Surface Root System of Eucalyptus marginata Sm.: Anatomy of Non-Mycorrhizal Roots.

Dell, B.; Wallace, IM

doi:10.1071/bt9810565

Cited by 7 publications

(5 citation statements)

References 12 publications

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“…Collapse is especially prominent in parenchyma cells of soilgrown roots where distortions can be extreme. Dell and Wallace (1981) describe 'exploding' cortical cells during embedment of fine tree roots. Severe distortions are almost always produced during infiltration of suberised endodermal and root peripheral cells (e.g.…”

Section: Anatomy Of Undistorted Cells Tissues and Fine Organsmentioning

confidence: 99%

Invited Review: Cryo-scanning electron microscopy (CSEM) in the advancement of functional plant biology. Morphological and anatomical applications

McCully

Canny

Huang

2009

Functional Plant Biol.

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Cryo-scanning electron microscopy (CSEM) is reviewed by exploring how the images obtained have changed paradigms of plant functions and interactions with their environment. Its power to arrest and stabilise plant parts in milliseconds, and to preserve them at full hydration for examination at micrometre resolution has changed many views of plant function. For example, it provides the only feasible way of accurately measuring stomatal aperture during active transpiration, and volume and shape changes in guard cells, or examining the contents of laticifers. It has revealed that many xylem conduits contain gas, not liquid, during the day, and that they can be refilled with sap and resume water transport. It has elucidated the management of ice to prevent cell damage in frost tolerant plants and has revealed for the first time inherent biological and physical features of root/soil interactions in the field. CSEM is increasingly used to reveal complementary structural information in studies of metabolism, fungal infection and symbiosis, molecular and genetic analysis.

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Section: Anatomy Of Undistorted Cells Tissues and Fine Organsmentioning

confidence: 99%

Invited Review: Cryo-scanning electron microscopy (CSEM) in the advancement of functional plant biology. Morphological and anatomical applications

McCully

Canny

Huang

2009

Functional Plant Biol.

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“…Short roots of tbe tree Eucalyptus marginata Sm. have small root caps; although they do not extend tbere is no mention of loss of tbeir apical meristem (Dell & Wallace, 1981). Short, tuberous roots occur in Sinapis alba L. in response to drought.…”

Section: Loss Of Growth Potential In Branch Rootsmentioning

confidence: 99%

The branch roots of Zea. II. Developmental loss of the apical meristem in field‐grown roots

Varney

McCully

1991

New Phytologist

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SUMMARYMost of the first-order branches of field-grown maize roots are short (around 10 mtn). An anatomical and morphological survey of the tips of branches from nodal roots showed that almost all branches lacked a normal apex. .Most tips were broken off (e.g. 74 % in the mid-regions of roots from node 1, 95 "^o in the same region of node 3 roots), with living, mature tissues right to their end. The remaining tips were of 3 types: {a) Determinate tips with rounded offends, no root cap, and mature tissues right at the tip; {b) Normal tips which were miniaturized versions of main root apices with a meristem, root cap and long zone of elongation ; (c) Intermediate tips in which cap loss, meristem outgrowth and differentiation were incomplete. Normal tips were mainly on branches of the youngest roots and determinate tips were the predominant intact tips of old roots. This distribution, together with anatomical features of the three tip types indicates that Determinate tips form from Normal tips by a controlled pattern of cell enlargement, differentiation and, possibly, cell division. Many tips must be broken accidentally by excavation, or earlier by browsers or pathogens. There was some evidence, however, that some broken tips are formed by developmental!y controlled abscission both before and after the formation of determinate tips.

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“…A comparison of the superficial and pyramidal sheathing ectomycorrhizas is presented in Table 4. Detail of non-mycorrhizal root anatomy is given by Dell & Wallace (1981).…”

Section: Discussionmentioning

confidence: 99%

ECTOMYCORRHIZA FORMATION IN EUCALYPTUS

1987

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SUMMARYCortinarius and Hysterangium species are a dominant component of the macrofungi in eucalypt forests of Western Australia, and their hyphae occupy 10% of the soil surface area. Anatomical studies of jarrah {Eucalyptus marginata Donn ex Sm.) and karri {E. diversicolor F. Muell) roots collected in association with hyphae of Cortinarius globuliformis Boug., C. ochraceus Clel. and Hysterangium inflatum Rodway showed mycorrhizal structures with mantles one to five cells thick and Hartig nets penetrating to the hypodermis. These superficial ectomycorrhizas were similar in size to those of non-colonized feeder roots and lacked the expanded cortex and broad mantle of pyramidal ectomycorrhizas formed by Laccaria laccata (Scop, ex Fr.) Berk. & Br.Colonized host roots responded with polyphenol accumulation in the epidermis/hypodermis and lignification of the outer cortex for both the superficial and pyramidal types.

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Surface Root System of Eucalyptus marginata Sm.: Anatomy of Non-Mycorrhizal Roots.

Cited by 7 publications

References 12 publications

Invited Review: Cryo-scanning electron microscopy (CSEM) in the advancement of functional plant biology. Morphological and anatomical applications

Invited Review: Cryo-scanning electron microscopy (CSEM) in the advancement of functional plant biology. Morphological and anatomical applications

The branch roots of Zea. II. Developmental loss of the apical meristem in field‐grown roots

ECTOMYCORRHIZA FORMATION IN EUCALYPTUS

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