In vitro culture of the flax rust, Melampsora lini

1970 ◽  
Vol 48 (4) ◽  
pp. 773-776 ◽  
Author(s):  
M. D. Coffey ◽  
A. Bose ◽  
Michael Shaw
Keyword(s):  
Ambient Temperature ◽  
In Vitro Culture ◽  
Yeast Extract ◽  
Coconut Milk ◽  
Melampsora Lini ◽  
Different Strains ◽  
Transfer Procedures ◽  
Inorganic Constituents

Two different strains of Melampsora lini (Pers.) Lév. were grown on media similar to those described by Turel (Can. J. Bot. 47: 821–823). Alterations in organic and inorganic constituents did not, in general, prevent growth. Peptone and yeast extract, singly or in combination, supported growth, but coconut milk did not. Maintenance of the ambient temperature below 17 °C during transfer procedures increased the number of colonies which grew. The mycelium was generally binucleate. Spore-like cells of varying shapes were found, some of which resembled uredospores and teliospores.

In vitro growth of wheat and flax rust fungi on complex and chemically defined media

1974 ◽  
Vol 52 (6) ◽  
pp. 1183-1195 ◽  
Author(s):  
A. Bose ◽  
Michael Shaw
Keyword(s):  
Liquid Medium ◽  
Aspartic Acid ◽  
Yeast Extract ◽  
Australian Isolate ◽  
Puccinia Graminis ◽  
Good Growth ◽  
Complex Media ◽  
Mineral Salts ◽  
Melampsora Lini

Growth from uredospores seeded in axenic culture is described for several races of Puccinia graminis Pers. f. sp. tritici (Erikss. and Henn.) and race 3 of Melampsora lini (Ehrenb.) Lév. on complex media containing peptone, yeast extract, and bovine serum albumin (BSA); and for an Australian isolate of Puccinia graminis, race 126-ANZ 6,7, and Melampsora lini, race 3, on chemically defined, liquid media.Of six North American isolates of Puccinia graminis only race 38 formed colonies approaching those of race 126-ANZ 6,7 in final size and general morphology on complex media. 5′AMP had no effect on the growth of 126-ANZ 6,7, but cyclic AMP inhibited growth after uredospore germination. Good growth and sporulation were obtained with 126-ANZ 6,7, but not with the other isolates tested, using a new, chemically defined liquid medium, sterilized by millipore filtration, and containing glucose, Czapek's minerals plus micronutrients, Ca2+, glucose and aspartic acid, glutathione, and cysteine. Uredospores produced in culture reinfected exposed mesophyll tissue, but not intact seedling leaves of wheat.Highly reproducible growth and sporulation of Melampsora lini, race 3, were obtained routinely on a solid medium containing Difco-Bacto agar, sucrose, Knop's minerals, micronutrients, yeast extract, peptone, and BSA. Vegetative cultures, capable of reinfecting the cut ends of surface-sterilized flax cotyledons, could be maintained indefinitely by subdivision before sporulation and transfer to the same medium minus BSA. Evidence is presented that BSA stimulated the development of colonies and the formation of uredospores. The mode of action of BSA is unknown, but it could not be replaced by putrescine.A new chemically defined, liquid medium containing sucrose, Knop's mineral salts, micronutrients, aspartic (or glutamic) acid, and cysteine supported the growth of colonies of Melampsora lini in a highly reproducible manner. The formation of uredospores and teliospores by these colonies was controlled by (a) the level of Ca2+ (as Ca(NO3)2∙4H2O), (b) the concentration of aspartic acid, and (c) the number of colonies per flask. At inoculum levels giving 40 to 60 colonies per flask, in media containing 8.5 mM Ca+ and 45 mM aspartic acid, uredospore formation occurred in 60 to 70% of the colonies. A decrease in the Ca2+ level to 4.25 mM, or a decrease in aspartic acid to 22.5 mM, or adjustment of the inoculum level to give about 10 colonies per flask each resulted in only infrequent sporulation. The uredospores produced in vitro infected intact, 1-week-old flax cotyledons in a normal manner.

Development of rabbit embryos during a 96-h period of in vitro culture after superovulatory treatment under conditions of elevated ambient temperature

1999 ◽  
Vol 56 (3-4) ◽  
pp. 279-290 ◽  
Author(s):  
H Cheng ◽  
M.P Dooley ◽  
S.M Hopkins ◽  
L.L Anderson ◽  
S Yibchok-anun ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
In Vitro Culture ◽  
Rabbit Embryos

In vitro culture of a dwarf mistletoe, Arceuthobium pusillum

1968 ◽  
Vol 46 (2) ◽  
pp. 161-164 ◽  
Author(s):  
J. M. Bonga ◽  
C. Chakraborty
Keyword(s):  
In Vitro Culture ◽  
Casein Hydrolysate ◽  
Coconut Milk ◽  
Dwarf Mistletoe ◽  
Anatomical Characteristics ◽  
Original Length

