Wound Healing in Cultured <i>Eucheuma alvarezii </i>var. <i>tambalang </i>Doty

Azanza-Corrales, R.; Dawes, Clinton J.

doi:10.1515/botm.1989.32.3.229

Cited by 30 publications

(13 citation statements)

References 15 publications

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“…On the other hand, ice-ice due to mechanical stress caused by wounding was not observed. Azansa-Corrales & Dawes (1989) reported the wound-healing process in K. alvarezii which probably explains their recovery after a week from wound inflicted mechanically.…”

Section: Discussionmentioning

confidence: 93%

Laboratory-induced development of the ice-ice disease of the farmed red algae Kappaphycus alvarezii and Eucheuma denticulatum (Solieriaceae, Gigartinales, Rhodophyta)

et al. 1995

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The most common perception of unfavorable environmental factors causing the ice-ice disease in the farmed seaweeds, Kappaphycus and Eucheuma, was demonstrated in this study for the first time using stressful conditions of abiotic factors in a continuous culture system. Light intensity of less than 50 /mol photon m -2 s-1 and salinity of 20%o or less induced ice-ice whitening characterized by short segments at midbranches which were similar to those observed in the Philippine seaweed farms, while temperatures of up to 33-35 C resulted in wide-scale whitening leading to complete damage of the branches. These effects were preceded by slow growth rates from an optimum of 3.7% d -1 to almost -2.0% d -1. Mechanical stress by wound injury did not result to ice-ice whitening similar to the above. Environmental factors observed to trigger ice-ice in the laboratory, although may not necessarily parallel those in the field, may act synergestically to produce similar effects.

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Section: Discussionmentioning

confidence: 93%

Laboratory-induced development of the ice-ice disease of the farmed red algae Kappaphycus alvarezii and Eucheuma denticulatum (Solieriaceae, Gigartinales, Rhodophyta)

et al. 1995

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“…Coleman et al 1992. These elevated levels of phenolic compounds have been, shown to prevent pathogenic attacks on the damaged tissue and are hypothesized to precipitate proteins, thereby 'clotting' the wound (Sieburth & Conover 1965, Faberberg & Dawes 1976, Azanza-Corrales & Dawes 1989. If induction of phlorotannins serves a wound-healing purpose in algae, it seems likely that all tissues of a plant would benefit from induction; this response should be very rapid, but should not persist once the wound is closed.…”

Section: Discussionmentioning

confidence: 99%

“…Likewise, algal phlorotannins have been found to deter herbivory by gastropods, urchins, and amphipods (Geiselman & McConnell 1981, Anderson & Velimirov 1982, Steinberg 1984, Johnson & Mann 1986, Denton & Chapman 1991, Winter & Estes 1992, Yates & Peck01 1993, Poore 1994, but for exceptions see Steinberg & van Altena 1992, Steinberg 1995, Targett et al 1995. Phlorotannins may also act in wound-healing processes (Faberberg & Dawes 1976, Azanza-Corrales & Dawes 1989, prevent microbial attack (Sieburth & Conover 1965), act as antifouling agents (Sieburth & Conover 1965, Langlois 1975, Alogily & Knight-Jones 1977, but see J e n n~n g s & Steinberg 1997), and protect algae from ultraviolet radiation (Pavia et al 1997). Anti-algal, anti-larval, and antifungal activities have also been attributed to phloro-tannins (see review by Ragan & Glombitza 1986).…”

Section: Introductionmentioning

confidence: 99%

Rapid phlorotannin induction and relaxation in five Washington kelps

Hammerstrom¹,

Dethier²,

Duggins³

1998

Mar. Ecol. Prog. Ser.

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ABSTRACT-Wounding of both terrestrial and marine plants is known to induce chemical responses in the plants; the induced compounds may defend against herbivory or act in wound-healing processes. We demonstrate here, for the first time, induction of phlorotannins in kelps (Phaeophyta, Laminariales). an important and widespread group of marine benthic algae. The rapid response of kelps to mechanical wounding contrasts with previously published work on other marine algae, where response has been slower. In 4 of the 5 species tested, induction (increases of approximately 30 to 9036 of original levels) occurred very rapidly, within 1 to 3 d of wounding, although the magnitude and duration of the induction varied among species and tissue types. Many induced responses persisted for 5 to 7 d and then relaxed. Relaxation times are a critical component in the hypothesized cost-effectiveness of induced versus constitutive defenses, and this is one of the first attempts to measure relaxation times of chemlcal defenses in marine algae. The temporal persistence of the response suggests an antiherb~vory rather than a wound-healing function for induction of phlorotannins, although this needs further testing KEY MiORDS Kelp phlorotannins . Induction Relaxat~on Chemlcal defense . Wound heal~ng Herb~vory

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“…without algal endophytes) medullary tissue of a frond, per se, does not necessarily result in necrosis and softening of the thallus. Furthermore, it is also known that healthy thalli heal wounds, and avold bacterial infections, by sealing openings that expose inner tissues (Fulcher & McCully 1969, Azanza-Corrales & Dawes 1989. This capacity appears diminished or even absent in infections of algal hosts by algal endophytes (Correa & McLachlan 1992).…”

Section: Discussionmentioning

confidence: 99%

Green patch disease In Indaea laminarioides (Rhodophyta) caused by Endophyton sp. (Chlorophyta;

Correa¹,

Flores²,

Garrido³

1994

Dis. Aquat. Org.

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Green patch disease in Iridaea IaminarioidesABSTRACT-A green mottled coloration, or green patch disease, develops in the red alga lridaea laminarioides Bory when it is infected by the algal endophyte Endophyton sp. The disease is widespread in host populations along the coast of central and southern Chile (33" l?' S to 40°33' S) and affects both gametophytic and sporophytic fronds. It is characterized by green areas, usually located at the base of the thalli, which become soft in texture in fully developed infections. The softening of the host tissue is caused by cellular destruction resulting from endophyte-mediated compaction of the cells, followed by secondary bacterial infections. Bacteria gain access to the host through openings left in the host thallus during spore release from mature sporangia of Endophyton. Both life-history phases of I. laminarioides were successfully infected by unialgal isolates of Endophyton in laboratory trials. Infection was achieved only by germlings from newly settled spores and the process of penetration was completed within 3 d. Softening of laboratory-infected thalli became evident about 8 wk after penetration and thallus destruction was complete after 3 to 4 mo of culture.

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Wound Healing in Cultured Eucheuma alvarezii var. tambalang Doty

Cited by 30 publications

References 15 publications

Laboratory-induced development of the ice-ice disease of the farmed red algae Kappaphycus alvarezii and Eucheuma denticulatum (Solieriaceae, Gigartinales, Rhodophyta)

Laboratory-induced development of the ice-ice disease of the farmed red algae Kappaphycus alvarezii and Eucheuma denticulatum (Solieriaceae, Gigartinales, Rhodophyta)

Rapid phlorotannin induction and relaxation in five Washington kelps

Green patch disease In Indaea laminarioides (Rhodophyta) caused by Endophyton sp. (Chlorophyta;

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