Antineoplastic agents. 168. Isolation and structure of axinohydantoin

1990 ◽  
Vol 68 (9) ◽  
pp. 1621-1624 ◽  
Author(s):  
George R. Pettit ◽  
Cherry L. Herald ◽  
John E. Leet ◽  
Rajesh Gupta ◽  
Daniel E. Schaufelberger ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
Antineoplastic Agents ◽  
New Guinea ◽  
X Ray ◽  
Imidazole Derivatives ◽  
Eastern State ◽  
Present Experience ◽  
Caroline Islands

Western (Palau) and Eastern (State of Truk) Caroline Islands and Papua New Guinea sponges of the genera Axinella and Hymeniacidon were found to contain the cytostatic (PS ED50 2.5 and 2.0 (μg/mL) and antineoplastic (PS T/C 143 at 3.6 mg/kg and T/C 138 at 3.6 mg/kg) pyrrologuanidines 1a and 1b. The related hydantoin 2, designated axinohydantoin, was also isolated from an Axinella sp. and its structure was assigned by X-ray crystallographic techniques. Present experience with sponges in the Axinella and Hymeniacidon genera suggests that the previously known hymenialdisine (1b) and analogous imidazole derivatives may be widely distributed among these and related orange colored Porifera. Keywords: axinohydantoin, hymenialdisine, Axinella, Hymeniacidon, cystostatic.

Antineoplastic agents. Part 395.1 Isolation and structure of agelagalastatin from the Papua New Guinea marine sponge Agelas sp.

1999 ◽  
pp. 915-916 ◽  
Author(s):  
George R. Pettit ◽  
Jun-ping Xu ◽  
Diane E. Gingrich ◽  
Michael D. Williams ◽  
Dennis L. Doubek ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
Marine Sponge ◽  
Antineoplastic Agents ◽  
New Guinea

A preliminary survey of nickel, manganese and zinc (hyper)accumulation in the flora of Papua New Guinea from herbarium X-ray fluorescence scanning

Chemoecology ◽  
2020 ◽  
Vol 30 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Christina Do ◽  
Farida Abubakari ◽  
Amelia Corzo Remigio ◽  
Gillian K. Brown ◽  
Lachlan W. Casey ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Preliminary Survey ◽  
X Ray ◽  
Nickel Manganese

Observation of Cell Inclusions in Papua New Guinea Woods by Means of Sem/Edxa

IAWA Journal ◽  
1983 ◽  
Vol 4 (4) ◽  
pp. 219-236 ◽  
Author(s):  
Takeshi Furuno ◽  
Keyword(s):  
Papua New Guinea ◽  
Wood Species ◽  
New Guinea ◽  
Analytical Tool ◽  
Energy Dispersive ◽  
Anatomical Feature ◽  
X Ray ◽  
Mineral Inclusions ◽  
Tropical Woods ◽  
Silica Crystals

The presence of silica, crystals and other mineral inclusions found in the cell cavities of many wood species, especially in tropical woods, frequently appears as a characteristic anatomical feature and in many cases is of diagnostie value. For detecting these inclusions and identifying their elements, the SEM and EDXA (energy dispersive X-ray analysis) combination is now considered to be a very useful analytical tool.

ChemInform Abstract: Antineoplastic Agents. Part 395. Isolation and Structure of Agelagalastatin from the Papua New Guinea Marine Sponge Agelas sp.

ChemInform ◽  
2010 ◽  
Vol 30 (37) ◽  
pp. no-no
Author(s):  
George R. Pettit ◽  
Jun-ping Xu ◽  
Diane E. Gingrich ◽  
Michael D. Williams ◽  
Dennis L. Doubek ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
Marine Sponge ◽  
Antineoplastic Agents ◽  
New Guinea

The coral bugs, genus Halovelia Bergroth (Hemiptera, Veliidae). I. History, classification, and taxonomy of species except the H. malaya-group

