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How does Cariniana estrellensis respond to different irradiance levels?

Journal of Forestry Research 2019年第1期30卷 31-44页

作者： Flávia Carolina Santos Portela Bernardo Pretti Becacici Macieira Leonardo Valandro Zanetti vinícius novo gama Diolina Moura Silva Camilla Rozindo Dias Milanez Geraldo Rogério Faustini Cuzzuol Department of Biological Sciences Federal University of Espírito Santo

Based on reports that variables related to photosynthesis(net assimilatory ratio and chloroplast pigments)are more plastic than the morphological and biochemical variables in a climax tropical species,Cariniana estrellensis,under contrasting irradiance,we hypothesised that plasticity of gas exchange variables is higher in relation to growth,biochemical and anatomical *** that were 14 months old were subjected to200 up to 2000 lmol m^(-2)s^(-1) of photo synthetically active radiation(PAR)for 140 *** increased up to1400 lmol m^(-2)s^(-1)PAR and then decreased at 2000 lmol m^(-2)s^(-1) PAR(full sunlight).This was related to the rate of photosynthesis(A)which showed the same tendency as photosystem Ⅱ performance index(PI_(ABS)).The greater thickness of the secondary xylem at 1400 lmol m^(-2)s^(-1) PAR indicated a higher water conductance *** decrease in specific leaf area,elongation of mesophyll cells,and increase in stomatal density observed at higher irradiances were associated with higher leaf fructose and sucrose *** concluded that the better growth in partial shade was due to higher photosynthetic *** the other hand,photosynthesis was inhibited equally in full sun and deep *** high adjustment capacity of *** to wide amplitudes of irradiance was provided by greater plasticity of gas exchange variables in relation to growth,anatomical,and biochemical variables.

关键词： Anatomy Ecophysiology Gas exchange Phenotypic plasticity Soluble carbohydrates

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De novo intraocular amyloid deposition after hepatic transplantation in familial amyloidotic polyneuropathy

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World Journal of Transplantation 2017年第4期7卷 243-249页

作者： Ivo Filipe gama Leonor Duarte Almeida Ophthalmology Department Santa Maria University Hospital (North Lisbon Hospital Center)

The familiar amyloid polyneuropathy(FAP) is a rare autosomal-dominant systemic amyloidosis. Amyloid deposition occurs more frequently and extensively in the vitq. The increase in intraocular pressure(IOP) is a result of deposition of transthyretin(TTR) in trabecular meshwork. Rarely, the amyloid deposition in anterior segment can be more exuberant than in posterior segment. A 42 years old man, with FAP(Val30Met mutation), liver transplantation in 1997. He was asymptomatic, without any significant ocular abnormality until 2011. In 2011 he had an episode of pain in right eye(RE). Scalloped pupils, pupillary amyloid deposits and subtle vitreous opacities were detected. The IOP was 40 mmHg in RE and 28 mmHg in left eye(LE) with open angle. Optical coherence tomography detected a temporal superior retinal nerve fiber layer defect in LE and perimetry was normal. Topical timolol was initiated, and brimonidine was subsequently added to improve IOP control, which was achieved with topical medication until last evaluation. No progression occurred since 2011. Actually, with longer life expectancies, there is an increased risk of ocular involvement in FAP, even after liver transplantation. Although rare, a more exuberant amyloid deposition in anterior segment vs posterior segment can occur, and supports an important role of amyloid production in ciliary pigment epithelium in these patients. Medical control of IOP and a stable course are unusual in this secondary glaucoma. Ophthalmologists have an important task in the follow-up of patients and early diagnosis of risk factors for secondary glaucoma, such as scalloped pupils with amyloid deposits.

关键词： Familial amyloid polyneuropathy Glaucoma Scalloped pupils Pupillary amyloid deposits Liver transplantation

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