EXTERNAL-BEAM ANALYSIS OF LIVING SYCAMORE XYLEM INFECTED BY PATHOGENIC FUNGI

被引：12

作者：

GRIME, GW ^{[1
]}

PEARCE, RB ^{[1
]}

机构：

[1] UNIV BIRMINGHAM,SCH BIOL SCI,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 104卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(95)00411-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Interactions between the living xylem (sapwood) of sycamore (Acer pseudoplatanus) and wood inhabiting fungi have been investigated using a number of techniques including conventional histochemical and biochemical methods, non-invasive NMR imaging and external beam microPIXE analysis using a 200 mu m diameter beam of 3 MeV protons from the new external beam facility on the Oxford Scanning Proton Microprobe. The site of the fungal lesion on a living tree was exposed by a fresh cut immediately prior to analysis and both longitudinal and radial profiles through the infected regions were obtained in a point-by-point fashion. Profiles of several inorganic elements were obtained which correlated well with the observed discoloration due to the infection. The new external beamline at Oxford is described and results are presented. These are discussed in relation to the investigation of anti-microbial defence mechanisms in living trees.

引用

页码：299 / 305

页数：7

共 17 条

[1]

BODDY L, 1992, DEFENCE MECHANISMS W

[2] AN INDUCED PAPILLA RESPONSE IN PRIMARY ROOTS OF SCOTS PINE CHALLENGED INVITRO WITH CYLINDROCARPON-DESTRUCTANS [J].

BONELLO, P ;

PEARCE, RB ;

WATT, F ;

GRIME, GW .

PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY, 1991, 39 (03) :213-228

[3] THE OXFORD SUBMICRON NUCLEAR MICROSCOPY FACILITY [J].

GRIME, GW ;

DAWSON, M ;

MARSH, M ;

MCARTHUR, IC ;

WATT, F .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1991, 54 (1-3) :52-63

[4] TREE-RING ANALYSIS BY PIXE FOR A HISTORICAL RECORD OF SOIL CHEMISTRY RESPONSE TO ACIDIC AIR-POLLUTION [J].

LEGGE, AH ;

KAUFMANN, HC ;

WINCHESTER, JW .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1984, 3 (1-3) :507-510

[5]

LOVESTAM G, 1990, AMBIO, V19, P87

[6] SCANNING PROTON MICROPROBE ANALYSIS APPLIED TO WOOD AND BARK SAMPLES [J].

LOVESTAM, NEG ;

JOHANSSON, EM ;

JOHANSSON, SAE ;

PALLON, J .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 49 (1-4) :490-494

[7]

Manville J. F., 1974, Bi-monthly Research Notes, V30, P3

[8] REACTION ZONE RELICS AND THE DYNAMICS OF FUNGAL SPREAD IN THE XYLEM OF WOODY ANGIOSPERMS [J].

PEARCE, RB .

PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY, 1991, 39 (01) :41-55

[9]

PEARCE RB, 1987, FUNGAL INFECTION PLA

[10]

PEARCE RB, UNPUB

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