  
Simon A. Archer

Fusarium solani f. sp. piperis (teleomorph: Nectria haematococca f. sp. piperis), causal agent of root rot and stem blight on black pepper (Piper nigrum), produces secondary metabolites with toxigenic properties, capable of inducing vein discoloration in detached leaves and wilting in transpiring microcuttings. Production of F. solani f. sp. piperis (Fsp) toxic metabolites reached a peak after 25 days of static incubation on potato sucrose broth at 25 ºC under illumination. Changes in the pH of the culture filtrate did not alter the effect of toxic metabolites. However, when the pH was changed before the medium had been autoclaved, a more intense biological response was observed, with an optimum at pH 6.0. Isolates that produced red pigments in liquid cultures were more efficient in producing biologically active culture filtrates than those which produced pink coloured or clear filtrates suggesting that these pigments could be related to toxigenic activity. Detached leaves of seven black pepper cultivars and Piper betle showed symptoms of vein discoloration after immersion in autoclaved and non-autoclaved Fsp culture filtrates indicating the thermostable nature of these toxic metabolites.


3 Biotech ◽  
2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Siraj Datta ◽  
Debanjan Jana ◽  
Tilak Raj Maity ◽  
Aveek Samanta ◽  
Rajarshi Banerjee

2016 ◽  
Vol 193 ◽  
pp. 592-603 ◽  
Author(s):  
Ramanathan Srinivasan ◽  
Kannan Rama Devi ◽  
Arunachalam Kannappan ◽  
Shunmugiah Karutha Pandian ◽  
Arumugam Veera Ravi

Author(s):  
K. Abirami ◽  
V. Baskaran ◽  
P. Simhachalam

Inter-simple sequence repeat (ISSR) analysis was used to study the genetic diversity of Piper spp. with its relative genus Peperomia pellucida. Among the 38 ISSR primers used, 10 primers generated 1083 bands, of which seven (80.8%) were polymorphic. The maximum polymorphism were obtained from the primers UBC 881, UBC 889, UBC 848 and UBC 830. Cluster analysis grouped the species studied into two major clusters. One cluster comprised the different accessions of Piper nigrum and is distinct from the other species of Piperaceae. The other cluster grouped the four species of Piperaceae namely Piper longum, Piper sarmentosum, Piper betle and Peperomia pellucida. The variability studies also revealed that the ISSR marker could group the accessions within the same species based on their similar geographical origin. Assessment of genetic diversity among the different species of the family Piperaceae through ISSR marker would help in rapid identification of polymorphism, assist in future germplasm collection, conservation and domestication programmes. 


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