{"refrec":{"BRefID":144717,"RR":"<b>Durako, M.J.; Kuss, K.M.</b> (1994). Effects of <i>Labyrinthula</i> infection on the photosynthetic capacity of <i>Thalassia testudinum</i>. <i>Bull. Mar. Sci. 54(3)</i>: 727-732","BEntID":137827,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Bull. Mar. Sci. 54(3)</i>: 727-732","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Durako, M.J.; Kuss, K.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Durako, M.J.; Kuss, K.M.","Englishabstract":"Blackened, necrotic lesions on <i>Thalassia testudinum</i> leaves are frequently associated with seagrass die-off in Florida Bay. A previously undescribed species of the marine slime mold, genus <i>Labyrinthula</i>, is the primary causal agent of these lesions. When <i>Labyrinthula</i> infection was present, variations in lesion coverage resulted in significant differences in dry-weight based photosynthesis versus irradiance (P/I) responses of <i>Thalassia</i> leaf tissue, reducing photosynthetic capacity and oxygen output. Maximum photosynthetic rate, P<sub>max</sub>, decreased to below zero when lesions covered 25% or more of the leaf tissue. In addition, respiration rates in infected leaves were up to three times greater than in adjacent, uninfected tissue. Alpha ( alpha ), the initial slope of the P/I relationship, exhibited little change with low lesion coverage but was usually reduced with higher lesion coverage. These results show that the presence of <i>Labyrinthula</i> lesions impair photosynthesis of <i>Thalassia</i> leaf tissues and might reduce oxygen available for transport to belowground tissues, possibly making <i>Thalassia</i> more susceptible to hypoxia and sulfide toxicity.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Effects of <i>Labyrinthula</i> infection on the photosynthetic capacity of <i>Thalassia testudinum</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1994,"MonPub":null,"DateUpdate":"2017-02-06","DateCreate":"2010-04-26","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1994PQ26700011","VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":144717,"PubliDate":1994,"Pagination":"727-732","XtraPublOfAnaID":null,"ISBN":null,"Volume":"54","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42490,"SerRR":"Bulletin of Marine Science. 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