scholarly journals UJI AKTIVITAS ANTIFUNGAL EKSTRAK DAUN JOHAR (Cassia siamea Lamk) TERHADAP PERTUMBUHAN FUNGI Phytophthora palmivora

2021 ◽  
Vol 4 (02) ◽  
pp. 1-8
Author(s):  
Yusup indra Putra ◽  
Hasyim As'ari ◽  
Tristi Indah Dwi Kurnia
Keyword(s):  
Phytophthora Palmivora ◽  
Cassia Siamea

Phytophthora palmivora adalah fungi penyebab busuk buah pada tanaman kakao. Kerusakan yang diakibatkan oleh fungi ini adalah menurunya hasil panen hingga 90%. Penelitian ini bertujuan untuk mengetahui adanya pengaruh pemberian ekstrak daun tanaman johar (Cassia Siamea Lamk) terhadap pertumbuhan fungi Phytophthora palmivora. Jenis penelitian ini adalah eksperimental laboratoris dengan metode RAL dengan 3 kali ulangan dan 7 perlakuan. Hasil analisis data menunjukan adanya pengaruh antara konsentrasi ekstrak daun tanaman johar (Cassia Siamea Lamk) terhadap pertumbuhan fungi Phytopthora palmivora dengan berbeda signifikan pada tiap-tiap konsentrasinya. Konsentrasi ekstrak daun tanaman johar (Cassia Siamea Lamk) yang paling efektif adalah 50% dengan rata-rata diameter zona hambat sebesar 1.34 cm.

Crude Extracts of Leaf and Stem Bark of CASSIA SIAMEA have IN VITRO Antimicrobial Activity

2014 ◽  
Vol 1 (1) ◽  
pp. 43-48
Author(s):  
Mahmoud Jada ◽  
◽  
Wurochekke Usman ◽  
Muhammad Abdulazeez
Keyword(s):  
Antimicrobial Activity ◽  
Stem Bark ◽  
Cassia Siamea ◽  
In Vitro Antimicrobial Activity ◽  
Crude Extracts

Genetic diversity of native cultivated cacao accessions (Theobroma cacao L.) in Nicaragua

2012 ◽  
Vol 10 (3) ◽  
pp. 254-257
Author(s):  
Erwin Aragon ◽  
Claudia Rivera ◽  
Helena Korpelainen ◽  
Aldo Rojas ◽  
Paula Elomaa ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Theobroma Cacao ◽  
Phytophthora Palmivora ◽  
Genetic Composition ◽  
Breeding Programmes ◽  
Black Pod ◽  
Black Pod Disease ◽  
Parental Lines ◽  
Resistant Genotypes ◽  
Theobroma Cacao L

A total of 60 farmers' cacao accessions (Theobroma cacao L.) from Nicaragua were investigated using microsatellite markers to reveal their genetic composition and to identify potentially resistant genotypes against the black pod disease caused by Phytophthora palmivora. These accessions were compared with 21 breeders' accessions maintained locally, two Criollo accessions from Costa Rica and two accessions from Ecuador. The analyses showed a low level of differentiation among groups of farmers' accessions (FST = 0.06) and that six Nicaraguan accessions were genetically closely related to the two Criollo accessions used as a reference. In addition, seven distinct genotypes were found to have allelic composition that may indicate linkage to resistance alleles, thus being potential parental lines in future breeding programmes.

scholarly journals The expression of pathogenicity-related genes in Phytophthora palmivora causing black pod rot disease on cacao (Theobroma cacao L.) in Indonesia

2021 ◽  
Vol 16 (1) ◽  
pp. 284-295
Author(s):  
Masanto Masanto ◽  
Arif Wibowo ◽  
Nur Fathurahman Ridwan ◽  
Widhi Dyah Sawitri ◽  
Koji Kageyama ◽  
...  
Keyword(s):  
Theobroma Cacao ◽  
Phytophthora Palmivora ◽  
Black Pod ◽  
Rot Disease ◽  
Theobroma Cacao L

Selection of cocoa clones for resistance to Phytophthora palmivora by artificial inoculation and natural infection in the field

2021 ◽  
Author(s):  
Vanusa Rodrigues de Souza ◽  
Edna Dora Martins Newman Luz ◽  
José Luis Pires ◽  
Marcos Vinicius Oliveira dos Santos ◽  
Elisângela dos Santos ◽  
...  
Keyword(s):  
Natural Infection ◽  
Artificial Inoculation ◽  
Phytophthora Palmivora ◽  
Selection Of

scholarly journals Role of phosphatide acid during differentiation of Phytophthora palmivora zoospores

