Search Results - "Botha, C. E. J."

xylem sap retrieval pathway in rice leaf blades: evidence of a role for endocytosis? by Botha, C.E.J, Aoki, N, Scofield, G.N, Liu, L, Furbank, R.T, White, R.G

“…The structure and transport properties of pit membranes at the interface between the metaxylem and xylem parenchyma cells and the possible role of these pit…”
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A tale of two neglected systems-structure and function of the thin- and thick-walled sieve tubes in monocotyledonous leaves by Botha, C E J

“…There is a large body of information relating to the ontogeny, development and the vasculature of eudicotyledonous leaves. However, there is less information…”
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Comparative ultrastructure of plasmodesmata of Chara and selected bryophytes: toward an elucidation of the evolutionary origin of plant plasmodesmata by Cook, M.E, Graham, L.E, Botha, C.E.J, Lavin, C.A

“…We have used transmission electron microscopy to examine plasmodesmata of the charophycean green alga Chara zeylanica, and of the putatively early divergent…”
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Phloem loading in the sucrose-export-defective (SXD-1) mutant maize is limited by callose deposition at plasmodesmata in bundle sheath—vascular parenchyma interface by Botha, C. E. J., Cross, R. H. M., van Bel, A. J. E., Peter, C. I.

“…Using Lucifer Yellow we have demonstrated that the phloem-loading pathway from the mesophyll to the bundle sheath--vascular parenchyma interface inZea mays…”
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Rice sucrose transporter1 (OsSUT1) up-regulation in xylem parenchyma is caused by aphid feeding on rice leaf blade vascular bundles by Ibraheem, O., Botha, C. E. J., Bradley, G., Dealtry, G., Roux, S.

“…The role of the sucrose transporter OsSUT1 in assimilate retrieval via the xylem, as a result of damage to and leakage from punctured phloem was examined after…”
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Symplastic solute transport and avocado [Persea americana] fruit development: A decline in cytokinin/ABA ratio is related to appearance of the hass small fruit variant by Moore-Gordon, C.S. (University of Natal (South Africa)), Cowan, A.K, Bertling, I, Botha, C.E.J, Cross, R.H.M

“…Studies on the effect of fruit size on endogenous ABA and isopentenyladenine (iP) in developing avocado (Persea americana Mill. cv. Hass) fruit revealed that…”
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Distribution and frequency of plasmodesmata in relation to photoassimilate pathways and phloem loading in the barley leaf by Evert, R.F, Russin, W.A, Botha, C.E.J. (Wisconsin Univ., Madison (USA). Dept. of Botany)

“…Large, intermediate, and small bundles and contiguous tissues of the leaf blade of Hordeum vulgare L. 'Morex' were examined with the transmission electron…”
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Population growth rate and relative virulence of the two South African biotypes of Russian wheat aphid, Diuraphis noxia, and bird cherry-oat aphid, Rhopalosiphum padi, on resistant and non-resistant barley by Jimoh, M.A, Botha, C.E.J, Edwards, O, Bradley, G

“…In South Africa a new biotype of the Russian wheat aphid (RWA), Diuraphis noxia (Kurdjumov) (Hemiptera: Aphididae), RWASA2, has appeared which exhibits an…”
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Plasmodesmatal frequency in relation to short-distance transport and phloem loading in leaves of barley (Hordeum vulgare). Phloem is not loaded directly from the symplast by BOTHA, C. E. J, CROSS, R. H. M

“…Abstract only…”
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Plasmodesmatal frequency in relation to short-distance transport and phloem loading in leaves of barley (Hordeum vulgare). Phloem is not loaded directly from the symplast by Botha, C. E. J., Cross, R. H. M.

“…We investigated the phloem loading pathway in barley, by determining plasmodesmatal frequencies at the electron microscope level for both intermediate and…”
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Russian wheat aphids: Breakfast, lunch, and supper. Feasting on small grains in South Africa by Botha, C.E.J., Sacranie, S., Gallagher, S., Hill, J.M.

“…The Russian Wheat Aphid (Diuraphis noxia, RWA) negatively impacts commercially grown barley and wheat in South Africa. Climate change, the attendant rise in…”
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A moderate elevation in [CO2] results in potential hypervirulence on SABBIErica by Gallagher, S., Hill, J.M., Murugan, N., Botha, C.E.J.

“…The Russian Wheat Aphid (Diuraphis noxia Kurdjumov, 1913) (RWA) is a serious pest of grain crops and is of considerable concern in South Africa, particularly…”
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Quantification of symplastic continuity as visualised by plasmodesmograms: diagnostic value for phloem-loading pathways by Botha, C.E.J, Bel, A.J.E. van

“…The use of plasmodesmatal frequency to correlate cell-cell symplastic transport capacity remains a contentious problem, as variation in cell shape, accurate…”
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Russian wheat aphid biotype RWASA2 causes more vascular disruption than RWASA1 on resistant barley lines by Jimoh, M.A., Botha, C.E.J., Edwards, O.

“…We investigated the comparative effects of the feeding damage caused by two Russian wheat aphid (RWA, Diuraphis noxia Kurdjumov) biotypes, RWASA1 and RWASA2,…”
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Xylem – as well as phloem – sustains severe damage due to feeding by the Russian wheat aphid by Saheed, S.A., Liu, L., Jonsson, L., Botha, C.E.J.

“…Investigation of comparative effects of feeding damage by the Russian wheat aphid (RWA, biotype SA1, Diuraphis noxia Mordvilko) on leaf blades of susceptible…”
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Free-space marker studies on the leaf ofZea mays L by Evert, R. F., Botha, C. E. J., Mierzwa, R. J.

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Aphid (Sitobion yakini) investigation suggests thin-walled sieve tubes in barley (Hordeum vulgare) to be more functional than thick-walled sieve tubes by Matsiliza, B., Botha, C.E.J.

“…Barley, like most other grasses that have been studied, contains two kinds of sieve tube. The first formed are called thin‐walled sieve tubes because of their…”
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Symptomatic defence mechanisms include wound callose deposition after Rhopalosiphum padi L. infestation of barley leaves by Saheed, S.A., Jonsson, L.M.V., Botha, C.E.J.

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Enzymic Maceration of Citrus Callus and the Regeneration of Plants from Single Cells by BUTTON, J., BOTHA, C. E. J.

“…The maceration medium comprised a basal nutrient medium (BM) containing an optimum concentration of 3% (w/v) sucrose. Mannitol and sorbitol were inferior…”
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Resistance or tolerance: An examination of aphid ( Sitobion yakini) phloem feeding on Betta and Betta-Dn wheat ( Triticum aestivum) by de Wet, L.R., Botha, C.E.J.

“…Engineering pest resistance into crops is important. However, the mechanisms of resistance are not clearly understood. In this study, we examined the effects…”
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