Embryos, small seedlings, and seeds of Arceuthobium pusillum Peck were cultured on White's medium supplemented with coconut milk and casein hydrolysate. The embryos increased in size up to five times their original length and often produced a holdfast at the tip of the radicle. Holdfasts with haustorial wedges were produced in cultures of small seedlings. In some of the seed cultures the radicles produced branches which showed many of the anatomical characteristics typical of young branches of the natural endophytic system inside the host bark. Occasionally a callus mass was formed at the base of the radicle and on the seed.

scholarly journals MULTIPLIKASI Aquilaria malaccensisDENGAN NAA DAN RAGI PADA KULTUR IN VITRO

2021 ◽  
Vol 15 (1) ◽  
pp. 51-59
Author(s):  
Samanhudi Samanhudi ◽  
◽  
Amalia Tetrani Sakya ◽  
Indah Tri Retnosari
Keyword(s):  
Plant Physiology ◽  
In Vitro Culture ◽  
Yeast Extract ◽  
Yeast Growth ◽  
Randomized Design ◽  
Aquilaria Malaccensis ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Yeast Concentration

Multiplication of Aquilaria malaccensis with naa and yeast growth regulators on in vitro culture. This study aims to obtain the best concentration of NAA and yeast extract for multiplication of agarwood on in vitro culture. This research was conducted from January to October 2020 at the Laboratory of Plant Physiology and Biotechnology, Faculty of Agriculture, Universitas SebelasMaret, Surakarta. The experimental design used was a factorial completely randomized design (CRD) with twofactors, namely NAA (0 ppm; 0.1 ppm; 0.2 ppm; and 0.3 ppm) and yeast extract (0 mg/l, 700 mg/l, 800 mg/l, and 900 mg/l).(+)The results showed that the combination of 0 ppm NAA and 900 mg/lyeast increasedthe number of shoots of A.malaccensis explants with the highest average number of 3.67 shoots. A single NAA concentration of 0 ppm was able to increase the number of leaves of explants of A. malaccensis with the highest average leaf rate of 24.5 leaves. A single yeast concentration of 0 mg/lwas able to increase the number of leaves of A. malaccensis explants with an average of 22 leaves.

Isohexenylnaphthazarins from Lithospermum canescens (Michx.) Lehm. and Arnebia euchroma (Royle) Jonst. in vitro culture

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
K Graikou ◽  
H Damianakos ◽  
K Syklowska-Baranek ◽  
A Pietrosiuk ◽  
M Jeziorek ◽  
...  
Keyword(s):  
In Vitro Culture ◽  
Arnebia Euchroma ◽  
Lithospermum Canescens

Effect of antioxidants on in vitro culture of pomegranate cv. Sindhuri

2018 ◽  
Vol 34 (2) ◽  
pp. 311-318
Author(s):  
Ravi Kumar ◽  
◽  
M.L. Jakhar ◽  
Komal Sekhawat ◽  
Swarnlata Kumawat ◽  
...  
Keyword(s):  
In Vitro Culture

Leaf Color of Plants Regenerated through In Vitro Culture from Variegated Leaf Segments of Caladium.

1993 ◽  
Vol 62 (3) ◽  
pp. 619-624 ◽  
Author(s):  
Yu Zhu ◽  
Tetsuyuki Takemoto ◽  
Susumu Yazawa
Keyword(s):  
In Vitro Culture ◽  
Leaf Color ◽  
Leaf Segments ◽  
Variegated Leaf

Callus Induction and Plant Regeneration in Rauvolfia Serpentina (L.) Benth Ex. Kurz.

2009 ◽  
Vol 24 ◽  
pp. 82-88 ◽  
Author(s):  
Saraswoti Aryal ◽  
Sanu Devi Joshi
Keyword(s):  
Acetic Acid ◽  
Callus Induction ◽  
Coconut Milk ◽  
Ms Medium ◽  
Rauvolfia Serpentina ◽  
History Museum ◽  
Short Period ◽  
Murashige Skoog ◽  
Callus Tissue Culture

Rauvolfia serpentina (L.) ex. Kurz is an important medicinal plant. Callus induction and regeneration was studied from stem explant of in-vitro grown plant of Rauvolfia serpentina(L.) Benth. ex Kurz (Apocynaceae) on Murashige Skoog (1962) medium supplemented with 1mg/l 2,4-Dichlorophenocy acetic acid (2,4-D) and 1mg/l Kinetin (Kn). Vigorous growth of callus occurs after 4 weeks of culture. Callus was sub-cultured on Murashige and Skoog (MS) medium supplemented with different concentration of 2, 4-D (0.5-3.0 mg/l) and 10% coconut milk. Regeneration of plantlets occurred on MS medium containing 3 mg/1 of 2, 4-D and 10% coconut milk. These plantlets were rooted on MS medium supplemented with 1 mg/l IAA .The regenerated plantlets were able to grow on soil after short period ofacclimatization. Key words: Explant; In-vitro culture; MS medium;  2, 4 Dichlorophenoxy acetic acid; Kinetin; Callus; Tissue culture; Coconut milk. Journal of Natural History Museum Vol. 24, 2009 Page: 82-88

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