Growth and Development as Influenced by Fruit and Seed Formation

Murneek, A. E.

doi:10.1104/pp.7.1.79

Cited by 25 publications

(6 citation statements)

References 4 publications

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“…(c) Mlurneek has proposed that the developing embryos induce senescence in the parent plant. This has been explained as a competition by the emiibrvos for foodI reserves (9) or, more recently, as a possible pro(luction of inhibitors by the developing embry-os (10 …”

Section: Discussionmentioning

confidence: 99%

Experimental Modification of Plant Senescence.

1959

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Section: Discussionmentioning

confidence: 99%

Experimental Modification of Plant Senescence.

1959

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“…August decreased the total nitrogen yield per acre September 1. Murneek (1932) attributed decreased herbage N yields to movement of nitrogen into roots and rhizomes as maturity approached. That was supported by work in South Dakota demonstrating that prairie hay left standing in the field increased little in biomass, but decreased appreciably in nitrogen content (Moxon et al, 1951).…”

Section: Nitrogen Percentagementioning

confidence: 99%

Effect of Burning and Clipping on Big Bluestem Reserve Carbohydrates

Owensby¹,

Paulsen²,

McKendrick³

1970

Journal of Range Management

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Highlight Carbohydrate content of rhizomes and stem bases of big bluestem (Andropogon gerurdi Vitman) at different times during the growing season were measured on plots with different clipping and burning treatments. Big bluestem on plots burned May 1 had higher herbage yields, percent nitrogen, and total nitrogen in forage than that on unburned plots. Rapid vegetative growth during mid-July reduced carbohydrate percentages in rhizomes and stem bases of big bluestem. Burning did not affect final storage of carbohydrate on unclipped plots, but, in general, it reduced carbohydrate reserves on clipped plots. Late season clipping reduced carbohydrate reserves more than early season clipping. No. 1107. Department of Agronomy, Kansas Agricultural Experiment Station.

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“…On the other hand, it is well documented that parasitic plants can cause effects on plant growth and allometry (Press & Phoenix 2005; Heide-Jørgensen 2008 and references therein); we also hypothesize that the reduction in size of parasitized plants is influenced by a reduction in sugar availability. Blossoming and fruiting are some of the most important energy drains in the plant life cycle as has been demonstrated in classical papers (Murneek 1932;Wardlaw 1990). This drain occurs normally when the host blossoms, but parasitized plants, in addition to investing products of photosynthesis in its own growth, also lose them to the parasites (Press 1995;García-Franco et al 2007).…”

Section: Discussionmentioning

confidence: 87%

The endoparasite Pilostyles ulei (Apodanthaceae – Cucurbitales) influences wood structure in three host species of Mimosa

Amaral¹,

Ceccantini²

2011

IAWA J

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Pilostyles species (Apodanthaceae) are endoparasites in stems of the plant family Fabaceae. The body comprises masses of parenchyma in the host bark and cortex, with sinkers, comprising groups of twisted tracheal elements surrounded by parenchyma that enter the secondary xylem of the host plant. Here we report for the first time the effects of Pilostyles parasitism on host secondary xylem. We obtained healthy and parasitized stems from Mimosa foliolosa, M. maguirei and M. setosa and compared vessel element length, fiber length, vessel diameter and vessel frequency, measured through digital imaging. Also, tree height and girth were compared between healthy and parasitized M. setosa. When parasitized, plant size, vessel diameter, vessel element length and fiber length are all less than in healthy plants. Also, vessel frequency is greater and vessels are narrower in parasitized stems. These responses to parasitism are similar to those observed in stressed plants. Thus, hosts respond to the parasite by changing its wood micromorphology in favour of increased hydraulic safety.

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Growth and Development as Influenced by Fruit and Seed Formation

Cited by 25 publications

References 4 publications

Experimental Modification of Plant Senescence.

Experimental Modification of Plant Senescence.

Effect of Burning and Clipping on Big Bluestem Reserve Carbohydrates

The endoparasite Pilostyles ulei (Apodanthaceae – Cucurbitales) influences wood structure in three host species of Mimosa

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