1989 ◽  
Vol 20 (1) ◽  
pp. 75-120 ◽  
Author(s):  
N. Møller Andersen
Keyword(s):  
Papua New Guinea ◽  
Red Sea ◽  
Type Species ◽  
Solomon Islands ◽  
Historical Review ◽  
New Guinea ◽  
Northern Territory ◽  
Western Pacific Ocean ◽  
Fiji Islands ◽  
Caroline Islands

AbstractMarine bugs of the genus Halovelia Bergroth inhabit intertidal coral reefs and rocky coasts along the continents and larger islands bordering the Red Sea, Indian Ocean, and western Pacific Ocean as well as on island groups and atolls in these areas. A historical review of the study of the genus is presented and different views upon its classification discussed. The genus Halovelia is redescribed together with its type species, H. maritima Bergroth, and four other previously known species. Fifteen new species are described: H. carolinensis sp.n. (Caroline Islands), H. halophila sp.n. (Sumbawa, Sabah), H. corallia sp.n. (Papua New Guinea, Australia: Queensland), H. esakii sp.n. (Solomon Islands, Irian New Guinea, Moluccas, Sulawesi, Sumbawa, Palau Islands, Philippines), H. polhemi sp.n. (Australia: Northern Territory), H. solomon sp.n. (Solomon Islands), H. novoguinensis sp.n. (Papua New Guinea), H. fosteri sp.n. (Fiji Islands), H. tongaensis sp.n. (Tonga Islands), H. heron sp.n. (Australia: S. Queensland), H. fijiensis sp.n. (Fiji Islands), H. inflexa sp.n. (Sudan, Red Sea), H. annemariae sp.n. (Solomon Islands, Papua New Guinea), H. lannae sp.n. (Java, Singapore, West Malaysia, Sabah, Philippines), and H. wallacei sp.n. (Sulawesi, Sumbawa). Two names are synonymized: H. marianarum Usinger syn.n. (= H. bergrothi Esaki) and H. danae Herring syn.n. (= H. bergrothi Esaki). The following species are removed from the genus Halovelia: H. papuensis Esaki, H. loyaltiensis China, and H. (Colpovelia) angulana Polhemus. A key to the species is included. The taxonomy of the H. malaya-group will be presented in Part II of this work together with the cladistics, ecology, biology, and biogeography of the genus.

Elsinoe batatas. [Descriptions of Fungi and Bacteria].

1992 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
Hong Kong ◽  
Papua New Guinea ◽  
Sweet Potato ◽  
Geographical Distribution ◽  
Ipomoea Batatas ◽  
New Caledonia ◽  
New Guinea ◽  
Cook Islands ◽  
Caroline Islands ◽  
Sabah And Sarawak

Abstract A description is provided for Elsinoe batatas. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Ipomoea batatas. DISEASE: Leaf and stem scab of sweet potato. GEOGRAPHICAL DISTRIBUTION: Australia, Brazil, Brunei, Caroline Islands, China, Cook Islands, Fiji, Guadalcanal ?, Guam, Hong Kong, Japan. Malaysa (including Sabah and Sarawak), New Caledonia, Niue, Papua New Guinea. Taiwan, Tonga, Vanuata. TRANSMISSION: By waterborne spores and through cuttings.

Antineoplastic agents. 251. Isolation and structure of stylostatin 1 from the Papua New Guinea marine sponge Stylotella aurantium

1992 ◽  
Vol 57 (26) ◽  
pp. 7217-7220 ◽  
Author(s):  
George R. Pettit ◽  
Jayaram K. Srirangam ◽  
Delbert L. Herald ◽  
Karen L. Erickson ◽  
Dennis L. Doubek ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
Marine Sponge ◽  
Antineoplastic Agents ◽  
New Guinea

Antineoplastic agents. 251. Isolation and structure of stylostatin 1 from the Papua New Guinea marine sponge Stylotella sp. [Erratum to document cited in CA118(5):36157a]

1993 ◽  
Vol 58 (11) ◽  
pp. 3222-3222 ◽  
Author(s):  
George R. Pettit ◽  
Jayaram K. Srirangam ◽  
Delbert L. Herald ◽  
Karen L. Erickson ◽  
Dennis L. Doubek ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
Marine Sponge ◽  
Antineoplastic Agents ◽  
New Guinea
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