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8 results for “Dumontiaceae”
FIGURE 8 in Multilocus phylogeny reveals Gibsmithia hawaiiensis (Dumontiaceae, Rhodophyta) to be a species complex from the Indo-Pacific, with the proposal of G. eilatensis sp. nov.
FIGURE 8. Gibsmithia eilatensis sp. nov. A–B) Mature corncob-like spermatangial heads. A) Slide DG220-1. Scale bar 50 μm. B) Slide DG220-1, scale bar 20 μm. C) Young and mature tetrasporangia. Slide DG219-1. Scale bar 20 μm. D–E) Terminal and lateral tetrasporangial initials growing on lateral assimilatory filaments, and decussate and cruciate tetrasporangia. D) Slide DG219-1. Scale bar 50 μm. E) Slide DG219-1. Scale bar 20 μm.
FIGURES 5 in Multilocus phylogeny reveals Gibsmithia hawaiiensis (Dumontiaceae, Rhodophyta) to be a species complex from the Indo-Pacific, with the proposal of G. eilatensis sp. nov.
FIGURES 5. Range of habits of Gibsmithia hawaiiensis from the Hawaiian Islands (dry herbarium specimens). Main Hawaiian Islands: A) DG261, Hawaii; B) DG255, Hawaii; C) DG253, Oahu; D) DG267, Oahu. Northwestern Hawaiian Islands: E) DG258; F) DG218. Scale bar = 1.0 cm.
FIGURE 3 in Multilocus phylogeny reveals Gibsmithia hawaiiensis (Dumontiaceae, Rhodophyta) to be a species complex from the Indo-Pacific, with the proposal of G. eilatensis sp. nov.
FIGURE 3. Consensus phylogram obtained from the Bayesian Inference analysis of the concatenated dataset (rbcL, UPA and COI- 5P). Numbers besides nodes indicate posterior-probabilities (BI) and bootstrap values (ML), respectively. Scale bar indicates number of substitutions per site. A to E represent the different lineages observed. Numbers represents the respective marine provinces: 1) Hawaii; 2) Southeast Polynesia; 3) Sunda Shelf; 4) Western Coral Triangle; 5) Tropical Northwestern Pacific; 6) Western Indian Ocean; 7) Red Sea and Gulf of Aden.
FIGURE 2 in Multilocus phylogeny reveals Gibsmithia hawaiiensis (Dumontiaceae, Rhodophyta) to be a species complex from the Indo-Pacific, with the proposal of G. eilatensis sp. nov.
FIGURE 2. Reported distribution of Gibsmithia hawaiiensis prior to this study (grey shade), based on records listed in AlgaeBase (Guiry & Guiry 2016): Africa: South Africa, Tanzania; Indian Ocean Islands: Seychelles; Asia: China, Japan, Taiwan; South-east Asia: Indonesia, Philippines, Vietnam; Australia and New Zealand: Australia, Coral Sea Islands Territory, Papua New Guinea, Queensland, Western Australia; Pacific Islands: Central Polynesia, Federated States of Micronesia, Fiji, French Polynesia, Guam, Hawaiian Islands, Mariana Islands, Northern Hawaiian Islands, Republic of Palau. Collection sites are marked with shapes corresponding to the different lineages from Fig. 3.
FIGURE 1 in Multilocus phylogeny reveals Gibsmithia hawaiiensis (Dumontiaceae, Rhodophyta) to be a species complex from the Indo-Pacific, with the proposal of G. eilatensis sp. nov.
FIGURE 1. In situ habits of Gibsmithia hawaiiensis complex. A) DG234, Eilat, Israel. B) SGAD0509563, Kepulauan Seribu, Indonesia. C) SGAD0911460, Ternate, Indonesia. D) TIG001, Pulau Tiga, Malaysia. E) SGAD1205119, Johor, Malaysia. F) SGAD0712185, Raja Ampat, Indonesia. G) SGAD1206005, Labuan, Malaysia. Four individuals, each comprising one stipe and one to a few lobes. H) LEM03, Bitung, Indonesia. Scale bar 1 cm. Photo credits: A) T. Sauvage; B) A. Gittenberger; C, E–G) S.G.A. Draisma; D) M.A.S. Hussein; H) B.T. Reijnen.