1992 ◽  
Vol 138 (3) ◽  
pp. 451-459 ◽  
Author(s):  
Q. ZHANG ◽  
J. M. GRIFFITH ◽  
B. R. GRANT
Keyword(s):  
Phytophthora Palmivora ◽  
Phosphatide Acid

Siamin, ein neues isochinolon-derivat aus cassia siamea

1976 ◽  
Vol 17 (11) ◽  
pp. 821-824 ◽  
Author(s):  
Byung Zun Ahn ◽  
Felix Zymalkowski
Keyword(s):  
Cassia Siamea

Adhesion of Phytophthora palmivora zoospores: electron microscopy of cell attachment and cyst wall fibril formation

1975 ◽  
Vol 18 (1) ◽  
pp. 123-132
Author(s):  
V.O. Sing ◽  
S. Bartnicki-Garcia
Keyword(s):  
Electron Microscopy ◽  
Cell Adhesion ◽  
Cyst Wall ◽  
Cell Attachment ◽  
Sodium Dodecyl ◽  
Film Surface ◽  
Phytophthora Palmivora ◽  
Thin Sections ◽  
Electron Dense Deposit ◽  
Dense Deposit

Zoospores of Phytophthora palmivora adhered to a plastic film surface were examined by electron microscopy. Three stages of adhesion were compared: (1) non-adhesive, unencysted zoospores, (2) adhered incipient cysts, and (3) adhered mature cysts. Thin sections of incipient cysts revealed cells attached to the film surface through the partially discharged contents of the so-called peripheral vesicles; this seems to be the first step in cell adhesion. In mature cysts, the adhesive appeared to have been compacted into an electron-dense deposit binding the cyst wall to the plastic surface. The adhesion zone was also examined in face view after lysing attached incipient cysts with sodium dodecyl sulphate. Cyst wall microfibrils were seen together with an amorphous substance (presumably the adhesive material). The microfibrils were in various stages of formation. Seemingly, adhesion and microfibril formation take place concurrently. The possibility was considered that the material contained in the peripheral vesicles serves in both cell adhesion and microfibril elaboration.

Inoculum source of Phytophthora palmivora jackfruit seedlings health in response to potting media porosity, sanitation, inoculation, and phosphonate application

2021 ◽  
Vol 23 (2) ◽  
pp. 130-135
Author(s):  
Elsie E. Salamat ◽  
L.M. Borines ◽  
Enrico C. Virrey ◽  
Wences Rey de la Pea ◽  
Vanessa Israel ◽  
...  
Keyword(s):  
Phytophthora Palmivora ◽  
Inoculum Source ◽  
Potting Media

Polyporus baudonii. [Descriptions of Fungi and Bacteria].

1975 ◽  
Author(s):  
G. C. A. van der Westhuizen
Keyword(s):  
South Africa ◽  
Geographical Distribution ◽  
Ivory Coast ◽  
Brown Rot ◽  
Gmelina Arborea ◽  
Cassia Siamea ◽  
Root Contact ◽  
Upper Volta

Abstract A description is provided for Polyporus baudonii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Celtis rhomnifolia, Cassia siamea, Eucalyptus spp., Gmelina arborea, Pinus spp. DISEASE: Death of host and decay of roots and crown. Pale brown rot. GEOGRAPHICAL DISTRIBUTION: Africa (Angola, Congo, Ghana, Ivory Coast, Kenya, Malagasy, Mozambique, Republic of South Africa, Tanzania, Upper Volta, Zaire). TRANSMISSION: Through soil by root contact; by air-borue spores.

scholarly journals Vasodilator Effect of Cassiarin A, a Novel Antiplasmodial Alkaloid from Cassia siamea, in Rat Isolated Mesenteric Artery

2010 ◽  
Vol 33 (5) ◽  
pp. 844-848 ◽  
Author(s):  
Takayuki Matsumoto ◽  
Tsuneo Kobayashi ◽  
Keiko Ishida ◽  
Yusuke Hirasawa ◽  
Hiroshi Morita ◽  
...  
Keyword(s):  
Mesenteric Artery ◽  
Cassia Siamea ◽  
Vasodilator Effect
Sign in / Sign up

Export Citation Format

Share Document