Conceptacles are specialized cavities of marine and freshwater algae that contain the reproductive organs. They are situated in the receptacle and open...
12 KB (1,370 words) - 05:28, 2 November 2024
whorls of branches reminiscent of the horsetails occur at the nodes. Conceptacles are another polyphyletic trait; they appear in the coralline algae and...
92 KB (10,575 words) - 12:12, 19 November 2024
broken and dislodged fragments. Hormosira reproduction Female conceptacle Male conceptacle Hormosira is regarded as an ecosystem engineer or habitat former...
9 KB (887 words) - 04:29, 27 June 2024
it is attached to the rock by a holdfast. The gametangia develop in conceptacles embedded in receptacles in the apices of the final branches. They may...
18 KB (1,766 words) - 21:37, 24 October 2024
internally, which are released to meet a prospective carpogonium in its conceptacle. The δ13C values of red algae reflect their lifestyles. The largest difference...
62 KB (6,198 words) - 12:04, 17 November 2024
via the haemolymph (blood) to sperm storage structures called seminal conceptacles, with fertilisation eventually taking place at the ovaries. The "Cimex...
37 KB (4,178 words) - 20:04, 26 October 2024
the only form for each generation. Gametes are formed in specialized conceptacles that occur scattered on both surfaces of the receptacle, the outer portion...
59 KB (5,867 words) - 02:48, 21 November 2024
the female's blood (haemolymph) to sperm storage structures (seminal conceptacles); they are released from there to fertilise her eggs inside her ovaries...
68 KB (6,825 words) - 15:21, 17 November 2024
specialised structures which contain the reproductive organs called conceptacles. Receptacles also function as a structure that captures food. Blackberry...
2 KB (217 words) - 12:56, 9 August 2024
metres by the following summer when they become mature. They bear the conceptacles, the reproductive organs, and begin to decay when the gametes have been...
4 KB (307 words) - 13:55, 22 September 2023
underlying surface. Lithothamnion reproduces by means of multiporate conceptacles. The valid species currently considered to belong to this genus are:...
6 KB (487 words) - 20:28, 17 May 2023
The reproductive bodies form in conceptacles sunken in receptacles towards the tips on the branches. In these conceptacles oogonia and antheridia are produced...
7 KB (726 words) - 12:54, 4 November 2024
Archaeolithophyllum is a genus of conceptacle-bearing red alga that falls in the coralline stem group. It somewhat resembles Lithophyllum. As of today...
3 KB (243 words) - 17:59, 10 March 2021
infections were usually most abundant on the conceptacles - usually next to the osteoles (conceptacles openings). Although Hormosira is dioecious, Nothiea...
9 KB (904 words) - 04:32, 27 June 2024
non-mineralized thalli take a crustose form. Hildenbrandia reproduces by means of conceptacles and produces tetraspores. Hildenbrandia cells are around 3–5 μm in diameter...
12 KB (1,178 words) - 13:07, 18 August 2023
of a holdfast, a stipe, and a frond. Oogonia and antheridia occur in conceptacles embedded in receptacles on special branches. Some species have berrylike...
36 KB (3,615 words) - 15:41, 22 October 2024
of the Silurian period. They may have evolved by the modification of conceptacles from plants' alga-like ancestors. However, the evolution of stomata must...
37 KB (4,475 words) - 06:02, 22 October 2024
case, catch, catchment, chase, conceit, conceivable, conceive, concept, conceptacle, conceptible, conception, conceptional, conceptive, conceptual, contraception...
250 KB (126 words) - 12:30, 3 April 2024
multi-layered flattened or curved branches. It also has a pore canal of simple conceptacles which are not surrounded by specialised cells. It also the only known...
2 KB (214 words) - 01:50, 23 May 2023
moat-like depression around the raised conceptacle. There are several types of sporangia found within the conceptacle. The tetrasporangia are formed around...
16 KB (1,868 words) - 02:32, 1 March 2024
diameter and c 90 micrometre thick. Conceptacles small but raised and visible. Carposporangial and tetrasporangial conceptacles are common. Very common growing...
2 KB (170 words) - 17:37, 5 December 2023
flask-shaped multiporate conceptacles; it produces tetraspores and dispores. Mucus plugs the opening of young conceptacles, which open as they mature...
2 KB (159 words) - 19:01, 13 August 2023
Mastophoroideae are a subfamily of Corallinaceaen coralline algae with uniporate conceptacles. Aguirre, Julio; Perfectti, Francisco; Braga, Juan (1 December 2010)...
1 KB (69 words) - 10:02, 4 November 2021
dioecious, either male or female. The gametes are produced in the spring in conceptacles embedded in yellowish receptacles on short branches. A year after the...
28 KB (3,252 words) - 01:11, 1 November 2024
structure involved in coralline reproduction is the presence of the conceptacle, a calcified depression wherein the tetrasporangia, spermatangia, and...
10 KB (952 words) - 19:07, 18 November 2024
mesospermalege and eventually reach the spermathecae, also referred to as seminal conceptacles. At the microscopic level, Drosophila males have differing sperm tail...
26 KB (3,248 words) - 23:14, 17 October 2024
laterally branched, the divisions nodulose, to 2.5 mm diam., tapering, the conceptacles hermaphrodite, the oval sporangia 133-200 μ long, 46-80 μ diam., each...
10 KB (1,070 words) - 12:11, 11 November 2024
Hildenbrandiales is an order of crustose forms red alga which bear conceptacles and produce secondary pit-connections. They reproduce by vegetative gemmae...
3 KB (243 words) - 06:21, 8 February 2024
organisms possess secondary pit connections. Amphiroa reproduces by means of conceptacles; it produces tetraspores. Its pore canals are lined with parallel filaments;...
11 KB (1,014 words) - 14:31, 24 November 2023
and all of its reproductive structures are protected by specialized conceptacles, sac-like structures that are situated in the receptacle. The triphasic...
8 KB (912 words) - 02:24, 25 May 2023