FIGURE 7 in Multilocus phylogeny reveals Gibsmithia hawaiiensis (Dumontiaceae, Rhodophyta) to be a species complex from the Indo-Pacific, with the proposal of G. eilatensis sp. nov.
FIGURE 7. Gibsmithia eilatensis sp. nov. Early post-fertilization stages. A) Vegetative lateral branch (arrowhead) on basal cell of carpogonial filament, and curved hypogynous cell (arrow). Slide DG210-4. Scale bar 50 μm. B) Presumed early fertilization stage showing lateral extension of carpogonium and hypogynous cell (arrowhead). Slide DG210-1. Scale bar 50 μm. C) Auxiliary cell branch. Slide DG234-4. Scale bar 50 μm. D) Unsegmented incoming connecting filament (ic) partly and laterally fused to auxiliary cell, and unseptated outgoing connecting filament (oc). Slide DG234-2. Scale bar 100 μm. E) Incoming connecting filament (ic) segment partly fused with auxiliary cell, and outgoing connecting filament (oc) segment (arrow) partly fused with nearby auxiliary cell. Slide DG234- 3. Scale bar 50 μm. F) Gonimoblast initial (arrow) developed from the short segment partly fused to auxiliary cell, between incoming connecting filament (ic) and outgoing connecting filament (oc). Slide DG234-3. Scale bar 50 μm. G–H) Multiple gonimoblast initials cut off bilaterally from connecting filament segment (arrow) fused to auxiliary cell. G) Slide DG234-3. Scale bar 50 μm. H) Slide DG234-5. Scale bar 50 μm. I) Young clusters of spermatangia (arrow) formed terminally and laterally in assimilatory filaments. Slide DG220-1. Scale bar 50 μm.
FIGURE 4 in Multilocus phylogeny reveals Gibsmithia hawaiiensis (Dumontiaceae, Rhodophyta) to be a species complex from the Indo-Pacific, with the proposal of G. eilatensis sp. nov.
FIGURE 4. In vivo habits of G. eilatensis sp. nov. Specimens growing: A) attached to coral reef surface (DG219; isotype), B) between coral heads (DG210) and C) under a coral wall (DG234; holotype). Scale bar = 1.0 cm
FIGURE 6 in Multilocus phylogeny reveals Gibsmithia hawaiiensis (Dumontiaceae, Rhodophyta) to be a species complex from the Indo-Pacific, with the proposal of G. eilatensis sp. nov.
FIGURE 6. Gibsmithia eilatensis sp. nov. A) Holotype, female gametophyte, DG234, Eilat, Israel. B) Assimilatory filaments comprised of main percurrent filaments (arrow), cortical filaments (arrowhead) and rhizoidal filaments (double arrowhead). Rhizoidal filaments with cells connected to neighboring rhizoidal cells. Slide DG219-2. Scale bar 200 μm. C) Female pre-fertilization stages among elongated, narrow assimilatory filaments. Slide DG234-3. Scale bar 200 μm. D) Hairlike extensions from apical cortical cells. Slide DG210-2. Scale bar 50 μm. E) Branched and unbranched "seirospore" filaments. Slide DG210-5. Scale bar 50 μm. F) Carpogonial branch laterally positioned on assimilatory filaments, with straight and obliquely (arrow) directed trichogynes. Slide DG210-1. Scale bar 50 μm. G) Carpogonial branch with laterally extended hypogynous cell (double arrowhead), small subhypogynous cell (arrowhead) and conical carpogonium (arrow) with straight trichogyne. Slide DG210-4. Scale bar 50 μm.
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